1、Designation: D3679 11D3679 13 An American National StandardStandard Specification forRigid Poly(Vinyl Chloride) (PVC) Siding1This standard is issued under the fixed designation D3679; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification establishes requirements and test methods for the materials, dimensions, warp, shrink
3、age, impact strength,expansion, appearance, and windload resistance of extruded single-wall siding manufactured from rigid (unplasticized) PVCcompound. Methods of indicating compliance with this specification are also provided.1.2 The use PVC recycled plastic in this product shall be in accordance w
4、ith the requirements in Section 4.1.3 Rigid (unplasticized) PVC soffit is covered in Specification D4477.1.4 Siding produced to this specification shall be installed in accordance with Practice D4756. Reference shall also be made tothe manufacturers installation instructions for the specific product
5、 to be installed.NOTE 1Information with regard to siding maintenance shall be obtained from the manufacturer.1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and ar
6、e not considered standard.1.6 The following precautionary caveat pertains to the test method portion only, Section 6, of this specification:This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of thisstandard to es
7、tablish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.NOTE 2There is no known ISO equivalent to this standard.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD635 Test Method for Rate of Bu
8、rning and/or Extent and Time of Burning of Plastics in a Horizontal PositionD696 Test Method for Coefficient of Linear Thermal Expansion of Plastics Between 30C and 30C with a Vitreous SilicaDilatometerD883 Terminology Relating to PlasticsD1042 Test Method for Linear Dimensional Changes of Plastics
9、Caused by Exposure to Heat and MoistureD1435 Practice for Outdoor Weathering of PlasticsD1600 Terminology for Abbreviated Terms Relating to PlasticsD2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color CoordinatesD2457 Test Method for Specular Gl
10、oss of Plastic Films and Solid PlasticsD3892 Practice for Packaging/Packing of PlasticsD4226 Test Methods for Impact Resistance of Rigid Poly(Vinyl Chloride) (PVC) Building ProductsD4477 Specification for Rigid (Unplasticized) Poly(Vinyl Chloride) (PVC) SoffitD4756 Practice for Installation of Rigid
11、 Poly(Vinyl Chloride) (PVC) Siding and SoffitD5033 Guide for Development of ASTM Standards Relating to Recycling and Use of Recycled Plastics (Withdrawn 2007)3D5206 Test Method for Windload Resistance of Rigid Plastic SidingD5947 Test Methods for Physical Dimensions of Solid Plastics SpecimensE631 T
12、erminology of Building Constructions1 This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.24 on Plastic Building Products.Current edition approved Sept. 1, 2011Nov. 1, 2013. Published September 2011November 2013. Origina
13、lly approved in 1979. Last previous edition approved in 20092011as D3679 09a.D3679 11. DOI: 10.1520/D3679-11.10.1520/D3679-13.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informatio
14、n, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to
15、 the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summa
16、ry of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E1753 Practice for Use of Qualitative Chemical Spot Test Kits for Detection of Lead in Dry Paint FilmsG147 Practice for Condition
17、ing and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests2.2 ASCE Standard:ASCE 7-02 Minimum Design Loads for Buildings and Other Structures43. Terminology3.1 Definitions are in accordance with Terminologies D883, E631, and D1600, unless otherwise specified.3.2 Definition
18、s of Terms Specific to This Standard:3.2.1 center-pinningan installation technique in which the siding panel is fastened tightly through the nail slot at the centerlength of the panel, in order to cause thermal expansion and contraction to occur equally in both directions from the center.3.2.2 heavi
19、ly textured sidingin this standard, any vinyl siding using separate postextrusion processing to produce a texturedsurface.3.2.2.1 DiscussionPost-extrusion-forming does not include embossing of the surface or forming of the faces of the profile, but does include suchprocesses as heat forming, vacuum
20、forming and compression molding applied to the surface after the profile is extruded.3.2.3 nominalthe value that a manufacturer consistently uses to represent a specific property or dimension of a vinyl sidingproduct in public claims including, but not limited to, product literature, advertisements,
