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Home My WebLink AboutCC AG PKT 2002-09-23 #X AGENDA REPORT 0 ; 1 9 ,4 EI ,01, 0 ) * 0 DATE: September 23, 2002 ' TO: Honorable Mayor and City Council THRU: John B. Bahorski, City Manager FROM: Lee Whittenberg, Director of Development Services Buster Scholl, Building Official SUBJECT: PUBLIC HEARING - ADOPTION OF ORDINANCE 1488, ADOPTING THE 2001 CALIFORNIA BUILDING CODES SUMMARY OF REQUEST: Conduct public hearing, receive public testimony, and adopt Ordinance Number 1488 with any amendments determined appropriate. Ordinance No. 1488, An Ordinance of the City of Seal Beach, California Adopting by Reference the 2001 California Building Code, incorporating the "Uniform Building Code" Volumes 1, 2 and 3, 1997 Edition, including all Appendices thereto; the 2001 California Plumbing Code, incorporating the "Uniform Plumbing Code ", 2000 Edition, including all Appendices thereto; the 2001 California Mechanical Code, incorporating the "Uniform Mechanical Code ", 2000 Edition, including all Appendices thereto; the 2001 California Fire Code, incorporating the "Uniform Fire Code ", 2000 Edition, including all Appendices thereto; the 2001 California Electrical Code, incorporating the "National Electrical Code ", 1999 Edition, including all Appendices thereto, and including the "Uniform Administrative Code Provisions for the National Electrical Code ", 1999 Edition; the "Uniform Housing Code ", 1997 Edition; the "Uniform Administrative Code ", 1997 Edition; the "Uniform Sign Code ", 1997 Edition; the "Uniform Solar Energy Code ", 2000 Edition; the "Uniform Building Security Code ", 1997 Edition; the "Uniform Code for the Abatement of Dangerous Buildings ", 1997 Edition; the "Uniform Swimming Pool, Spa and Hot Tub Code ", 2000 Edition, and Appendix Chapter 1 of the California Code for Building Conservation, incorporating Appendix Chapter 1 of the "Uniform Code for Building Conservation ", 1997 Edition, making Amendments thereto, and amending portions of Chapter 5 of The Code of the City of Seal Beach" BACKGROUND: Every three years the California Building Standards Commission (BSC) updates the Uniform Codes governing construction practices in the State of California. Affected state AGENDA ITEM 1 -X— C:\My Documents \2001 Unifomm Codes\2001 Code Adoption.CC SR 2.doc \LW\09 -18 -02 - Adoption of 2001 Construction Codes — Public Hearing and Adoption of Ordinance No. 1488 City Council Staff Report September 23, 2002 agencies review these codes, amend them, and the BSC adopts them in the California Administrative Code, Title 24. After the State Code is published, every City and County throughout the state has an opportunity to adopt the Codes with more stringent local amendments based on local geological, topographical and/or climatic conditions. These local amendments are to be adopted within 6 months of the BSC adoption, which will require the City to adopt the proposed amendments by November 1, 2002. This proposed Ordinance includes these more stringent local amendments, most of which are proposed upgrades to the structural steel seismic provisions and amendments proposed by the Orange County Fire Authority amending the California Building Code. The City's building official has been a participant in the Uniformity Committee of the Orange Empire Chapter of ICBO. As a result, the amendments have been limited to those proposed by the Uniformity Committee and the Orange County Fire Authority. These proposed amendments are reasonably necessary to safeguard life and property within the City of Seal Beach due to the local geological, topographical and climatic conditions. They do not involve a change in fees. City building staff and County fire staff have met with the Building Industry Association (BIA), which includes most of the local developers, and they have agreed to these proposed amendments. These proposed amendments would also require the installation of fire sprinkler systems in new homes over 5,500 square feet in size citywide (See proposed amendment to Section 904.29.2, page 22 {Building Code amendment} and Section 1003.2.9.1, page 42 {Fire Code amendment} of the proposed ordinance). The Council has the discretion to maintain the recommended change, delete this proposed change, or reduce the threshold area to another appropriate area. Currently the City requires fire sprinkler systems for all new homes located between Pacific Coast Highway and the Pacific Ocean. Provided as Attachment 2 is a summary of the requirements for fire sprinklers by city within the jurisdiction of the Orange County Fire Authority. The city requirements vary from being required for all new homes, regardless of size, to homes in excess of either 3,600 or 5,500 square feet. At the time of introduction of Ordinance No. 1488 Councilperson Campbell raised a concern regarding the use of wood shake shingles as allowable re- roofing material when a complete re- roofing of an existing structure is proposed. The concern was related to the eventual loss of the fire - retardant material utilized on this type of shingle, reducing the fire safety aspect of the wood shake shingle. In reviewing this matter with the Building Official, Buster Scholl, the following information is provided for the information of the City Council: • The proposed code adoption ordinance in its modification of Table 15 -A (page 24) requires all re -roofs and additions to have a minimum Class B roofing assembly. A Class B roofing assembly is required to be tested and approved by a recognized third party organization (i.e. ICBO, UL or equivalent) to show compliance with UBC Standard 15 -2. • The code requires a "roofing assembly" to include the roof deck, substrate or thermal barrier, insulation, vapor retarder, underlayment, inter- layment, base plies, and roof 2001 Code Adoption CC SR 2 2 Adoption of 2001 Construction Codes — Public Hearing and Adoption of Ordinance No. 1488 City Council Staff Report September 23, 2002 covering that is assigned a roofing assembly. Therefore, the fire - retardant material that is used to impregnate the shakes or shingles is only one component of the "roofing assembly" which is tested to give the complete assembly the Class B fire rating. By requiring the Class B roofing assembly in the proposed code adoption, the City is getting a much more fire safe roofing assembly than if no amendment was being made to Table 15 -A, which (if not amended) would continue to allow non -rated roof coverings for most applications including single family residences. Provided as Attachment 3 is a copy of Uniform Building Code Standard 15 -2, Test Standard for Determining the Fire Retardancy of Roof Assemblies, which is adopted as pert of the general Building Code adoption. This document sets forth in extensive retail the various testing methodologies that roof assemblies are subjected to in order to meet a "Class A ", "Class B ", or "Class C" rating. Also provided is a letter from Fire Tech Services, Inc., describing the testing program for a particular brand of rated fire retardant cedar shakes and shingles, and the web page for Chemco that provides additional information on treated wood shakes and shingles. In order to adopt the latest California Codes, the City must follow the procedure set forth in Section 50022.3 of the Government Code. The first reading of the Ordinance was conducted on September 9 and this public hearing has been scheduled by the City Council in compliance with the provisions of Section 50022.3 of the Government Code. Notice of this hearing has followed the procedure prescribed by Section 6066 of the government Code, e.g., once a week for two successive weeks with at least five days between publication dates. The Ordinance may be adopted after the public hearing. If the City Council determines to adopt the proposed code amendments, they would become effective on October 23, 2002. FISCAL IMPACT: None, complies with provisions of law to ensure the Uniform Codes are updated pursuant to Health and Safety Code § 18941.5. No changes in construction fees currently in effect are proposed. RECOMMENDATION: Conduct public hearing, receive public testimony, and adopt Ordinance Number 1488 with any amendments determined appropriate. N • 1 ► APPRO D: ( • 4 ee Whittenberg John B. is ahor i Director of Development Services City ager 2001 Code Adoption.CC SR 2 3 Adoption of 2001 Construction Codes — Public Hearing and Adoption of Ordinance No. 1488 City Council Staff Report September 23, 2002 Attachments: (3) Attachment 1: Ordinance No. 1488, An Ordinance of the City of Seal Beach, California Adopting by Reference the 2001 California Building Code, incorporating the "Uniform Building Code" Volumes 1, 2 and 3, 1997 Edition, including all Appendices thereto; the 2001 California Plumbing Code, incorporating the "Uniform Plumbing Code ", 2000 Edition, including all Appendices thereto; the 2001 California Mechanical Code, incorporating the "Uniform Mechanical Code ", 2000 Edition, including all Appendices . thereto; the 2001 California Fire Code, incorporating the "Uniform Fire Code ", 2000 Edition, including all Appendices thereto; the 2001 California Electrical Code, incorporating the "National Electrical Code ", 1999 Edition, including all Appendices thereto, and including the "Uniform Administrative Code Provisions for the National Electrical Code ", 1999 Edition; the "Uniform Housing Code ", 1997 Edition; the "Uniform Administrative Code ", 1997 Edition; the "Uniform Sign Code ", 1997 Edition; the "Uniform Solar Energy Code ", 2000 Edition; the "Uniform Building Security Code ", 1997 Edition; the "Uniform Code for the Abatement of Dangerous Buildings ", 1997 Edition; the "Uniform Swimming Pool, Spa and Hot Tub Code ", 2000 Edition, and Appendix Chapter 1 of the California Code for Building Conservation, incorporating Appendix Chapter 1 of the "Uniform Code for Building Conservation ", 1997 Edition, making Amendments thereto, and amending portions of Chapter 5 of The Code of the City of Seal Beach Attachment 2: OCFA Partner Jurisdiction Sprinkler Ordinances Attachment 3: "Class B" Wood Shake and Shingle Information ❑ Uniform Building Code Standard 15 -2, Test Standard for Determining the Fire Retardancy of Roof Assemblies ❑ Letter from Fire Tech Services, Inc. re: Testing Programs for fire