1、Designation: D 3161 06Standard Test Method forWind-Resistance of Asphalt Shingles (Fan-Induced Method)1This standard is issued under the fixed designation D 3161; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This test method covers the procedure for te
3、sting thewind resistance of asphalt shingles when applied to a test deckon low slopes in accordance with the manufacturers instruc-tions at the most susceptible slope for wind damage of 2 in. in12 in. permitted by those instructions. It is used to benchmarkthe blow-off resistance of sealed and inter
4、locked shingles at agiven wind velocity, but may be used to test unsealed or sealedshingles at other wind velocities as is applicable.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 This standard does not purport to add
5、ress all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Type and Classes of Shingles2.1 Shingles are of two t
6、ypes:2.1.1 Type IShingles with a factory-applied adhesive(self-sealing shingles).2.1.2 Type IIShingles of the lock type, with mechanicallyinterlocking tabs or ears.2.2 Shingles are of three classes:2.2.1 Class APass at a test velocity of 97 km/h (60 mph).2.2.2 Class DPass at a test velocity of 145 k
7、m/h (90mph).2.2.3 Class FPass at a test velocity of 177 km/h (110mph).3. Significance and Use3.1 Most asphalt shingles that have demonstrated windresistance by this test have also performed well in use. Naturalwind conditions differ with respect to intensity, duration, andturbulence; these condition
8、s are beyond the means of this testto simulate. The results of this test do not directly correlate towind speeds experienced in service, and no accommodation ismade in this test method for building height, building exposurecategory, or building importance factor.3.2 Many factors influence the sealin
9、g characteristics ofshingles in the field; for example, temperature, time, roof slope,contamination by dirt and debris, and fasteners that aremisaligned or under-driven and interfere with sealing. It isbeyond the scope of this test method to address all of theseinfluences. When testing shingles with
10、 sealant, this test methodis designed to determine the wind resistance when representa-tive samples of shingles are sealed under defined conditionsbefore testing.4. Apparatus4.1 Test Machine, capable of delivering a horizontal streamof air through a rectangular opening 914 mm (36 in.) wide and305 mm
11、 (12 in.) high at a velocity not less than 97 km/h (60mph). At a velocity of not less than 177 km/h (110 mph), it ispermissible to add a duct section to the equipment to lower theheight of the rectangular opening to 152 mm (6 in.). The testvelocity shall not vary more than 65 mph as measured at amin
12、imum of three evenly spaced locations across the orifice.The machine shall be equipped with an adjustable stand toreceive a test panel and be adapted to setting the test panel atany desired slope, at any horizontal distance from the loweredge of the duct opening, and at various angles incident to th
13、ewind direction.4.2 Timer, capable of reading to the nearest minute.4.3 Mechanical Circulation Conditioning Cell or Room, forself-sealing shingles, having forced circulation of air capableof receiving a 1.27-m (50-in.) wide by 1.68-m (66-in.) long, orlarger test panel on a slope of 2 in. rise per fo
14、ot (17 % slope)and of maintaining a uniform temperature of 57 to 60C (135to 140F).5. Test Samples5.1 The test panels shall be of plywood, tightly matchedsheathing boards, or other suitable decking material and notless than 1.27 by 1.68 m (50 by 66 in.) in size. They are to be1This test method is und
15、er the jurisdiction of ASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.02 onPrepared Roofings, Shingles, and Siding Materials.Current edition approved Aug. 1, 2006. Published August 2006. Originallyapproved in 1972. Last previous edition approved i
16、n 2005 as D 3161 05.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.of such rigidity that they will not twist or distort with normalhandling, or vibrate from the wind velocity during the test.5.2 Apply self-sealing shingles to duplic
17、ate panels, parallelto the short dimension of the panel, in the normal mannerrecommended by the manufacturer. Use roofing nails, properlypositioned in accordance with the manufacturers instructions,to fasten each shingle, and no cement other than the factory-applied adhesive shall be used to fasten
18、down the tabs. Do notapply pressure to the shingle tabs either during or afterapplication.5.3 Apply lock-type shingles to at least four panels, parallelto the short dimension of the panel, in accordance with themanufacturers instructions. Secure the shingles at the outeredge of the test panel by exp
19、osed nailing to simulate anchoringat the rake edges of a roof deck.5.4 Control the temperature at 27 6 8C (80 6 15F) andmaintain the slope of the panel at 2 in./ft (17 % slope) duringapplication of the shingles.6. Conditioning of Self-Sealing Shingle Test Decks6.1 Maintain the test panels at a slope
20、 of 2 in./ft (17 %slope) and at a temperature of 27 6 8C (80 6 15F) untilbeginning heat conditioning.6.2 Place the test panels in the conditioning cell or room ona slope of 2 in./ft (17 % slope) and maintain at a temperatureof 57 to 60C (135 to 140F) for a continuous period of 16 h.6.3 After complet