21、 quotations, and certificates ofconformance.3.2.4 process average thicknessthe rolling, arithmetic mean of average specimen thicknesses measured according to 6.5 fora specific product during all productions runs for the most recent six month period.3.2.5 temperate northern climatein weather testing,
22、 a North American metropolitan area testing site located within 73 to100W longitude and 37 to 45N latitude.3.2.6 vinyl sidinga shaped material, made principally from rigid poly(vinyl chloride) (PVC), that is used to clad exterior wallsof buildings.3.2.6.1 DiscussionAny exception to a homogeneous rig
23、id PVC compound is present in a coextruded or laminated capstock.4. Materials and Manufacture4.1 The siding shall be made of one or more layers of poly(vinyl chloride) (PVC) compound.Any layers of materials other thanpoly (vinyl chloride) (PVC) compound shall be kept to less than 20% by volume.4.2 W
24、here rigid PVC recycled plastic as defined in Guide D5033 is used, the siding containing the PVC recycled plastic shallmeet all of the requirements of Section 3, Terminology; Section 4, Materials and Manufacture; and Section 5, PhysicalRequirements.4.3 The poly(vinyl chloride) siding material, when
25、tested in accordance with Test Method D635, shall not exceed an averageextent of burn of 4 in. (100 mm), with an average time of burn not to exceed 10 s. A minimum sample thickness of 0.035 in. (0.9mm) is required. (WarningThe flammability testing data, conclusions, and recommendations of Test Metho
26、d D635 relatedsolely to the measurement and description of properties for classification of the poly(vinyl chloride) siding material in responseto flame under controlled laboratory conditions and shall not be used for the description or appraisal of the fire hazard of vinylsiding under actual fire c
27、onditions.)4.4 The PVC compound when extruded into siding shall maintain uniform color and be free of any visual surface or structuralchanges, such as peeling, chipping, cracking, flaking, or pitting.4.5 The PVC compound shall be compounded so as to provide the heat stability and weather exposure st
28、ability required for thesiding market application.4.6 PVC siding shall not contain elemental lead (Pb) or compounds of that material other than traces incidental to raw materialsor the manufacturing process. This limitation applies to both PVC substrate and to any cap or film material. Compliance wi
29、th thisrequirement shall be demonstrated by one of the methods in 6.164 Available from American Society of Civil Engineers (ASCE), 1801 Alexander Bell Dr., Reston, VA 20191, http:/www.asce.org.D3679 1325. Physical Requirements5.1 Length and WidthThe nominal length and width of the siding shall be as
30、 agreed upon between the purchaser and the seller.The actual length shall not be less than 14 in. (6.4 mm) of the nominal length and the actual width shall be within 6116 in. (1.6mm) of the nominal width when measured in accordance with 6.3 and 6.4.5.2 ThicknessThese Except for heavily textured sidi
31、ng, these requirements pertain only to measurements of the portions ofthe siding that are exposed after installation of the panel, measured in accordance with the procedure in 6.5. For heavily texturedsiding, these requirements apply to the portion of the siding selected for measurement in accordanc
32、e with 6.5. The averagethickness of each specimen shall be no less than 0.035 in. No individual measurement shall be thinner than 0.003 in. below thenominal thickness. The process average thickness as defined in 3.2.33.2.4 shall be no thinner than 0.001 in. below the nominalthickness.5.3 CamberAfull
33、 length of siding (typically 10 or 12 ft (3.05 or 3.61 m) shall not have a camber greater than 18 in. (3.2 mm)when measured in accordance with 6.6.5.4 Heat ShrinkageThe average heat shrinkage shall not exceed 3.0 % when determined by the method described in 6.7.5.5 Impact ResistanceSiding shall have
34、 a minimum impact strength of 60 in.lbf (6.78 J) when tested in accordance with 6.8.5.6 Coeffcient of Linear ExpansionThe siding shall have a coefficient of linear expansion not greater than 4.5 by 105in./in./F (8.1 by 105 mm/mm/C) when tested in accordance with 6.9.5.7 GlossThe gloss of smooth and
35、embossed siding shall be uniform across the exposed surface. The average of all readingsfor a panel determined in 6.11.2.5 shall not differ from the manufacturers specified gloss value more than the permitted variationin Table 1, and each individual reading shall not vary more than 10 points from th