retardant cedar shakes and shingles ❑ Chemco Web Page — www.chemco.org/corp /press.html 2001 Code Adoption.CC SR 2 4 Adoption of 2001 Construction Codes — Public Hearing and Adoption of Ordinance No. 1488 City Council Staff Report September 23, 2002 ATTACHMENT 1 ORDINANCE NO. 1488, AN ORDINANCE OF THE CITY OF SEAL BEACH, CALIFORNIA ADOPTING BY REFERENCE THE 2001 CALIFORNIA BUILDING CODE, INCORPORATING THE "UNIFORM BUILDING CODE" VOLUMES 1, 2 AND 3, 1997 EDITION, INCLUDING ALL APPENDICES THERETO; THE 2001 CALIFORNIA PLUMBING CODE, INCORPORATING THE "UNIFORM PLUMBING CODE ", 2000 EDITION, INCLUDING ALL APPENDICES THERETO; THE 2001 CALIFORNIA MECHANICAL CODE, INCORPORATING THE "UNIFORM MECHANICAL CODE ", 2000 EDITION, INCLUDING ALL APPENDICES THERETO; THE 2001 CALIFORNIA FIRE CODE, INCORPORATING THE "UNIFORM FIRE CODE ", 2000 EDITION, INCLUDING ALL APPENDICES THERETO; THE 2001 CALIFORNIA ELECTRICAL CODE, INCORPORATING THE "NATIONAL ELECTRICAL CODE ", 1999 EDITION, INCLUDING ALL APPENDICES THERETO, AND INCLUDING THE "UNIFORM ADMINISTRATIVE CODE PROVISIONS FOR THE NATIONAL ELECTRICAL CODE ", 1999 EDITION; THE "UNIFORM HOUSING CODE ", 1997 EDITION; THE "UNIFORM ADMINISTRATIVE CODE ", 1997 EDITION; THE "UNIFORM SIGN CODE ", 1997 EDITION; THE "UNIFORM SOLAR ENERGY CODE ", 2000 EDITION; THE "UNIFORM BUILDING SECURITY CODE ", 1997 EDITION; THE "UNIFORM CODE FOR THE ABATEMENT OF DANGEROUS BUILDINGS ", 1997 EDITION; THE "UNIFORM SWIMMING POOL, SPA AND HOT TUB CODE ", 2000 EDITION, AND APPENDIX CHAPTER 1 OF THE CALIFORNIA CODE FOR BUILDING CONSERVATION, INCORPORATING APPENDIX CHAPTER 1 OF THE "UNIFORM CODE FOR BUILDING CONSERVATION ", 1997 EDITION, MAKING AMENDMENTS THERETO, AND AMENDING . PORTIONS OF CHAPTER 5 OF THE CODE OF THE CITY OF SEAL BEACH 5 2001 Code Adoption.CC SR 2 Adoption of 2001 Construction Codes — Introduce Ordinance No. 1488 and Schedule Public Hearing for September 23, 2002 City Council Staff Report September 9, 2002 ATTACHMENT 2 OCFA PARTNER JURISDICTION SPRINKLER ORDINANCES 5 2001 Code Adoption CC SR 0 0 4) y 0 U T () CO C G) N 0 re 1 O N E N co O 0 O d) U C " (V v ^ N 0 0 0 0 0 0 0 0 0 0 C re an d . � 0 c 0 E co to to Lo 0 co a) 'a in 1.6 a i �O L(S 2 ccS Sri �ci ►ri cp LO c ' y CL C LLLL ) U� O c .c 0 .. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CO a To .` 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 E a- o L 0 0 0 0 0 0 0 0 0 0 0 0 0 U w co O t- N p N p 0 N C (0 O Z > f9 C N O 0 0 c C O V N N C Z d 7 C N Q y _ O U O Q m V o -, J 0) 0 O) J O N d m 2 J J J ce a) Q El? ` 0 1 - 0C m a) m 0 a) c U .. m E c 'El O O � C - >+ a) c co O _ • = c 00 to a) E 0 0 0 0 0 0 00 o O 0 0 0 o L 8 to to Ln to Ln a) a) to C a) E O O E O O O O O O a) O O o o o 0 0 0 0 O O O O O O O O O (O (0 (0 O (D tf) O (0 • 0 L (0 E 7 t o S m c >, rn a)) O m C y Q. - E J C C 0 2 (0 f0 y O (n in in > } U O CO Adoption of 2001 Construction Codes — Public Hearing and Adoption of Ordinance No. 1488 City Council Staff Report September 23, 2002 ATTACHMENT 3 "CLASS B" WOOD SHAKE AND SHINGLE INFORMATION ❑ UNIFORM BUILDING CODE STANDARD 15 -2, TEST STANDARD FOR DETERMINING THE FIRE RETARDANCY OF ROOF ASSEMBLIES ❑ LETTER FROM FIRE TECH SERVICES, INC. RE: TESTING PROGRAMS FOR FIRE RETARDANT CEDAR SHAKES AND SHINGLES ❑ CHEMCO WEB PAGE: WWW.CHEMCO.ORG /CORP/PRESS.HTML 2001 Code Adoption.CC SR 2 7 • 1997 UNIFORM BUILDING CODE STANDARD 15 -2 UNIFORM BUILDING CODE STANDARD 15 -2 TEST STANDARD FOR DETERMINING THE 4. FIRE RETARDANCY OF ROOF ASSEMBLIES Based on Standard Specification 790 October 5, 1983, ' of the Underwriters Laboratories Inc. ; See Sections 601.3; 1501.1; 1502; 2602.5.2; 2603.1.6; 2603.7.1, Item 2; Table 15 -A, Uniform Building Code SECTION 15.201 — GENERAL nominal 2 -inch (51 mm) [2.38 -inch (60.3 mm) outside diameter] ;a : 15.201.1 Scope. These requirements cover the performance of pipe having a 1/2-inch-wide (12.7 mm), 36- inch -long (910 mm) roof - covering materials exposed to fire conditions, and are in- slot in the side toward the test deck. The burner is to be supplied tended to indicate the characteristics of roof coverings when ex- with gas at both ends through nominal 1 -inch (25 mm) [1.32 -inch posed to fire originating from sources outside a building on which (33.4 mm) outside diameter] pipe to provide uniform gas pressure the coverings may be installed. They are applicable to roof cover- at the burner assembly. ings intended for installation on either combustible or non- 4. A blower and air duct for providing the required wind condi- combustible decks when the roof coverings are applied as tions. The air introduced by the blower is to be taken from outside ti.''. intended, the test room. ' Class A roofing assemblies are effective against severe fire test j • 5. Adjustable fins mounted inside the air duct to straighten the exposures. Under such exposures, roofing assemblies of this class airstream and reduce turbulence. are not readily flammable, afford a fairly high degree of fire pro- 6. A baffle mounted on the back edge of the test deck to prevent • tection to the roof deck, do not slip from position, and are not ex- backfiring under the deck. ;' - pected to produce flying brands. 7. Noncombustible boards extending from the sides and bot- Class B roofing assemblies are effective against moderate fire tom of the air duct to the simulated- eaves - and- comice construe- test exposures. Under such exposures, roofing assemblies of this tion mentioned in Item 2 (not used durin g burning-brand test). class are not readily flammable, afford a moderate degree of fire g a t. r • � ' protection to the roof deck, do not slip from position, and are not The tests are to be conducted in a room vented to the outer air to ;• r. expected to produce flying brands. relieve the air pressure created by the blower. During these tests, all doors and windows in the room are to be closed, and the room Class C roofing assemblies are effective against light fire test otherwise controlled as necessary to prevent outside wind and ,-ii,.. ;� : exposures. Under such exposures, roofing assemblies of this class weather conditions from affecting the test results. Tests are not to i are not readily flammable, afford a measurable degree of fire pro- be conducted if the room temperature is less than 50 °F (10 °C) or • tection to the roof deck, do not slip from position and are not ex- more than 90 °F (32 ° C). " ' pected to produce flying brands. • Tests conducted in accordance with these requirements are in- apparatus15 -2 -2 illustrates the essential elements of the rain test : : tended to demonstrate the performance of roof coverings during `- e - the types and periods of exposure involved, but are not intended to 15.2013 Preparation of Samples. ' determine the acceptability of roof coverings for use after expo- ''^ 15.2013.1 Deck construction. Except for treated wood shin - [ sure to fire. files or shakes for the intermittent -flame and the burning -brand Roof- covering materials are also required to comply with the tests, the test deck is to be 3 feet (1016 mm) wide by 4 feet :r _ requirements for construction, material specifications and per- (1320 mm) long and is to be made of kiln -dried No. 1 white pine or �: re ece as applicable to specific , ma t ponderosa i , t5 pP types, designs, sizes and ar- P moisture lumber with not less than 8 percent or more than '' . • rangements. All such applicable additional requirements are not 12 percent moisture content. The lumber is to be free from large or �' • • • 4.: considered to be within the scope of these requirements for fire loose knots, sapwood, rot or pitch pockets, and is to contain no .• i �'' 4' tests, edge knots. Individual deck boards are to be of nominal 1- inch -by- t r... F. ' _ The terms "combustible" and "noncombustible" as used in the for the Class C burning-brand mm) test, the width of the deck board used to �� standard apply to decks as follows: . - • ,. be such that the brands will be located directly over the spaces be- I . 1 • Combustible is a deck formed of wood (sheathing boards or tween the boards. The deck boards are to be laid across the shorter e,. •;: ' Plywood). dimension of the test deck, spaced 1 /4 inch (6.4 mm) apart, and se- •2. N oncombustible is a deck formed of metal, concrete or curely nailed to two nominal 2- inch -by-4 -inch (51 mm by `•' r• poured gypsum. 102 mm) wood battens located under and flush with the outer 15 edges of the deck. Decks so constructed are to be even and uni- . • .. Test Apparatus. As illustrated in Figure 15 -2 -1, the form. apparatus used for the tests described in Section 15.202 is to con- For the intermittent -flame, burning -brand and flying -brand • ' silt of the followin • tests on treated wood shingles and shakes, the test decks are to be ' �_ • 1 ▪ • A test deck to which the roof - covering materials to be tested constructed of nominal 1- inch -by -4 -inch (25 mm by 102 mm) `;abelted, mounted on a framework. The pitch of the framework lumber (dressed on four sides), spaced 1 /2 inch (13 mm) apart and 1< ' adjustable. securely nailed to two nominal 2- inch -by -4 -inch (51 mm by 102 A construction of noncombustible boards, mounted on the mm) wood battens. The lumber is to be of the quality specified in I `' ,:,front of the framework to simulate eaves and cornices. the above paragraph. `fit. 3. A burner (for At the manufacturer's option, the roof covering may be investi- ". ` n ytng- brand tests) consisting of 44 -inch spread-of-flame 20 mm) length of recommended p t plywood a ufacture ks of the minimum thickness • a . „ ; <; Y The plywood (A -C grade, ' 3-303 STANDARD 15-2 , ; 1997 UNIFORM BUILDIN G CppE .��; .•. . . Group 1, exterior) is to have face and back veneers of Douglas fir. SECTION 15.202 — PERFORMANCE �`; A plywood deck is to have 1 /8-inch (3.2 mm) vertical and horizon- '^ tal joints, and all vertical joints are to be centered on nominal 15.202.1 General. The intermittent -flame test, the spread j'• ` • 2- inch -by -4 -inch (51 mm by 102 mm) wood battens. If the manu- flame test and the burning -brand test are applicable to all ro • facturer specifies that the battens are also to be used for horizontal Brings. The flying -brand test, the rain test and the weatherin :; � joints, the classification shall be so restricted. are conducted only on treated wood shingles and shakes. g t • • EXCEPTION: When the roof covering is limited to installation . pa . A plywood deck to be used for the intermittent -flame test is to noncombustible decks, the penetration tests, that is, the inter have a horizontal joint 8 inches (229 mm) from and parallel to the flame test and the burning -brand test, need not be conducted. ��ttey. ; ' 3 foot -long (1020 mm) leading edge. In addition, a vertical For these tests, mortar (cementitious mixture, lime and water) is 1 joint that is centered on the deck and extends from the leading to .be troweled into the joint formed by the leading edge of the . 