1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDecember 15, 20061SUBJECT 2375OUTLINE OF INVESTIGATIONFORHIP AND RIDGE SHINGLESIssue Number: 2DECEMBER 15, 2006Summary of TopicsThis new issue of SU 2375 is being issued through ULs electronicpub
2、lishing system to ensure format uniformity between the PDF andHTML versions of the document. No substantive changes have beenincorporated in the document.The UL Foreword is no longer located within the UL Standard. For informationconcerning the use and application of the requirements contained in th
3、isStandard, the current version of the UL Foreword is located onULStandardsInfoNet at: http:/ 2006 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDECEMBER 15, 2006SUBJECT 23752No Text on This PageUL COPYRIGHTED M
4、ATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Units of Measurement .5PERFORMANCE3 General 54 Preparation of Samples 54.1 Fire test samples .54.2 Wind test samples 65 Fire Test .76 Wind Test 86.1 Test apparatus .86.2 Test .10C
5、ONDITIONS OF ACCEPTANCE7 Fire Test 108 Wind Test .10DECEMBER 15, 2006 SUBJECT 2375 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover test methods to evaluate the fire- and wind-resistance performa
6、nce of hipand ridge shingles. The fire resistance test method portion of these requirements is intended to evaluatethe performance of hip and ridge shingles exposed to fire sources exterior to a building. The windresistance test method portion of these requirements is intended to evaluate hip and ri
7、dge shingles abilityto resist damage when subjected to winds in the Beaufort Scale No. 10 range 55-63 mph (88-101K/h).1.2 Class A hip and ridge shingles are effective against severe fire test exposures. Under suchexposures, shingles of this class are not readily flammable, afford a fairly high degre
8、e of fire protection tothe roof deck, do not sip from position, and are not expected to produce flying brands.1.3 Class B hip and ridge shingles are effective against moderate fire test exposures. Under suchexposures, shingles of this class are not readily flammable, afford a moderate degree of fire
9、 protection tothe roof deck, do not slip from position, and are not expected to produce flying brands.1.4 Class C hip and ridge shingles are effective against light fire test exposures. Under such exposures,shingles of this class are not readily flammable, afford a measurable degree of fire protecti
10、on to the roofdeck, do not slip from position, and are not expected to produce flying brands.1.5 Fire tests conducted in accordance with these requirements are intended to demonstrate theperformance of roof coverings during the types and periods of exposure involved, but are not intended todetermine
11、 the acceptability of roof coverings for use after fire.1.6 Hip and ridge shingles complying with the requirements for wind resistance are not expected towithstand the wind forces of tornadoes, cyclones, or hurricanes.1.7 Hip and ridge shingles are required to comply also with the requirements for c
12、onstruction, materialspecifications, and performance as applicable to specific types, designs, sizes, and arrangements. Allsuch applicable additional requirements are not considered to be within the scope of these requirementsfor fire and wind tests, but are included in the applicable standards cove
13、ring the material in question.1.8 A product that contains features, characteristics, components, materials, or systems new or differentfrom those covered by the requirements in this Outline, and that involves a risk of fire or of electric shockor injury to persons shall be evaluated using the approp
14、riate additional component and end-productrequirements to maintain the level of safety as originally anticipated by the intent of this Outline. A productwhose features, characteristics, components, materials, or systems conflict with specific requirements orprovisions of this Outline does not comply
15、 with this Outline. Revisions of requirements shall be proposedand adopted in conformance with the methods employed for development, revision, and implementationof this Outline.DECEMBER 15, 2006SUBJECT 23754UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMIS
16、SION FROM UL2 Units of Measurement2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.PERFORMANCE3 General3.1 Representative samples of hip and ridge shingles are to be subjected to two fire tests and two windtests.4 Preparation
17、of Samples4.1 Fire test samples4.1.1 Fire test deck construction and conditioning4.1.1.1 Representative samples of hip and ridge shingles are to be applied, as described in 4.1.2,Application of shingles, to test decks constructed as specified in 4.1.1.2.4.1.1.2 The fire test deck is to consist of pl
