ASTM D3161-2008a Standard Test Method for Wind-Resistance of Asphalt Shingles (Fan-Induced Method).pdf

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1、Designation: D 3161 08aStandard 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 re

2、vision. 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 e

3、valuating thewind resistance of asphalt shingles that results from theshingles rigidity (with or without contribution from sealant) ormechanical interlocking (with or without contribution fromsealant) or any combination thereof. The shingles are appliedto a test panel in accordance with the manufact

4、urers instruc-tions and tested at a 2:12 (17 %) slope, or at the lowest slopepermitted by those instructions.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 address all of thesafety con

5、cerns, 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. Referenced Documents2.1 ASTM Standards:2D 1079 Terminology Relating to Roofing

6、 and Waterproof-ing3. Terminology3.1 DefinitionsFor definitions of terms used in this testmethod, refer to Terminology D 1079.4. Classes of Shingles4.1 Shingles are of three classes:4.1.1 Class APass at a test velocity of 97 km/h (60 mph).4.1.2 Class DPass at a test velocity of 145 km/h (90mph).4.1.

7、3 Class FPass at a test velocity of 177 km/h (110mph).5. Significance and Use5.1 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 conditions are beyond the

8、 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.5.2 Many factors influence the wind resistance of shi

9、nglesin the field; for example, temperature, time, roof slope,contamination by dirt and debris, and fasteners that aremisaligned or under-driven. It is beyond the scope of this testmethod to address all of these influences. This test method isdesigned to evaluate the wind resistance of asphalt shing

10、les asdescribed in the scope when representative samples are appliedto test panels in accordance with the manufacturers instruc-tions and conditioned as specified before testing.6. Apparatus6.1 Test Machine, capable of delivering a horizontal streamof air through a rectangular opening 914 mm (36 in.

11、) wide and305 mm (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

12、measured at aminimum 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 angle

13、s incident to thewind direction.6.2 Timer, capable of reading to the nearest minute.1This test method is under the jurisdiction ofASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.02 onPrepared Roofings, Shingles and Siding Materials.Current edition

14、approved Feb. 1, 2008. Published March 2008. Originallyapproved in 1972. Last previous edition approved in 2008 as D 3161 08.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information,

15、refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.3 Mechanical Circulation Conditioning Cell or Room,having forced circulation of air capable of receiving a 1.27-m(50-in

16、.) wide by 1.68-m (66-in.) long, or larger test panel on aslope of 2:12 (17 %) and of maintaining a uniform temperatureof 57 to 60C (135 to 140F).7. Test Samples7.1 The test panels shall be of plywood, tightly matchedsheathing boards, or other suitable decking material and notless than 1.27 by 1.68

17、m (50 by 66 in.) in size. They are to beof such rigidity that they will not twist or distort with normalhandling, or vibrate from the wind velocity during the test.7.2 Apply shingles to duplicate panels, parallel to the shortdimension of the panel, in the normal manner recommended bythe manufacturer

18、. Use roofing nails, properly positioned inaccordance with the manufacturers instructions, to fasten eachshingle. Do not apply pressure to the shingle tabs either duringor after application.7.3 Apply lock-type shingles to an additional two panels,parallel to the short dimension of the panel, in acco

19、rdance withthe manufacturers instructions.7.4 Secure the shingles at the outer edge of each test panelby exposed nailing to simulate anchoring at the rake edges ofa roof deck.7.5 Control the temperature at 27 6 8C (80 6 15F) andmaintain the slope of the panel at 2:12 (17 %) during applica-tion of th

20、e shingles.8. Conditioning of Shingle Test Panels8.1 Maintain the test panels at a slope of 2:12 (17 %) and ata temperature of 27 6 8C (80 6 15F) until beginning heatconditioning.8.2 Place the test panels in the conditioning cell or room ona slope of 2:12 (17 %) and maintain at a temperature of 57 t

21、o60C (135 to 140F) for a continuous period of 16 h.8.3 After completion 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 2:12 (17 %).8.4 Exercise care to avoid pressure on, or damage to,shingle tabs by any twisting or

22、 distortion of the test panels inhandling.9. Test Procedure9.1 Location of the Test PanelInstall the panel on the testcarriage and accurately adjust it in relation to the duct so thatthe exposed edge of the target course will be on the same levelas the lower edge of the duct orifice at a horizontal

23、distance of178 6 1mm(76116 in.). The target course shall be the thirdcourse up from the bottom of the panel. The test slope shall be2:12 (17 %) for self-sealing shingles, and at the lowest sloperecommended by the manufacturer for lock-type shingles.9.1.1 Test a minimum of two panels for self-sealing

24、shingles.9.1.2 Since the design of lock-type shingle makes it difficultto determine the most critical angle of wind direction, conductthe test at a minimum of three different angles using a separatepanel for each test (head-on, with the bottom of the targetcourse parallel to and 178 mm (7 in.) away

25、from the machineorifice; and with the panel rotated 30 and 60 from the head-onposition, with the bottom corner of the third-course tab nearestthe duct being 178 mm (7 in.) away from and in the samehorizontal plane as the bottom of the machine orifice). Testanother panel at the position judged to be

26、most critical on thebasis of the first three tests.9.2 Performing the TestMaintain the ambient temperatureat 24 6 3C (75 6 5F) during the tests.9.2.1 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, n

27、ot 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 thetest, and shall be maintained continuously for 2 h, or until suchlesser time as a failure occurs.9.2.2 During the test, station an observer where he can notea

28、ny 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 any failure of adhesive, with its time ofoccurrence.9.2.3 If failure occurs during the test, stop the air flow andrecord the elapsed time. The end point for

29、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 lock 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 itsel

30、f during the test.NOTE 1It is not prohibited to use this test method with different testvelocities and different time intervals of stop-and-go 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 be

31、foretesting and it is not prohibited to use different criteria for failure than thosepresented in 9.2.3. It is also not prohibited to interpret the test results onunsealed shingles differently than as described in Section 10.10. Interpretation of Results10.1 Any assembly that restrains full shingle

32、tabs fromlifting, or locking ears from tearing loose or disengaging, shallbe considered as having passed this test.10.2 Any assembly that does not 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

33、bendback on itself during the test, shall be considered as havingfailed this test.11. Report11.1 The report shall include the following information foreach specimen that passes:11.1.1 The velocity maintained during the test, the total timeof duration, and the corresponding class.11.2 The report shal

34、l include the following information foreach specimen that fails:11.2.1 The elapsed time and velocity at which any fullshingle tab (or full shingle if single-tab) lifts so as to bendbeyond perpendicular to the plane of the assembly, or whereany locking feature either tears loose or disengages from it

35、slocking position.11.2.2 The mode of failure.D 3161 08a211.3 The report shall include photographs taken immedi-ately before shutting off the wind for each specimen tested.12. Precision and Bias12.1 No statement is made about either precision or bias ofthis test method, since the result merely states

36、 whether there isconformance to the criteria for success specified in the proce-dure.13. Keywords13.1 fan-induced wind; interlocking; rigidity; roofing; seal-ant; shingles; waterproofing; wind resistanceASTM International takes no position respecting the validity of any patent rights asserted in con

37、nection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the respon

38、sible 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 additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful

39、consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 1

40、00 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).D 3161 08a3