1 edge of the deck to the horizontal joint is to be provided. As the roof - covering material and the framework of the carriage, to pre. _ - ' ' .1 lower 1 /2 inches (38 mm) of this joint is not protected by the nom- vent air or the test flame from traveling under the material being . 1 inal 2- inch -by -4 -inch (51 mm by 102 mm) batten, due to the tested. mounting arrangement of the carriage, the underside of this joint During the tests, the test decks are to be subjected to an air an.. , from the end of the 2 by 4 (51 mm by 102 mm) to the leading edge rent that flows uniformly over the top surface of the roof ' of the deck is to be covered by a piece of sheet steel 2 inches (51 material, as determined by a pretest calibration of the equipment " mm) wide. using a bare 3 /3- foot =by -3 -foot (1016 mm by 991 mm) wood deck. At points midway up the slope of the bare deck, ply, ih A plywood deck to be used for a Class A or Class B burning- ' '' g the deck positioned at an incline of 5 inches to the horizontal foot ,.i . : brand test is to be provided with a horizontal joint that is 22 in- (127 mm per 0.3 m), the velocity of the air current is to inches be 12( (94 t . : , - ches (572 mm) from and parallel to the leading edge of the deck. A I deck to be used for a Class A test is to have a vertical joint centered /2 miles per hour wit ± 0.8 km/h), as measured at the center and . edges of the deck, with each measurement being 3 on the deck and extending above the horizontal joint. A deck to be mm) above the surface of the deck. _ used for a Class B test is to be provided with two vertical joints, ) extending above the horizontal joint, and each located 10 inches For these tests, the test decks are to be at an incline of 5 inches (254 mm) from and parallel to the side edges of the deck. A ply- per horizontal foot (127 mm per 0.3 m); except that built -up roof r • 1 wood deck to be used for a Class C burning -brand test is to have coverings are to be tested at the maximum incline recommended ' i five horizontal joints with at least 1 /8-inch (3.2 mm) spacing be- by the manufacturer, but not more than 5 inches per horizontal foot - tween joints in the plywood. (127 mm per 0.3 m). • 15.202.2 Intermittent -flame Test. A test deck is to be mounted • • Unless the material to be tested is intended for use on noncom- on the framework at the required incline, and subjected to the spe- 1 bustible decks only, the test deck for the spread -of -flame test, on cified air current. The test deck is then to be subjected to a lumi- ' ' , material other than wood shingles and shakes, is to be constructed nous gas flame approximately triangular in shape, approximately in accordance with either the intermittent -flame test or the manu- 3 feet (914 mm) wide at the leading edge of the deck, and gradual- ' i facturer's option above, except that (1) the vertical and horizontal ly narrowing to a width of approximately 6 inches (151 mm) at the , 1 joints need not be provided and (2) the length of the deck is to be top of the deck. Licks of flame may extend approximately an addi- 13 feet (3962 mm) for Class C tests; 9 feet (2743 mm) for Class B tional 1 to 2 feet (300 mm to 600 mm). The gas supply is to be regu- ' ' tests; and 8 feet (2438 mm) for Class A tests. For tests on materials lated so that the flame, if not augmented by combustion of the roof intended for use on noncombustible decks only, a noncombustible covering, develops a temperature of 1,400 °F ± 50 °F (760 °C ± 1 deck of the applicable length may be used. The test deck for wood 28 ° C) for a Class A or Class B test, and 1,300 °F ± 50 °F (704 °C ± ' shingles and shakes is to be constructed of nominal 1 -inch- 28 ° C) for a Class C test. The temperature is to be determined by a • ' by -4 -inch (25 mm by 102 mm) lumber (dressed on four sides) No. 14 B. &S. gage (0.064 inches) (1.63 mm) chromel- alumel wire • `' spaced 1 /2 inches (38 mm) apart, and securely nailed to two nom- thermocouple located 1 inch (25.4 mm) toward the source of - inal 2- inch -by -4 -inch (51 mm by 102 mm) wood battens, except flame from the lower edge of the first board of a bare deck formed , 1 that the length of the deck is to be as specified above. of noncombustible material. - The flame is to be intermittently applied at intervals as specified ' • 15.201.3.2 Roofing assembly application. Representative sam- in Table 15 -2 -B. I pies of roofing assemblies or roof - covering material are to be applied to test decks constructed in accordance with the applicable Following the last application of flame, air d u s rent is to be main- ' tained requirements described. The assemblies are to be conditioned in ined until all evidence of flame, glow and smoke has disap- • accordance with Section 15.201.3.3. The material to be tested is to until u from the exposed surface nacceptable results occur, but t the material being tested to be applied, in accordance with the manufacturer's instructions, to until u in no case is the air current to be the applicable number of test decks as specified in Table 15 -2 -A. or r one-half hour more for a Clas las one hour for a Class A or Class B test The material is to extend to, and be flush with, the edges of the deck, one -half hour s C test. except for a 1 -inch (25 mm) overhang at the leading edge. During the intermittent -flame test, including the on and off peri- ' ods of flame application and the subsequent period of maintained • 15.201.3.3 Conditioning. The completed test assemblies are to airflow, the test deck is to be observed for the appearance of sus - be stored indoors at temperatures not lower than 60 °F 16 °C tained flaming on the underside, production of flaming or glowing _ brands, displacement of portions of the test sample, and exposure higher than 90°F (32°C) ( ) or C) for the period of time necessary to cure or falling away of portions of the roof deck. the material, but not more than 60 days. Should storage conditions vary from those specified, the decks are to be stored until moisture 15.2023 Spread -of -flame Test. A test deck is to be mounted - determinations indicate that the deck lumber has no Less than and luminous gas flame applied, as described in Section 15.202.2, 8 percent or more than 12 percent moisture content. Test decks are second paragraph, for the intermittent -flame tests. to be stored so that each will be surrounded by freely circulating For a Class A or Class B test, the gas flame is to be applied con - air tinuously for 10 minutes or until the spread of flame (flaming of . 3-304 1 • A 1997 UNIFORM BUILDING CODE STANDARD 15 -2 the material being tested) permanently recedes from a point of 50 °F (888 °C ± 10 ° C) measured 2 inches (58.7 mm) above the maximum spread, whichever is the shorter duration. For a Class C top of the burner. The burner is to be shielded from drafts. test, the gas flame is to be applied for four minutes and then re- r moved. Class A brands are to be exposed to the flame for five minutes, During and after the application of the test flame, the test sample the flame as s follows they are to be rotated to present each surface to is to be observed for the distance to which flaming of the material has spread, production of flaming or glowing brands, and dis- Each 12- inch -by -l2 -inch (305 mm by 305 mm) face for 30 sec- placement of portions of the test sample. The observation is to onds. continue until the flame has permanently receded from a point of Each 2 inch -by -12 -inch (57.2 mm by 305 mm) face for 45 - maximum spread. seconds. 15.202.4 Burning -brand Test. Each 12- inch -by -12 -inch (305 mm by 305 mm) face again for 30 seconds. 15.202.4.1 General. A test deck is to be mounted as described in Class B brands are to be exposed to the flame for four minutes, Section 15.202.2, second paragraph, for the intermittent -flame during which time they are to be rotated to present each surface to test, except that the framework is to be 60 inches (1524 mm) from the flame as follows: t • - the air duct outlet (see Figure 15 -2 -1), and the gas piping and burner are to be removed so as not to obstruct the airflow. Each 6- inch -by -6 -inch (152 mm by 152 mm) face for 30 sec- ' •' onds. 1 ,:- 15.202.4.2 Size and construction of brands. The brands to be Each 2 inch -by -6 -inch (57.2 mm by 152 mm) face for 30 sec- t • ' ' , used in these tests are to be as shown in Figure 15 -2 -3 and are to be onds. t constructed as follows. Prior to the test, the brands are to be condi- i tioned in an oven at 105 °F to 120 °F (40 °C to 49 ° C) for at least Each 6- inch -by -6 -inch (152 mm by 152 mm) face again for 30 4 - 24 hours. seconds. w- The Class A brand is to consist of a grid, 12 inches ( ) d 305 mm Class C brands are to be exposed to the flame for two minutes, s during which time they are to be rotated to present each of the 1 - f square and approximately 2 inches (57 mm) thick, made of inch- by -1 /, -inch (38.1 mm by 38.1 mm) faces to the flame for , • kiln -dried Douglas fir lumber that is free from knots and pitch d F. • • pockets. The brand is to be made of 36 strips of lumber each one minute. ' - inch by 3 / 4 inch (19.1 mm by 19.1 mm) square by 12 inches 15.202.4.4 Test conditions. (305 mm) long, placed in three layers of 12 strips each, with strips 15.202.4.4.1 Class A. A brand is to be d m placed 1 /4 inch (6.4 m) apart. These strips are to be placed at placed on the surface of right angles to those in adjoining layers and are to be nailed, using each test deck at the location considered most vulnerable (point of i_' `. • 1 (38.1 mm) long No. 16 gage nails, or stapled using minimum coverage over deck joint) with respect to ignition of the Y • deck, but in no case closer than 4 inches (102 mm) from either side No. 