18、ywood fastened to trade size 2- by 4-inch nominal 1-1/2 by3-1/2 inches (38.1 by 89 mm) battens. The battens are to be placed along each side of the test deck,with the long dimension of the battens perpendicular to the plywood, leaving a 1-3/4 inch (44.4 mm)overhang of the plywood on one end. Additio
19、nal battens, perpendicular to the two battens along each sideof the deck, are to be used when required for additional support. The test deck dimensions are as follows:a) Class A shingles test deck 40 inches (1.02 m) wide by 8 feet (2.4 m) longb) Class B shingles test deck 40 inches (1.02 m) wide by
20、9 feet (2.7 m) longc) Class C shingles test deck 40 inches (1.02 m) wide by 13 feet (3.9 m) long4.1.2 Application of shingles4.1.2.1 General4.1.2.1.1 Shingles of the same composition and rating as the hip and ridge shingles to be evaluated areto be applied to the test deck in accordance with the ins
21、tallation instructions. The long dimension of theshingles is to be parallel with the long dimension of the test deck and applied symmetrically about thecenter of the deck so that headlap portions of the shingles meet at or close to the center of the deck.There is to be a 1 inch (25.4 mm) overhang at
22、 the leading edge. The hip and ridge shingles are then tobe laid flat and applied down the center of the deck. The application is to be in accordance with theinstallation instructions, such that specified exposures are maintained and, where applicable, allinterlocking mechanisms are in place.DECEMBE
23、R 15, 2006 SUBJECT 2375 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL4.2 Wind test samples4.2.1 Wind test deck construction and conditioning4.2.1.1 Representative samples of hip and ridge shingles are to be applied, as described in 4.2.2,A
24、pplication of shingles, to wind test decks constructed as specified in 4.2.1.2.4.2.1.2 The ridge test deck is to consist of plywood, tightly matched sheathing boards, or equivalentdecking material, constructed to simulate a roof ridge. The ridge test deck is to be 50 inches (1.27 m) wideand 66 inche
25、s (1.68 m) long in plan view. The ridge is to be centered on the test decks and the incline oneither side of the ridge is to be approximately 3 inches (76.2 mm) to the horizontal foot. The decks are tobe of such rigidity that they will not twist or distort during handling.4.2.2 Application of shingl
26、es4.2.2.1 General4.2.2.1.1 Shingles of the same composition and rating as the hip and ridge shingles to be evaluated arefirst applied to the test deck in accordance with the installation instructions, leaving the ridge uncovered.4.2.2.2 Self-sealing hip and ridge shingles4.2.2.2.1 Self sealing hip a
27、nd ridge shingles are to be applied to the test panel while at room temperatureof 27 8C (80 15F) and in accordance with the installation instructions. The bottom of the test panel isto remain parallel with the floor during application of the hip and ridge shingles. No adhesive other thanthe factory-
28、applied adhesive is to be used to fasten down the tabs, and no pressure is to be applied to thehip and ridge shingle tables either during or after application.4.2.2.2.2 The test panel, following preparation, is to be maintained so that the bottom of the test panelremains parallel to the floor and at
29、 room temperature.4.2.2.2.3 The panel is to be placed in the conditioning cell while the bottom of the test deck remainsparallel to the floor and at a temperature of 57 60C (135 140F) for a continuous period 16 hours.After conditioning, the test panel is to cool to room temperature while the bottom
30、of the test panel remainsparallel to the floor. The test panels are to be handled such that the shingle tabs are not disturbed andsuch that the panels are not twisted or distorted.DECEMBER 15, 2006SUBJECT 23756UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PER
31、MISSION FROM UL4.2.2.3 Interlocking hip and ridge shingles4.2.2.3.1 Interlocking hip and ridge shingles are to be applied in accordance with the installationinstructions. The hip and ridge shingles at the outer edge of the test panel are to be secured by exposednailing to simulate anchoring at the r
32、ake edges of a roof deck.4.2.2.3.2 The test panels are to be maintained with the bottom of the test deck parallel to the floor andat room temperature. Although not required for interlocking hip and ridge shingles, conditioning asdescribed in 4.2.2.2.3 is to be implemented when required to seal the s
33、hingles used on either side of theridge.5 Fire Test5.1 The fire test is to be conducted on duplicate test panels.5.2 A test deck is to be mounted on the framework at the required incline and subjected to the specifiedair current. The test deck then is to be subjected to a luminous gas flame approxim