21、ion of the conditioning period, allow thetest panels to come to room temperature 27 6 8C (80 6 15F)while being maintained at a slope of 2 in./ft (17 % slope).6.4 Exercise care to avoid pressure on shingle tabs by anytwisting or distortion of the test panels in handling.7. Conditioning of Lock-Shingl
22、e Test Decks7.1 Maintain the test panels at a temperature of 27 6 8C(80 6 15F) before conduct of the wind test. No furtherconditioning of these panels is required.8. Test Procedure8.1 Location of the Test PanelInstall the panel on the testcarriage and accurately adjust it in relation to the duct so
23、thatthe exposed edge of the target course will be on the same levelas the lower edge of the duct orifice at a horizontal distance of178 6 1mm(76116 in.). The target course shall be the thirdcourse up from the bottom of the panel. The test incline shallbe 2 in. to the horizontal foot (17 % slope) for
24、 self-sealingshingles, and at the lowest incline recommended by themanufacturer for lock-type shingles.8.1.1 Test a minimum of two panels for self-sealingshingles.8.1.2 Since the design of lock-type shingle may make itdifficult to determine the most critical angle of wind direction,conduct the test
25、at a minimum of three different angles using aseparate panel for each test (head-on, with the bottom of thetarget course parallel to and 178 mm (7 in.) away from themachine orifice; and with the panel rotated 30 and 60 from thehead-on position, with the bottom corner of the third-course tabnearest t
26、he duct being 178 mm (7 in.) away from and in thesame horizontal plane as the bottom of the machine orifice).Test another panel at the position judged to be most critical onthe basis of the first three tests.8.2 Performing the TestMaintain the ambient temperatureat 24 6 3C (75 6 5F) during the tests
27、.8.2.1 As soon as the panel is set in position, start the fan,adjust the speed to produce a velocity, as previously agreedbetween the buyer and the seller, not less than 97 km/h (60mph) and not greater than 177 km/h (110 mph). The testvelocity shall not vary more than 65 % at the orifice during thet
28、est, and shall be maintained continuously for 2 h, or until suchlesser time as a failure occurs.8.2.2 During the test, station an observer where he can noteany lifting of shingle tabs. He shall record any damage to a fullshingle or the disengaging of a locking ear or tab, or a shingletab, including
29、any failure of adhesive, with its time ofoccurrence.8.2.3 If failure occurs during the test, stop the air flow andrecord the elapsed time. The end point for failure shall be takenas the time at which the sealing feature fails to restrain one ormore full shingle tabs, or a locking ear or tab of a loc
30、k shingletears loose or disengages from its locking position. In addition,no free portion of a shingle shall lift so as to stand upright orbend back on itself during the test.NOTE 1It is not prohibited to use this test method with different testvelocities and different time intervals of stop-and-go
31、frequencies to doresearch on the performance of shingles in an unsealed condition. If thisis done, shingles do not have to be conditioned at 140F for 16 h beforetesting and it is not prohibited to use different criteria for failure than thosepresented in 8.2.3. It is also not prohibited to interpret
32、 the test results onunsealed shingles differently than as described in Section 9.9. Interpretation of Results9.1 Any assembly that restrains full shingle tabs fromlifting, or locking ears from tearing loose or disengaging, shallbe considered as having passed this test.9.2 Any assembly that does not
33、restrain full shingle tabs orthat has locking ears that tear loose or disengage, or that hasany free portion of a shingle lift so as to stand upright or bendback on itself during the test, shall be considered as havingfailed this test.10. Report10.1 The report shall include the following information
34、 foreach specimen that passes:10.1.1 The velocity maintained during the test, the total timeof duration, and the corresponding class.10.2 The report shall include the following information foreach specimen that fails:10.2.1 The elapsed time and velocity at which the sealingfeature fails to restrain
35、one or more full shingle tabs, or alocking ear or tab of a lock shingle tears loose or disengagesfrom its locking position.10.2.2 The mode of failure shall be reported in accordancewith 9.2.10.3 The report shall include photographs taken immedi-ately before shutting off the wind for each specimen te
36、sted.D316106211. Precision and Bias11.1 No statement is made about either precision or bias ofthis test method, since the result merely states whether there isconformance to the criteria for success specified in the proce-dure.12. Keywords12.1 fan-induced wind; roofing; shingles; waterproofing;wind
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38、ights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for addition
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40、TM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D3161063