16 gage steel wire staples having a 7 /32 -inch (5.6 mm) crown 1_ and 11/4-inch (31.8 mm) legs, at each end of each strip on one face, or 12 inches (305 mm) from the top or bottom edge of the deck. • a .. and in a diagonal pattern as shown in Figure 15 -2 -3 on the other The brand is to be placed so that the strips in both the upper and i- face. The dry weight of the finished brand is to be 2,000 grams ± lower layers are parallel to the direction of airflow. The brand is to 1_ • 150 grams at the time of the test. be secured to the deck by a No. 18 B. &S. gage (0.040 inches) (1.02 )f The Class B brand is to consist of a grid, 6 inches (153 mm) mm) soft iron wire. square and approximately 2 inches (57 mm) thick, made of If the roofing assembly is applied to a pine board deck, the brand square and Douglas fir lumber that is free from knots and pitch ordinarily will be in the most vulnerable location when the upper a, pockets. The brand is to be made of 18 strips of lumber 3 /4 inch by test of the brand is located 3 inches (76 mm) above a horizontal re /4 inch (19.1 mm is 19.1 made square and 6 lumber 3 4 inch mm) joint in the est deck. If the roofing assembly A • il y is applied ra le ply- 1 ;d ' l placed in three layers of six strips each, with strips spaced wood deck, the brand ordinarily will be in the most vulnerable lo- 1/4 inch (6.4 mm) apart. The strips are to be placed at right angles cation when the brand is placed so that it is centered laterally with i • to those in adjoining layers and are to be nailed, using respect to the vertical joint in the test deck, and the upper edge of %d . • - 11 /2- inch -long (38.1 mm) No. 16 gage nails, or stapled using No. the brand is located 3 inches (76 mm) above the horizontal joint. 16 gage steel wire staples having a 7 /32 -inch (5.6 mm) crown and 15.202.4.4.2 Class B. A brand is to be placed on the surface of a . - •' 11 /4 -inch (31.8 mm) legs, at each end of each strip on one face, and the test deck at each of the two locations considered most vulner- in a diagonal pattern as shown in Figure 15 -2 -3 on the other face. able (point of minimum coverage over deck joint) with respect to or . The dry weight of the finished brand is to be 500 grams ± 50 grams ignition of the deck. Each brand is to be positioned with its upper to. : at the time of the test. edge 1 inches (38.1 nun) above the selected joint in the deck :st . ; , The Class C brand is to consist of a piece of kiln -dried nonresi- boards, but in no case closer than 6 inches (152 mm) from each nous white pine lumber that is free from knots and pitch pockets. or 12 inches (305 mm) from the top or bottom edge of the - . The brand is to measure 1 inches by 1 inches by �'/3, inch deck. The brands are to be placed so that the strips in both the up- id. _, • • = (38.1 mm by 38.1 mm by 19.8 mm) and a saw kerf 1 /8 inch (3.2 per and lower layers are parallel to the direction of airflow. They s- .. .. • gym) wide is to be cut across the center of both the top and bottom are to be secured to the deck by a No. 18 B. &S. gage (0.040 inch) ]g . , faces to a depth of one half the thickness of the brand, and at right (1.02 mm) soft iron wire. The second brand is not to be applied un- • • • angles to each other. The dry weight of the finished brand is to be til all burning resulting from the first brand has ceased. n ' - 91 /4 grams 1 1/4 grams at the time of the test. If the roofing assembly is applied to a pine board deck, the - 0 ' •• 15.202.4.3 Ignition of brands. Before application to the test upper edge each br is located 3 inches mm) above a hors- .2 , .- • deck, the brands are to be ignited so as to bum freely in still air as zontal joint in the test deck. If the roofing assembly is applied to a • described below. The flame of the gas burner used to ignite the plywood deck, the brands ordinarily will be in the most vulnerable ' 0- = • ,. • brands is to essentially envelop the brands during the process of location when they are placed so that they are centered laterally O f -, I gnition. The temperature of the igniting flame is to be 1,630 °F± with respect to a vertical joint in the test deck, and the upper edge 3 -305 ' ' STANDARD 15 -2 �s 1997 UNIFORM BUILDING Co pE • ;; . ; ,� of each brand is located 1 inches (38.1 mm) above the horizon - The gas flame is to be applied continuously for (1) 10 ; tal joint. for a Class B test and (2) four minutes for a Class C test. Then , current is to be maintained until all evidence ' 15.202.4.4.3 Class C asphalt shingles. Loose or unfastened ence of flame , glow an portions of the shingles that can be bent up to 90 degrees without smoke has disappeared from the exposed surface of the material injury to the fastenings are to be cut away. Twenty ignited brands tr tested wood to od shake h as, the flying of the will ur be developed. is to For are then to be placed at one- or two - minute intervals in the areas of treated the velocity of the air current s to be in_ •' :' minimum coverage 1 /2 inch (12.7 mm) away from any cut edge of creased to 18 miles per hour (29 km/h) after the gas flame is extin. shingles in the course above that course on which the brand is guished. • placed. No brand is to be placed closer than 4 inches (102 mm) to 15.202.6 Rain Test. The test decks are to be mounted in a frame. the point where the previous brand was located. work at 4 units vertical in 12 units horizontal (33.3% slo e ). Brands are to be located not closer than 2 inches (50.8 mm) to Spray nozzles that deliver an average of 0.7 inch (18 mm) of water the joints between adjacent shingles on the same course. All hour at a temperature of 35 °F to 60 °F (2 °C to 15 ° C) are to be b • rands are to be placed so that the center of each brand is directly mounted approximately 7 feet (2134 mm) above the test decks. over the space between the deck boards. Brands are to be held in The test decks are to be exposed to 12 one -week conditioning cycles. Each cycle is to consist of 96 he position throughout the test by a No. 18 B. &S. gage (0.040 inches) hours of water exposure fol. (1.02 mm) soft iron wire stretched across the width of the deck. lowed by 72 hours of drying time at 140°F (60 The final dry_ - - The saw kerf on the deck side of the brand is to be parallel to the ing cycle is to be controlled so that the moisture content of the deck direction of the airflow. The wire is to be placed in the other saw lumber is between 8 and 12 percent. The conditioned decks are kerf. then to be tested in accordance with Table 15 -2 -A. - - If the roofing assembly is applied to plywood decks, the brands An alternative test cycle may be utilized at the manufacturer's are to be placed centrally over the joints in the plywood deck. option whereby two sets of six decks are to be alternately exposed to seven days (168 hours) of water exposures, followed by two ' 15.202.4.4.4 Class C sheet roofing or built -up covering assem- days' (48 hours) draining and five days' (120 hours) curing at blies. Twenty ignited brands are to be placed at one- or two- 140 °F (60 ° C). This cycle is to be repeated seven times, except that minute intervals in the areas of minimum coverage. No brand is to the seventh water exposure is to be reduced to six days (144 be placed closer than 4 inches (102 mm) to the joint where a pre- hours). vious brand was located. All brands are to be placed so that the center of each brand is directly over the space between the deck 15.202.7 Weathering Test. The test decks are to be mounted boards. See "asphalt shingles" for securing of brands in place and outdoors at an incline of 5 units vertical in 12 units horizontal ' relative positioning of brand saw kerfs. (41.7% slope), facing south. After each of one, two, three, five and .; • • 10 years of exposure, three test decks are to be brought indoors and 15.202.4.4.5 Class C treated wood shingles and shakes. conditioned until the deck lumber attains a moisture content be- Twenty ignited brands are to be placed on each treated wood tween 8 and 12 percent. From each set of decks, one deck is to be shingle deck at one- or two- minute intervals. For treated wood subjected to the intermittent -flame test, one to the burning -brand shakes, 20 ignited brands are to be distributed at one- or two- test and one to the flying -brand test. minute intervals on each pair of decks. Each brand is to be cen- tered over the 1 /4 -inch (6.4 mm) joint between shakes or shingles so that the top edge of the brand is approximately 1 /2 inch (12.7 SECTION 15.203 — CONDITIONS OF ACCEPTANCE mm) below the butt of the shake or shingle in the course above. No FOR CLASSIFICATION brand is to be placed closer than 4 inches (102 mm) to the point where a previous brand was located. See "asphalt shingles" for se- At no time during the intermittent -flame, spread -of -flame or curing of brands in place and relative positioning of brand saw burning -brand tests shall: kerfs. 1. Any portion of the roof - covering material be blown or fall 15.202.4.4.6 Duration of tests. Each individual test, whether off the test deck in the form of flaming or glowing brands, or Class A, Class B or Class C, is to be continued until the brand is 2. The roof deck be exposed by breaking, sliding, cracking or consumed and until all evidence of flame, glow and smoke has dis- warping of the roof covering, or appeared from both the exposed surface of the material being 3. Portions of the roof deck fall away in the form of glowing tested and the underside of the test deck, or until unacceptable re- particles. sults occur, but not for more than 1 hours for a Class A or Class • B test. The results of tests in which the brands do not show pro- For the purpose of the requirements, any piece of roof covering gressive and substantially complete consumption after applica- that continues to glow or flame upon landing on the test room floor tion to the test deck are to be disregarded. is considered to be a glowing or flaming brand, respectively. •.' 