34、ately 3 feet (0.9 m)wide at the leading edge of the deck, and gradually narrowing to a width of approximately 6 inches (150mm) at the top of the deck. Licks of flame that extend approximately an additional 1 to 2 feet (0.3 to 0.6m) are not prohibited. The gas supply is to be regulated so that the fl
35、ame, if not augmented by combustionof the roof covering, develops a temperature of 760 28C (1400 50F) for a Class A or B test, and 70428C (1300 50F) for a Class C testa. The temperature is to be determined by a No. 14 B&S gage (2.1mm2) chromel-alumel wire thermocouple located 1 inch (25.4 mm) above
36、the surface and 1/2 inch (12.7mm) toward the source of flame from the lower edge of the first board of a bare deck formed ofnoncombustible material.aIt has been found that the gas flow corresponds to a heat supply rate within the range from 21,000 to22,000 Btu per minute (369 to 387 kWh) for Class A
37、 or B samples and 18,000 to 19,000 Btu per minute(316 to 334 kWh) for Class C samples.5.3 For a Class A or B test, the gas flame is to be applied continuously for 10 minutes or until the spreadof (flame of the material being tested) permanently recedes from a point of maximum spread, whicheveris the
38、 shorter duration. For a Class C test, the gas flame is to be applied for 4 minutes and then removed.5.4 During and after the application of the test flame, the test sample is to be observed for the distanceto which flaming of the material has spread, production of flaming or glowing brands, and dis
39、placement ofportions of the test sample. The observation is to continue until the flame has permanently receded froma point of maximum spread.DECEMBER 15, 2006 SUBJECT 2375 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL6 Wind Test6.1 Test a
40、pparatus6.1.1 The essential elements of the wind-test apparatus are illustrated in Figure 6.1. The apparatusconsists of a machine capable of delivering a horizontal stream of air through a rectangular opening, 36inches (915 mm) wide and 12 inches (305 mm) high, at a velocity of 60 miles per hour (mp
41、h) (96.6 km/h).The test panel is mounted on a carriage which is capable of being adjusted to various angles incident tothe wind direction.6.1.2 The stream of air discharged is to have a flow perpendicular to the face of the discharge orifice. Thevelocity of the discharged air, as measured at the fac
42、e of the discharged orifice, at each of the 33 locationsdetermined by projecting the lines of intersection of the flow stabilizer plates, is not to vary more than 2mph (3.2 km/h) from the average of all 33 determinations when such average velocity is maintained at 60mph (96.6 km/h).6.1.3 Instrumenta
43、tion for determining velocity is to be permanently fixed at those locations found by testto indicate the average velocity over the face of the orifice.6.1.4 The carriage or mounting means for the test panels is to maintain the panels in position withoutvibration or other movement that will affect th
44、e results.This is generated text for figtxt.DECEMBER 15, 2006SUBJECT 23758UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULFigure 6.1Wind machineDECEMBER 15, 2006 SUBJECT 2375 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORD
45、ISTRIBUTION WITHOUT PERMISSION FROM UL6.2 Test6.2.1 The wind test is to be conducted on duplicate test panels. One test is to be conducted with the windapplication parallel to the ridge, and one test is to be conducted with the wind application perpendicularto the ridge. The carriage holding the tes
46、t deck is to be oriented so that the bottom of the test panel isparallel with the floor.CONDITIONS OF ACCEPTANCE7 Fire Test7.1 At no time during the Fire Test, Section 5, shall:a) Any portion of the roof covering material be blown or fall off the test deck in the form offlaming or glowing brands,b)
47、The roof deck be exposed by breaking, sliding, cracking or warping of the roof covering,except for roof coverings restricted to use over a noncombustible deck, orc) Portions of the roof deck fall away in the form of glowing particles.With respect to (b), the deck is exposed whenever any portion of t
48、he deck is visible and without cover fromthe roof covering material or its residue. The portion of deck directly underneath burning brands andcracks or fissures, 1/8 inch (3.17 mm) wide or less, is excluded from this requirement.7.2 For the purpose of the requirements of 7.1, any piece of roof cover
49、ing that continues to glow or flameupon landing on the test room floor is a glowing or flaming brand, respectively.7.3 The flaming of the material shall not have spread beyond 6 feet (1.8 m) for Class A, 8 feet (2.4 m) forClass B, and 13 feet (3.9 m) ( the top of the deck) for Class C. There shall have been no significant lateralspread of flame from the path directly exposed to the test flame.8 Wind Test8.1 At no time during a 2 hour period of exposure to 60 mph (96.6 km/h) wind on any test panel shal