36、e average. Gloss of smooth and embossed sidingshall be tested in accordance with 6.11.TABLE 1Manufacturers SpecifiedGloss ValuePermitted differencefromMfg. Spec. GlossValueLess than or equal to 35 8Greater than 35 105.8 Surface DistortionThe siding shall be free of bulges, waves, and ripples when te
37、sted to a minimum temperature of 120F(49C) in accordance with the procedure in 6.12. This distortion is called “oil-canning.”5.9 ColorThe color of the siding shall be within the defined color space parameters for the specific color agreed upon betweenthe purchaser and the manufacturer. The color spe
38、cified shall be uniform on the surface of the siding panels, except in the caseof multicolored woodgrain panels.5.9.1 Uniformity of ColorWhen tested in accordance with 6.13, the total color change, E, between a production specimenand the appropriate reference specimen or agreed-upon color coordinate
39、s shall not vary by more than 1.5, and the chromaticcoordinates thereof shall not change by more than 6aH = 1.0 and 6bH = 1.0.5.10 Weathering:5.10.1 The siding shall maintain a uniform color and be free of any visual surface or structural changes such as peeling,chipping, cracking, flaking, and pitt
40、ing when tested in accordance with 6.10.NOTE 3Weathering-conformance-testing requirements are to reflect performance of a “typical” extrusion siding profile representing a specific colorof PVC compound and a specific extrusion technology. In no case is there an implied requirement for testing all th
41、e various shaped and sized sidingprofiles produced in this color. The lengthy outdoor weatherability testing for new products may be performed concurrently with market developmentand sales of siding to existing markets. Completion of weatherability testing prior to marketing of the product is not re
42、quired.5.11 Windload ResistanceThe siding panel(s) shall be able to withstand a minimum static test pressure of 15.73 lbf/ft2 (753Pa) when tested in accordance with 6.14.5.11.1 The static test pressure of 15.73 lbf/ft2 (753 Pa) was established to withstand structural loading conditions that occur in
43、110 mph (177 km/h) wind-zone areas for elevations of 30 ft (9.1 m) and less in exposure category B, and is equivalent to 29.12lbf/ft2 (1394 Pa) negative design pressure.5.11.1.1 The design-pressure values can be negative (suction loads) or positive. The negative values are the largest in magnitudean
44、d are the values used in this specification.NOTE 4In that the siding is being tested as a weather-resistant exterior product applied to an existing exterior structural wall, forces (negative)working to pull the siding off the wall, fasteners, or disengage locks will be the most important criteria fo
45、r testing. Positive wind forces test the integrityof the total wall sections, and do not provide a measure of the performance of the siding.5.11.2 Refer to AnnexA1 for an explanation as to how the 29.12 lbf/ft2 (1394 Pa) negative design pressure was established, andfor applications where the effecti
46、ve negative design pressure as specified in ASCE 7-02 is greater than 29.12 lbf/ft2 (1394 Pa) (forexample, wind-zone areas greater than 110 mph (177 km/h) or elevations above 30 ft (9.1 m), or exposures other than exposurecategory B).D3679 1335.12 Nail Slot Allowance for Thermal ExpansionFor siding
47、panels utilizing nail slots to allow for thermal expansion andcontraction, the nail slot shall be sized to allow for the expected range of expansion and contraction over a range of 100F.Compliance with this requirement shall be demonstrated either by the test method in 6.15 or by sizing of the nail
48、slots accordingto the specifications in the following sections. The instrument used shall be capable of measuring to the nearest 0.01 in. Themanufacturing tolerance shall not exceed -0.030 in. inch.5.12.1 For panels shorter than 6 ft (1829 mm) in length, the minimum nail slot width shall be 38 in. (
49、11.4 mm).5.12.2 For panels 6 ft (1829 mm) in length or longer the minimum nail slot width shall be determined according to the followingformula. The minimum width shall be the width resulting from application of the formula, rounded to the next lower quarter-inch.Regardless of the results of the calculation, the minimum nail slot width for panels 6 feet or longer shall be 1 inin. (25.4 mm).WS5Pc 33100 F 3L!1Tc (1)Where:WS = Minimum width of nail slot, in.Pc = Center-pinning coefficient: 1 if manufacturers instructions re