15.202.4.4.7 Observations. During the tests, observations are At no time during the Class A, Class B or Class C intermittent to be made for the appearance of sustained flaming on the under- flame or burning -brand tests shall there be sustained flaming of • side of the test deck, production of flaming or glowing brands of the underside of the deck. roof - covering material, displacement of the test sample and the EXCEPTION: If flaming does occur, another series of tests may exposure or falling away of portions of the roof deck. be conducted and the results accepted provided no additional sustained flaming occurs. • 15.202.5 Flying -brand Test. This test applies to Class B and For the spread -of -flame test, the flaming of the material shall - _ Class C treated wood shingles and shakes. If a Class A rating is not have spread beyond 6 feet (1829 mm) for Class A, 8 feet (2438 - desired, appropriate tests of increased severity are to be con- mm) for Class B and 13 feet (3962 mm) (the top of the deck) for ducted. Class C. There shall have been no significant lateral spread of - A test deck is to be mounted and a luminous gas flame applied flame from the path directly exposed to the test flame. as described in Section 15.202.2, second paragraph, for the For the flying -brand test on treated wood shingles and shakes, • . intermittent -flame test. flying, flaming or glowing brands shall not be produced. 3-306 _ �. • ODE 1997 UNIFORM BUILDING CODE a STANDARD 15 -2 4 , q. e' notes TABLE 1 5-2-A--REQUIRED TESTS AND TEST ASSEMBLIES ie air - V and REQUIRED NUMBER OF TEST ASSEMBLIES terial ,, MATERIAL TO BE TESTED Intermttent- Spred of Burnin pl t For flame i Test flame a Test brand Test brand Test Ram Test Weathering Test Other than wood shakes or shingles, for installation to in - on: extin A. Combustible decks: 1. Class A 2 2 4 NA ,, 2. Class B or C 2 2 NA NA rame 1I 2 NA NA NA Spray B. Noncombustible decks only NA 2 NA NA NA NA er per Wood shakes and shingles: to be . A. Class A lucks. B. Class B or C 3 (2 [ 3 3 (2) [5 3 ( 2 ) [ 6 15 oning NOTES: re fol NA —Test is not required. tl dry = The number in parentheses is the number of samples from the rain test. e. deck •, The number in brackets is the number of samples from the weathenng test. ks are – TABLE 15 -2 -B —FLAME APPLICATION .urer's ' :posed two e- '" CLASS (m uE s) ON F(m nut s)F TEST CYCLES Y 'ing at A 2 2 15 pt that B 2 2 8 s(144 1 2 3 punted •- • • , izontal ve and • ' ors and ent be- • is to be ' • 3 IN. (94 mm) , -brand HEIGHT OF VELOMETER NOZZLE BAFFLE TO PREVENT BACK- FIRING UNDER CE . TEST DECK 4 IN. (114 mm) LOCATION OF THERMOCOUPLE \ \ \ \ y ` 1 /2 IN. D AIR INTRODUCED FROM OUTSIDE THE me or O � ( 13 mm ) Q TEST ROOM BY BLOWER CONTROLLED OA O j BY RHEOSTAT t or fall' , - TEST SPECIMEN �� \ C r, or •,'. ' MOUNTED O N �. FRAMEWORK PITCH �� 30 IN. king or. CAN BE ADJUSTED _ I T 13 IN (762 mm) AIR DUCT l ., ; + ( 343 mm) I S 1 ;lowing ` • , 52 IN. (1321 mm) - : � + 5 IN. — \ f ASBESTOS - (127 mm) CEMENT overing E ni l floor a BOARD 13 351N. E; (1111 N. •ely. 0 ) (889 mm) (1111 mm) (343 mm Z mittent ' co ming of m FLOOR LEVEL 1 C ONSTRUCTION OF ASBESTOS- 6 IN. (152 mm) -- CEMENT BOARDS TO ► �— tests may,: SIMULATE EAVES AND sustains ,. CORNICE 7 IN. (178 mm) — Po f-- ial shall _ 9 IN. (235 mm) ---10. 4--- et (243 --- to t— 10 IN. (260 mm) lack) for-, w 33 IN. (838 mm) 4 1 IP Bread of',. 60 IN. (1524 mm) SPACING OF FRAMEWORK ., WHEN MAKING BURNING BRAND TEST I shakes' , FIGURE 15-2-1--FIRE TEST APPARATUS 3-307 +^f • t-0 : ' ...,,,....,,,, 10 .. ‘ C :I 1997 UNIFORM BUILDING DOE. ••: r SECTION SHOWING IMPORTANT SPACE RELATIONS - NM LOCATION OF I; VELOMETER READING i ' I 1 IN. (25 mm) GAS SUPPLY LINE t • FINS TO REDUCE TURBULENCE I r-/ � AND STRAIGHTEN AIR STREAM I� I -- BURNER OF 2 IN. (51 mm) PIPE -44 IN. 40 IN. � (1118 mm) LONG SLOT IN SIDE TOWARD "' li (1016 mm) — �� 36 NC (9E4 m LONGmm) WIDE, `• I II 7 FT. O IN. � —� r wit (2134 mm) .,t OTEST SPECIMEN r / TO GET UNIFORM GAS PRESSURE , AT THE BURNER, GAS IS PIPED TO THERMOCOUPLE • • C BOTH ENDS , GAS BURNER It il li TO GAS SUPPLY PLAN 0 •- i Free outlet to be provided to relieve air pressure created by blower. Doors and windows in the room that houses the i • apparatus to be kept closed at all times during tests to prevent turbulence which would otherwise distort flame and prevent adequate control thereof. FIGURE 15-2 -1 —FIRE TEST APPARATUS — (Continued) it • • “,' -ASR 1� - ., -� • � " � ^ s , IA /3 � tif- s F •t -4� - . ''' I - f '' .-, - k? r - -- ..::-.---- - -- - - - .-; ?4,,,.. 2) . .. z. i;' ° 1 Yb I¢ --- ' -` . 44- 1 1:"..;' '2,1 '-';:2...:::';'-ii:>:‘ ; ' . ', Vir_4 i ' ' r t "t . i F t '•• e d e ' • xt w s1 Y • ,N6 Air, r� i � . . if a -= ,, x •'<<°�' _ 4r' ' • i f t . c f .. + r •f� , -- � - ' .c , • ' r " `a.�+ , - "S'.,.,., , , fi J :. K 4 65 —17S FIGURE 15 -2 -2 —RAIN -TEST APPARATUS 3-308 • • t • 1997 UNIFORM BUILDING CODE STANDARD 15-2 • ; • . 'd • - _ _ . • • • -; •••• • _ - ,f}- •- - _ _ , 2 - .•• • 1 • • . . i z . - • E`: . ;y: :„7 -• • • " ?-E • I Ef ; • ' -6 • ,• ..'• ^" " " • e , • -g-- 's 4 - , ' . ... 1, , • j P."'..!'•:-."?••• 4...er. i :,•.? • "" '4 re 44 „, ft'A" %?: Z - • - 444 S:ES 4. • • - ' • ; • • _43 '.••%, • • • = : ' .f• := 3 r,k3 - I_ .1 • • •• • t „ _1,••:, • ;•••, - , •17'•" • ,- Et , . • - ' - , -•=ve,r-1-` _ . _ - 4 f-e ,se • ,r .- ' • ,'• - _ . • - • 1. 1: AZ , I: 4 • =-•` • 7 1, 1 “- . t. '7; , ,• tz -r; = • -- El- 11 • • - -134 alf `:1 - z z •- • • • FIGURE 15-2-3--A, B AND C BRANDS • • • • • . • • • .. • • • - • . . • . - . • • . . • • •• - , • • . 3-309 Chemco Test History and Description Described in the following letter by James H. Heywood, President Fire Tech Services, Inc. Quality Assurance Agency and Code Consultants 3872 -225 Place SE Issaquah, WA 98027 (425) 382 -3875 September 15, 1999 Bradford Bosch Serrano Sircle Home Owners Association, No. 17 672 Serrano Drive San Luis Obispo, CA 93405 Dear Mr. Bosch: The testing and classification of fire retardant cedar shakes and shingles has had a long history. The Code officials, local and national, the Fire community, manufacturers, inspecting organizations and many other interested parties have contributed greatly to the Test Standards, Building Code and Ordinances currently in acceptance today. The major test device for determining the fire retardant classification of roofing materials is described in detail in the Underwriters Laboratories, Standard Specification 790 and the American Society for Testing Materials, Standard Test Methods for Fire Test of Roof Coverings E -108. Both of these organizations have active committees and task groups that are constantly upgrading the Standards. The Uniform Building Code references UL 790 in its Test Standard 15 -2. In addition to describing the test device, its operational and calibration requirements are included as well. Rather than list these in this discussion you may find them in Volume 3 of the UBC Standard 15 -2. I will describe the tests and procedures that Chemco, Inc. underwent to certify their FTX products. Inspection of Chemco's production facility by Fire Tech Services, Inc., a Quality Assurance Agency. NER -AQ 214. Selection of samples for fire tests. Sample test decks prepared and fire tests performed. Spread of Flame test - designed to simulate a fire spreading across the field of the roof, up and over the eaves. Wind velocity -12 MPH, gas flame temperature - 1400 degrees F = 50 degrees F, test deck incline 5:12, test duration 10 minutes. Intermittent Flame test - designed to simulate the thermal shock and surface cooling of a roof covering, with possible cracking and exposure resulting from the ebb and flow of a fire up and over the eaves. Wind velocity 12 MPH, gas flame temperature 1400 degrees F = 50 degrees F, test deck incline 5:12. Test duration: Class B, 8 cycles -gas Flame On 2 minutes, Off 2 minutes. Class A, 15 cycles - gas Flame On 2 minutes, Off 2 minutes. Burning Brand test - designed to simulate burning material blown or fallen onto the field of the roof. The Class B brands are made from 18 -3/4 " x %" x 6" strips of Ith -dried Douglas Fir lumber, forming a grid 6" square and 2%" thick. The brands are ignited and placed on the test decks in locations considered most vulnerable. Wind velocity and test deck incline are the same as in the previous tests. Six test decks with . one brand each, for Class A. Three test decks, with two brands each, for Class B. Flying Brand test - designed to test the possibility of a shingle or shake roof producing flying brands capable of igniting combustible materials. Wind velocity 12 MPH, increased to 28 MPH after gas flame application for shake decks. Gas Flame temperature 1400 degrees F = 50 degrees F, test duration 10 minutes for Class B, 20 minutes for Class A. - 1 - Conditions of Acceptance Spread of Flame test - No lateral spread of flame for Class A. 6" maximum spread beyond impingement area, for Class B, 8" maximum spread beyond impingement area. Three test decks per material tested. Intermittent Flame test - Class A and Class B, no penetration of the test deck, no exposure of roof deck by breaking, sliding, cracking or warping of test material, no flying brands produced. Three test decks per material tested. Burning Brand test - Class A and Class B, no penetration of the test deck, no exposure of roof deck, no flying brands produced. Six test decks for Class A, three test decks for Class B. Flying Brand test - no flying, flaming or glowing brands produced. Three test decks per material tested. After the initial fire tests were successfully completed, Fire Tech Services personnel selected additional samples of the FTX pressure treated shakes and shingles and prepared test decks for the Rain tests. Rain test This test was devised to expose the test decks to severe weather conditions to explore the possibility of leaching the FR chemicals from the shakes and shingles. Six test decks of each material are placed in a test chamber at an incline of 4:12, nozzles capable of delivering 0.7 inches of water per hour are mounted . at a height of 7 feet above the test decks. The test decks are exposed to 12 one -week conditioning cycles. Each cycle consists of 96 hours of water exposure followed by 72 hours of drying time at 140 degrees F. This is the equivalent of more than 800 inches of rain over the 12 -week test period. Following the 12 -week rain cycling the test decks are subjected to the Intermittent Flame, Burning Brand and Flying Brand fire tests. Two decks of each material tested are required for each of the fire tests. The same acceptance criteria were used as for the initial fire tests. Following the successful completion of the Rain test, with its associated fire tests, Fire Tech Services personnel selected FTX pressure treated cedar shakes and shingles and prepared test decks for the Weathering test. Weathering test - this test was designed to expose the test material to actual weather conditions over a ten -year period. Fifteen test decks of each material were placed outside at an incline of 5:12, facing south. After each of one, two, three, five and ten years of exposure, three test decks of each tested material was brought indoors and conditioned until the deck lumber attained a moisture content between 8 and 12 percent. From each set of decks, one deck was subjected to the Intermittent Flame test, one to the Burning Brand test and one to the Flying Brand test. The same acceptance criteria were used as for the initial fire tests. Comments After each of the fire tests associated with the Rain test and the 1,2,3,5 and 10 -year exposures of the Weathering test, the test decks were examined and test notes and results compared with the original certification tests. There was very little in the way of physical change to the test decks and all of the test results compared favorably. All of the decks examined indicated that there was no reduction in the ability of the FTX treated shakes and shingles to resist fire even after exposure to prolonged weather conditions. All of the certification tests were passed by Chemco's FTX pressure treated cedar shakes and shingles. Fire Tech Services, in conjunction with Chemco, developed Quality Control Manuals and Procedures to assure the continued performahce of the shakes and shingles. Follow -up inspections, one per month with product sampling, and quarterly fire tests (Intermittent Flame, Burning Brand) have proven the consistency of treatment. Not one failure in over 18 years. Due to the possibility of borderline products being certified and to the doubts of some officials regarding the Rain Test to fairly judge the redemption of the FR chemicals, an Amended Rain Test was developed. -2- Amended Rain test The test decks are mounted in a frame at a slope of 4:12. Uniformly distributed water exposure is accomplished with spray nozzles that deliver an average of 0.3 gal /min /sf at a temperature of 35 degrees F to 90 degrees F, mounted approximately two feet above the test decks. The test decks are to be exposed to three conditioning cycles per day which totals 252 eight -hour cycles for the 12 -week duration. Each cycle consists of four hours of water exposure, followed by four hours of ventilation and drying. (Approx. 1.6 million gallons of water used for six decks during the 12 -week test.) Drying shall utilize sunlamps for both heat and ultraviolet (UV) exposure, with supplemental heaters as required to maintain a temperature of 145 degrees F to 155 degrees F measured 1 inch above the surface of the test deck with this temperature attained within fifteen minutes from the start of drying. The temperature- measuring device must be shielded from the UV radiation of the sunlamps. One lamp per eight square feel of deck surface shall be directed normal to mounted 26 inches - 6 inches above this specimen. Bulbs providing UV characteristics of 5.0 W /min /nm irradiance at a wavelength of 315 to 400 mm at one meter are required. Uniform forced air movement across the surface of the decks at a rate of at least 25 fpm is required along with sufficient room air changes to assure thorough drying. Following completion of the exposure cycling, the decks are immediately subjected to the fire tests as outlined for the Rain Test. Conclusions of acceptance are the same as in the initial certification tests. Chemco's FTX pressure treated cedar shakes and shingles have passed the Amended Rain test. In prior discussions, members of the fire community have expressed doubts regarding the ability of the cedar shakes and shingles to retain the FR chemicals after long -range weather exposures. I have discussed this doubt with Chemco's research chemists and they assure me that their process actually bonds the FR chemicals with the cell structure of the wood. This process includes proprietary FR chemicals, vacuum - pressure application of chemicals, (which forces the chemicals throughout the wood structure), heat curing and drying. Once the process is completed the FR chemicals will remain with the wood, even after years of weathering and natural ligmin erosion. Studies performed by the scientists of the National Forest Products Laboratories, and other research organizations, have shown that the FR chemicals remain in the shakes and shingles after exposure to Rain, Weathering and Amended Rain tests, maintaining their ability to resist fire. For more information on Chemco Test History and Description, please contact Chemco directly at (360) 366 -3500. „mow_ MYLICEFACCM - 3 - CHEMCO Pressroom Page 1 of 3 «R� — a, a Finest rite Fietazdant TT+eatntent Fbr We ud Products F • _ ', Dry/. " •_, R ' 1R C - .. Tja M EMAIL THIS PRESSROOM - Press Releases Welcome to the CHEMCO PAGE TO A FRIEND Pressroom. If you're working on CHEMCO Passes Stringent Japanese Burn Test a story and we can help, please r ��'. -- " March 1, 2002... CHEMCO, the world leader in fire let me know by email or by r ' `` :',11 • ` retardant products for cedar, is thrilled to announce that calling the Ferndale, Washington E- it has successfully passed Japan's strict burn test of its office at 360 - 366 -3500. The g navigation bar at the left and the fire retardant Western Red Cedar siding, used in new top of this page offers helpful 1 • home construction... background information on the k: � ' ' [FULL TEXT] g company, our products, and our �.-. , � . ' � - ' market. This section will be ,. 3 ;$ • • .._ ,, CHEMCO Promotes Use Of Fire Retardant For Wood updated regularly, so check in Roofing Products often. • - ' k , ,l August 1, 2001... CHEMCO, the world leader in fire • `a ` r„,,..... products for cedar, is promoting the use of . •�!s�'.'..' wood as a safe choice for roofing material across the David Plenkovich, Public i PRESSROOM US. A new web site for CHEMCO has recently come Relations online... dplenkovich@chemco.org + t i Ci i . ..,, „ t , - ;, [FULL TEXT] Other Site Links t r � Case Studies R I: c �, , � ' .',. W hen Building Supply Yard Goes Up In Flames, SHAKES & SHINGLES Y.:ia&_zg—._ :r= • Fire Retardant Wood "Just Says, No” • Shake & Shingle_pplications July 4 , 2002... On May 10th, 2002, a large paper and • Application Instructions cardboard fire broke out at a recycling center next door •Care &Maintenance Feedback to Webmaster to Pacific Supply in Newark, California. Flames jumped • Long -Term Fire Protection the 25 -foot gap separating the two businesses, • and NES /NER 215 Listing consuming lumber and building supplies pallet by pallet. • Wind Resistance Emergency crews responded and eventually put out the • Hail Resistance fire. The fire totally destroyed untreated wood shingles • Insulation Value and asphalt shingles, but fire retardant treated shakes • ICBO Ilisting and shingles survived... [FULL_TEXT] • CA State_Fire Marshal's listing • CA Health and Safety Code Montana Cabin with CHEMCO- Treated Fire •Frequently Asked Questions Retardant • Warranty Cedar Shakes Survives Devastating Wildfire March 5, 2002... The summer forests of Montana are LUMBER, PLYWOOD, SIDING frequently scorched by some of the fiercest wildfires in • Exterior Lumber Applications the West. An August 14, 2001 lightning strike near • Cedar Siding Applications Whitefish Divide, north of Kalispell set in motion the • Exterior Plywood Applications Moose Creek fire near North Fork that raged for more • Fire Protection • than three weeks.... [FULL TEXT] •Frequently Asked Questions • Warranty Oceanside Home Saved by Fire Retardant Cedar Shakes GENERAL • February 15, 2002... Wueste of Oceanside, California, • Environmentally_Friendly proved that prudent fire- safety steps can save urban • Material Safety Data Sheet homes from the spread of fire from an adjacent home. In • Glossary of Technical Terms the early morning hours of December 28th, 2001, Mr. • All Video Clips http: / /www.chemco.org /corp /press.html 09/18/2002 CHEMCO Pressroom Page 2 of 3 Wueste awoke to horror of his neighbor's home • Web Site Map engulfed in flames... [FULL TEXT] Recent Press Clips Letter To The Editor — Thomas D. Melum, CHEMCO's Director of Governmental Affairs, responds to the inacurate statement in the May /June issue that "...few communities [in California]...allow wood roofs... ". He writes, "The exact opposite is true. At last count, wood ban jurisdictions in California number in the dozens (with some recently removing their bans) and jurisdictions allowing fire retardant treated wood roofing, number in the thousands." -- Architectural West, July /August 2002 Medal Winner: Olympic Snow Basm Village Shows Off New Cedar Shake_Roofs — To reprise a turn- of -the- century National Park Service architectural motif, expansive log gables were accented with one inch jumbo cedar shakes. The architects insisted the wood roofing be fire retardant. — Los Angeles Times, March 26, 2002 Greens Don't See Forest for the Trees -- Patrick Moore was a co- founder of Greenpeace. Now as a consultant he is critical of environmentalists who refuse to accept wood as a renewable and environmentally - friendly bulding material. He summarized his views in a recent commentary -- Los Angeles Times, March 26, 2002 Burn test opens Japan to maker of fire-retardant_siding — Puget Sound Business Journal, March 27, 2002 Legal and Safe: Treated Cedar Shakes and Shingles -- Architectural West, July /August 2001 by Phil Favro, Phil Favro & Associates City_ retreats_ from wood -roof ban — Jennifer Radcliffe, Star - Telegram, Nov. 9, 2001 Cedar Roofs Pose Danger -- Northwest Herald Online, Nov. 2001 In California and other areas across the West, building codes require cedar shakes and shingles to be treated with fire- retardant chemicals, but most of the rest of the nation is free to use untreated ones. Heaven's Above The Beauty & Versatility of Cedar Shake Roofing on a Church in Southern California -- Western Roofing, March /April 2001 Star Struck: Wood Roofs are Alive and Well in Beverly http: / /www.chemco.org /corp /press.html 09/18/2002 CHEMCO Pressroom Page 3 of 3 Hills — Architectural West,May /June 2001 visrFa View the clips of the pressure impregnation manufacturing process. Download and then play, unless you have a high -speed connection. Windows Media Player (1.8 MB) - Mac Quicktime (2.2 MB) - Higher Quality Mpeg (3.2MB). View the nine separate tests Chemco VJDEO ' , treated shakes and shingles must pass.. Download and then play, unless you have a high -speed connection. Windows Media Player (2.6 MB) - Mac Quicktime (3 MB) - Higher Quality Mpeg (4.5 MB). View a homeowner discussing how % Chemco- treated roofing helped save their home from fire, while homes around them burned down. Download and then play, unless you have a high -speed connection. Windows Media Player (1.2 MB) - Mac Quicktime (1.4 MB) - Higher Quality Mpeg (2 MB). A longer version is available for users with DSL, cable modems, or faster connections: Windows Media Player (2.7 MB) - Mac Quicktime (3.3 MB) - Higher Quality Mpeg (4.8 MB). CHEMCO Inc. • P.O. Box 875 • Ferndale, WA 98248 • Phone - 360.366.3500 • Fax - 360.366 3831 • http: / /www.chemco.org /corp /press.html 09/18/2002 4 et 1997 UNIFORM BUILDING CODE ; 1 STANDARD 15 -2 5 4: the material being tested) permanently recedes from a point of 50 °F (888 °C ± 10 °C) measured 25 /16 inches (58.7 mm) above the maximum spread, whichever is the shorter duration. For a Class C top of the burner. The burner is to be shielded from drafts. test, the gas flame is to be applied for four minutes and then re- m moved. Class A brands are to be exposed to the flame for five minutes, During and after the application of the test flame, the test sample the flame as follows ey are to be rotated to present each surface to is to be observed for the distance to which flaming of the material %i,:, has spread, production of flaming or glowing brands, and dis- Each 12- inch -by -12 -inch (305 mm by 305 mm) face for 30 sec - '` K placement of portions of the test sample. The observation is to onds. continue until the flame has permanently receded from a point of Each 2 inch -by -12 -inch (57.2 mm by 305 mm) face for 45 s . maximum spread. seconds. Each 12- inch -by -12 -inch (305 mm by 305 mm) face again for . 15.202.4 Burning -brand Test. "'} 30 seconds. 15.202.4.1 General. A test deck is to be mounted as described in Class B brands are to be exposed to the flame for four minutes, -_ Section 15.202.2, second paragraph, for the intermittent -flame during which time they are to be rotated to present each surface to test, except that the framework is to be 60 inches (1524 mm) from the flame as follows: . t. the air duct outlet (see Figure 15 -2 -1), and the gas piping and Ara 3 burner are to be removed so as not to obstruct the airflow. Each 6- inch -by -6 -inch (152 mm by 152 mm) face for 30 sec- i onds. :. 15.202.4.2 Size and construction of brands. The brands to be Each 2 inch -by -6 -inch (57.2 mm by 152 mm) face for 30 sec- t c . ;_ used in these tests are to be as shown in Figure 15 -2 -3 and are to be onds. I �, constructed as follows. Prior to the test, the brands are to be condi- ;{L i t tinned in an oven at 105 °F to 120 °F (40 °C to 49 ° C) for at least Each 6- inch -by -6 -inch (152 mm by 152 mm) face again for 30 I 3 24 hours. seconds. i The Class A brand is to consist of a grid, 12 inches (305 mm) Class C brands are to be exposed to the flame for two minutes, �= d uring which time they are to be rotated to present each of the 11/2 - E 7' ?1 square and approximately 2 inches (57 mm) thick, made of 1 •• . kiln -dried Douglas fir lumber that is free from knots an d p i t ch one m inu nu te. /2 -inch (38.1 mm by 38.1 mm) faces to the flame for 1 .= one m * : - T pockets. The brand is to be made of 36 strips of lumber each t ; d" s 3 � a /4 inch by 3 / 4 inch (19.1 mm by 19.1 mm) square by 12 inches 15.202.4.4 Test conditions. •I (305 mm) long, placed in three layers of 12 strips each, with strips l ,; .1' placed /4 inch (6.4 mm) apart. These strips are to be placed at 15.202.4.4.1 Class A. A brand is to be placed on the surface of . aiE right angles to those in adjoining layers and are to be nailed, using each test deck at the location considered most vulnerable (point of Jv. > `' 1 (38.1 mm) long No. 16 gage nails, or stapled using minimum coverage over deck joint) with respect to ignition of the ttiaaj ' �- a y - ; .. No. 16 gage steel wire staples having ax /32 -inch (5.6 mm) crow deck, but in no case closer than 4 inches (102 mm) from either side ^ • £ ,? and 1 -inch (31.8 mm) legs, at each end of each strip on one face, or 12 inches (305 mm) from the top or bottom edge of the deck. e ....?.0 iRd and in a diagonal pattern as shown in Figure 15 -2 -3 on the other The brand is to be placed so that the strips in both the upper and _ M1 face. The dry weight of the finished brand is to be 2,000 grams -1- lower layers are parallel to the direction of airflow. The brand is to • !I 150 grams at the time of the test. be secured to the deck by a No. 18 B. &S. gage (0.040 inches) (1.02 f • s- mm) soft iron wire. The Class B brand is to consist of a grid, 6 inches (153 mm) - ` ,� If the roofing assembly is applied to a pine board deck, the brand L 4 i square and approximately 2 inches (57 mm) thick, made of t :: 1' ,, kiln -dried Douglas fir lumber that is free from knots and pitch ordinarily will be in the most vulnerable location when the upper ,- 4, edge of the brand is located 3 inches (76 mm) above a horizontal 3/4 a pockets. The brand is to be made of 18 strips of lumber / inch by f ,_�•; 1 t ( y 19.1 mm) square and 6 inches (153 mm) oint in the test deck. If the roofing assembly is applied to a ply- ' /4 inch 19.1 mm b J Y 7' u� long, h (19.1 in t la 19.1 m six square strips and in ch es (153 3 spaced mm) wood deck, the brand ordinarily will be in the most vulnerable lo- d'., ,' 1/4 inch (6.4 nun) apart The strips are to ea be placed at right angles cation when the brand is placed so that it is centered laterally with '`'`= to those in adjoining layers and are to ce be nailed, using to the vertical joint in the lest deck, and the upper edge of �s= iL.,' , 11 /2 -inch -long (38.1 mm) No. 16 gage nails, or stapled using No. the brand is located 3 inches (76 mm) above the horizontal joint. 4 s 1 6 gage steel wire staples having a 7 /32 -inch (5.6 mm) crown and 15.202.4.4.2 Class B. A brand is to be placed on the surface of i ,,,, <:.: 4 -inch (31.8 mm) legs, at each end of each strip on one face, and the test deck at each of the two locations considered most vulner- i : ; °q in a diagonal pattern as shown in Figure 15 -2 -3 on the other face. able (point of minimum coverage over deck joint) with respect to nri The dry weight of the finished brand is to be 500 grams ± 50 grams ignition of the deck. Each brand is to be positioned with its upper W. at the time of the test. edge 1 inches (38.1 mm) above the selected joint in the deck '� •? st � T he Class C brand is to consist of a piece of kiln -dried nonresi- boards, but in no case closer than 6 inches (152 mm) from each s' ,? nous white pine lumber that is free from knots and pitch pockets. side or 12 inches (305 mm) from the top or bottom edge of the 1 1 deck. The brands are to be placed so that the strips in both the up- i-.,` The brand is to measure 1 inches by 1 inches by 25 /3, inch • L w (38.1 mm by 38.1 mm by 19.8 mm) and a saw kerf 1 /8 inch (3.2 > per and lower layers are parallel to the direction of airflow. They ,- t,_ ;'; . '3 m) wide is to be cut across the center of both the top and bottom are to be secured to the deck by a No. 18 B. &S. gage (0.040 inch) i g ,fin °:: faces to a depth of one half the thickness of the brand, and at right (1.02 mm) soft iron wire. The second brand is not to be applied un- e',r; {_ angles to each other. The dry weight of the finished brand is to be til all burning resulting from the first brand has ceased. e • , • , '' 9 / grams ± 1 grams at the time of the test. If the roofing assembly y is applied to a pine board deck, the 3' ▪ v`ti, 15.202.4.3 I brands ordinarily will be in the most vulnerable location when the ` Ignition of brands. Before application to the test upper edge of each brand is located 3 inches (76 mm) above a hori- D ., 5 -% >- deck f the brands are to be ignited so as to burn freely in still air as zontal joint in the test deck. If the roofing assembly is applied to a ' ' } C Yl�l'+Y ,� t S described below. The flame of the gas burner used to ignite the plywood deck, the brands ordinarily will be in the most vulnerable ill : ' . rands is to essentially envelop the brands during the when they are placed so that they are centered laterally Y' . niti e process of location p )1t 4i; - . n --1- I gnition. The tem erature of the i n - - L '�; P g g flame is to be 1 630 F with respect to a vertical joint in the test deck, and the upper er edge v w : 1 `' 3-305 'i ;at )DE V 1997 UNIFORM BUILDING CODE tk l a STANDARD 15 -2 iutes . TABLE 15 -2 -A— REQUIRED TESTS AND TEST ASSEMBLIES e air and REQUIRED NUMBER OF TEST ASSEMBLIES erial �� Intermittent- Spread-of- Burning- Flymg- ? MATERIAL TO BE TESTED flame Test flame Test brand Test brand Test Ram Test Weathering Test For e in - Other than wood shakes or shingles, for installation on: xtin : ; ; . A. Combustible decks: � - 1. Class A :4 2 2 4 N A NA NA 2. Class B or C 2 2 2 NA NA NA ame tr ; ;pray • ` - B. Noncombustible decks only NA 2 NA NA NA NA T per Wood shakes and shingles: to be A. Class A ecks. B. Class B or C 3 (2 [ 3 3 (2) [5 3 ( 2) [ 6 15 fining NOTES: e fol fs NA —Test is not required. I d The number in parentheses is the number of samples from the ram test. deck 44.1 . . The number in brackets is the number of samples from the weathering test. :w '- ts are 'S•, . .il TABLE 15 - 2 - B — FLAME APPLICATION urer osed . ' p - '�" % ,,,-1, CLASS FLAME ON FLAME OFF NUMBER E (minutes) y two ,-. i,b.. A ( u ' ) (minutes) TEST CYCLES Yt o at ,;• 2 t that B 2 15 ing ; (144 7, 4 c 1 2 3 8 .,w h- ,tinted ..1, t '� zontal , ve and ,;r : us and , �": , ; . ,. j :nt be- ,,r ,4 s to be ,{ ''.- -brand .: brand 3t IN. (94 mm) HEIGHT OF VELOMETER • NOZZLE - BAFFLE TO PREVENT S ^a r BACK- FIRING UNDER CE . t x • • t TEST DECK 4 IN. (114 mm) LOCATION OF THERMOCOUPLE ` -'.te t /z IN. AIR INTRODUCED FROM OUTSIDE THE tine or = N •• t - e � y . -� �� (13 mm) D TEST ROOM BY BLOWER CONTROLLED 0 . BY RHEOSTAT ----/ or f •1 , i ;a T EST SPECIMEN � �� 0 �- r :'+ • MOUNTED ON �� ' a FRAMEWORK PITCH '� r� , : + ti r• 30 IN. AIR DUCT king or.' v ' : - ; CAN BE ADJUSTED � \ .— (762 mm) gi g: 1 13 /z IN 5 , ,�i 11/ ` w (34.3 mm ) + Jr j"rWfC' : ) t " � 52 IN. (1321 mm) JowingF4 ,`,+ 5IN. I 0 f : *:. - , (127 mm) ASBESTOS overing . „ E • CEMENT floor: , `' : 13t/z IN. 35 IN. a BOARD cm 43 IN. abr. „ Kli R. O (343 mm) (889 mm) z (1111 mm) nittent - .k' nin 4 . p ' g I t r FLOOR LEVEL CO NSTRUCTION OF ASBESTOS- / , ` . CEMENT BOARDS TO 6 IN. (152 mm) --► ests m � SIMULATE EAVES AND sustained . . p ” ;: . L CORNICE 71N. (178 mm) — ► 4 :' 9 IN. (235 mm ----1 ----1 Al ) ial shall _ ; „ ' et (2438.. ' . ---► �-- 10 IN. (260 mm) eck) fore; _ 33 IN. (838 mm) ■ Bread of :� .' +' •' . • 60 IN. (1524 mm) SPACING OF FRAMEWORK t ?i: . ' WHEN MAKING BURNING BRAND TEST :• shakes.' •>, fi r; �` t== :'. ' k- +r 4.1,. FIGURE 15 -2 -1 —FIRE TEST APPARATUS ,• . `.;.. , ;.4• 3 -307 Y ! ei 1997 UNIFORM BUILDING CODE ; STANDARD 15 -2 xx - V. Ai ms's _ —7.7 _. .rs= _ ° ;;:.'= i r ftibp�f= � , .. :- ° t fit _ k 3 ca ? =-.fi - `'s . ` a3 °ro' a s K.'�� ti` g _ ,` � " 9 E; sq- s. 'r i Eu .F,y_e. a s ' er -- v. Ach,-4- , 0 . .__. .., e . •,M L' ° •- —•c iu s : ; 1 g ' T ;; ,4; i ; s ' M vi j r t' t i - z, e l ' Fr i * •m_x` L .. ,li !+1' - E 4 kL - �' �'+ .._ _` - " )- .f r ` If c �1 }' 4 3 y ye -_,_ • — ti_ 'VI- i: --,--....., i _„,...• 4 ---.-- , -i :_,T ag. Pi i F„- .. , ??,-1,- . . . --, -,_, - -.-- --..--. - i, - -,- - = - -_ - _-..tf*-1,- , ,,' - ' - ---- - . ,_ - - - - - - ...t p --------, f , -- 7, - 1- !.'teas ;. ' µ h' 3 � S , ` _k Z ` - _ -- -- tiY* - _ • '41;4 { _ $ t w' tT+L:,., r.•lIr 4' -..? ,'__' —° •3 _ ' -:' -c 't om - } A . FIGURE 15-2-3--A, B AND C BRANDS ' all•: w !. 2 p M1S _ -'J. -,:j {.j,,� , t ✓a Mme:., 40 . r t e '. v 5 �,� , 11#,... °°°LLL s a •- v. �t Conditions of Acceptance Spread of Flame test - No lateral spread of flame for Class A. 6" maximum spread beyond impingement area, for Class B, 8" maximum spread beyond impingement area. Three test decks per material tested. Intermittent Flame test - Class A and Class B, no penetration of the test deck, no exposure of roof deck by breaking, sliding, cracking or warping of test material, no flying brands produced. Three test decks per material tested. Burning Brand test - Class A and Class B, no penetration of the test deck, no exposure of roof deck, no flying brands produced. Six test decks for Class A, three test decks for Class B. Flying Brand test - no flying, flaming or glowing brands produced. Three test decks per material tested. After the initial fire tests were successfully completed, Fire Tech Services personnel selected additional samples of the FTX pressure treated shakes and shingles and prepared test decks for the Rain tests. Rain test This test was devised to expose the test decks to severe weather conditions to explore the possibility of leaching the FR chemicals from the shakes and shingles. Six test decks of each material are placed in a test chamber at an incline of 4:12, nozzles capable of delivering 0.7 inches of water per hour are mounted at a height of 7 feet above the test decks. The test decks are exposed to 12 one -week conditioning cycles. Each cycle consists of 96 hours of water exposure followed by 72 hours of drying time at 140 degrees F. This is the equivalent of more than 800 inches of rain over the 12 -week test period. Following the 12 -week rain cycling the test decks are subjected to the Intermittent Flame, Buming Brand and Flying Brand fire tests. Two decks of each material tested are required for each of the fire tests. The same acceptance criteria were used as for the initial fire tests. Following the successful completion of the Rain test, with its associated fire tests, Fire Tech Services personnel selected FTX pressure treated cedar shakes and shingles and prepared test decks for the Weathering test. . Weathering test - this test was designed to expose the test material to actual weather conditions over a ten -year period. Fifteen test decks of each material were placed outside at an incline of 5:12, facing south. After each of one, two, three, five and ten years of exposure, three test decks of each tested material was brought indoors and conditioned until the deck lumber attained a moisture content between 8 and 12 percent. From each set of decks, one deck was subjected to the Intermittent Flame test, one to the Burning Brand test and one to the Flying Brand test. The same acceptance criteria were used as for the initial fire tests. Comments After each of the fire tests associated with the Rain testand the 1,2,3,5 and 10 -year exposures of the Weathering test, the test decks were examined and test notes and results compared with the original certification tests. There was very little in the way of physical change to the test decks and all of the test results compared favorably. All of the decks examined indicated that there was no reduction in the ability of the FTX treated shakes and shingles to resist fire even after exposure to prolonged weather conditions. All of the certification tests were passed by Chemco's FTX pressure treated cedar shakes and shingles. Fire Tech Services, in conjunction with Chemco, developed Quality Control Manuals and Procedures to assure the continued performance of the shakes and shingles. Follow -up inspections, one per'month with product sampling, and quarterly fire tests (Intermittent Flame, Burning Brand) have proven the consistency of treatment. Not one failure in over 18 years. • Due to the possibility of borderline products being certified and to the doubts of some officials regarding the Rain Test to fairly judge the redemption of the FR chemicals, an Amended Rain Test was developed. -2- CHEMCO Pressroom Page 1 of 3 1 ■�11�*.. ,. � . _` Finest rite taxdaatTirdatxtcent ForWoud Ptuduc(s .. . ,_ "` _ a :..- y , ' � ' �:� . : . . .x +r�s.yz."`. , c.vwr.,. .- .�,. .sYi4E`�: .� ' � - ,v_.. ''.w"s 'u s' '‘ ....,.... . .__ __ — '4 I— EMA1L THIS PRESSROOM - Press Releases ' Welcome to the CHEMCO PAGE TO A FRIEND Pressroom. If you're working on CHEMCO Passes Stringent Japanese Burn Test a story and we can help, please - 4 ,,‹ March 1, 2002... CHEMCO, the world leader in fire let me know by email or by :4,..! retardant products for cedar, is thrilled to announce that calling the Ferndale, Washington ,, • n 1 it has successfully passed Japan's strict burn test of its office at 360 - 366 -3500. The �� navigation bar at the left and the fire retardant Western Red Cedar siding, used in new top of this page offers helpful r home construction... ' Y' [FULL TEXT] background information on the ..xs , a k . o • company, our products, and our : = 1 ; ;4' ' e ' _ 4 market. This section will be CHEMCO Promotes Use Of Fire Retardant For Wood � *, " ' updat regularly, so check in A ' - � Roofing Products often. - ', �• ; '�, y August 1, 2001... CHEMCO, the world leader in fire C •� • retardant products for cedar, is promoting the use of -f..- . - r. 1 -1f .'4 .,; an p p g f David Plenkovich, Public wood as a safe choice for roofing material across the Relations P SSROOM US. A new web site for CHEMCO has recently come 1 • online... dplenkovich @chemco org 3 . • [FULL TEXT] z t.,.. . r = Other Site Links �": " ° Case Studies E , z 1 , i a r '� ,; .. When Building S upply Yard Goes Up In Flames, SHAKES & SHINGLES W ., ) ., , .° Fire Retardant Wood "Just Says, No" • Shake & Shingle Applications July 4 , 2002... On May 10th, 2002, a large paper and • Application Instructions cardboard fire broke out at a recycling center next door • Care &Maintenance Feedback to Webmaster to Pacific Supply in Newark, California. Flames jumped •Long -Term Fire Protection the 25 -foot gap separating the two businesses, • and NES /NER 215 Listing consuming lumber and building supplies pallet by pallet. • Wind Resistance Emergency crews responded and eventually put out the • Hail Resistance fire. The fire totally destroyed untreated wood shingles • Insulation Value and asphalt shingles, but fire retardant treated shakes • ICBO listing and shingles survived... [FULL TEXT] • CA Site Fire Marshal's listing • CA Health and Safety Code - Montana Cabin with CHEMCO- Treated Fire • Frequently Asked Questions • Warranty Retardant Cedar Shakes Survives Devastating Wildfire March 5, 2002... The summer forests of Montana are LUMBER, PLYWOOD, SIDING frequently scorched by some of the fiercest wildfires in • Exterior Lumber Applications the West. An August 14, 2001 lightning strike near • Cedar Siding Applications Whitefish Divide, north of Kalispell set in motion the • Exterior Plywood Applications . Moose Creek fire near North Fork that raged for more • Fire Protection ' than three weeks.... [FULL TEXT] • Frequently Asked Questions • Warranty Oceanside Home Saved by Fire Retardant Cedar Shakes GENERAL February 15, 2002... Wueste of Oceanside, Califomia, • Environmentally Friendly proved that prudent fire -safety steps can save urban • Material Safety Data Sheet homes from the spread of fire from an adjacent home. In •Glossary of Technical Terms the early morning hours of December 28th, 2001, Mr. • All Vi deo_Clips http: / /www.chemco.org /corp /press.html 09/18/2002 Page 3 of 3 CHEMCO Pressroom Pa Hills — Architectural West,May /June 2001 View the clips of the pressure impregnation °As" manufacturing process. Download and then play, unless you have a high -speed connection. Windows Media Player (1.8 MB) - Mac Quicktime (2.2 MB) - Higher Quality Mpeg (3.2MB). View the nine separate tests Chemco vum treated shakes and shingles must pass.. Download and then play, unless you have a high -speed connection. Windows Media Player (2.6 MB) - Mac Quicktime (3 MB) - Higher Quality Mpeg (4.5 MB). • View a homeowner discussing how O' Chemco- treated roofing helped save their home from fire, while homes around them burned down. Download and then play, unless you have a high -speed connection. Windows Media Player (1.2 MB) - Mac Quicktime (1.4 MB) - Higher Quality Mpeg (2 MB). A longer version is available for users with DSL, cable modems, or faster connections: Windows Media Player (2.7 MB) - Mac Quicktime (3.3 MB) - Higher Quality Mpeg (4.8 MB). _ CHEMCO Inc. • P.O. Box 875 • Ferndale, WA 98248 • Phone - 360.366.3500 • Fax - 360.366.3831 • httn: / /www_chemco_ori /corn/nress.html 09/18/2002