ASTM D3679-99

Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding

SCOPE
1.1 This specification establishes requirements and test methods for the materials, dimensions, warp, shrinkage, impact strength, expansion, appearance, and windload resistance of extruded single-wall siding manufactured from rigid (unplasticized) PVC compound. Methods of indicating compliance with this specification are also provided.
1.2 Rigid PVC recycled plastic may be used in this product in accordance with the requirements in Section 4.
1.3 Rigid (unplasticized) PVC soffit is covered in Specification D 4477.
1.4 Siding produced to this specification shall be installed in accordance with Practice D 4756. Reference shall also be made to the manufacturer's installation instructions for the specific product to be installed.
Note 1—Information 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 the standard. The SI units given in parentheses are for information purposes only.
1.6 The following precautionary caveat pertains to the test method portion only, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 2—There are no ISO standards covering the primary subject matter of this specification.

General Information

• Status: Historical
• Publication Date: 09-Mar-2002
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.24 - Plastic Building Products

Relations

• Replaced By: ASTM D3679-01 - Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding
• Effective Date: 10-Mar-2002
• Referred By: ASTM D7254-21 - Standard Specification for Polypropylene (PP) Siding
• Effective Date: 10-Mar-2002
• Referred By: ASTM D2457-21 - Standard Test Method for Specular Gloss of Plastic Films and Solid Plastics
• Effective Date: 10-Mar-2002
• Referred By: ASTM D7445-18 - Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding with Foam Plastic Backing (Backed Vinyl Siding)
• Effective Date: 10-Mar-2002
• Referred By: ASTM E2266-22 - Standard Guide for Design and Construction of Low-Rise Frame Building Wall Systems to Resist Water Intrusion
• Effective Date: 10-Mar-2002
• Referred By: ASTM D4803-18 - Standard Test Method for Predicting Heat Buildup in PVC Building Products
• Effective Date: 10-Mar-2002
• Referred By: ASTM D8484-23 - Standard Specification for Plastic Lumber Materials and Wood-Plastic Composite Materials Used as Exterior Wall Coverings
• Effective Date: 10-Mar-2002
• Referred By: ASTM D7793-21 - Standard Specification for Insulated Vinyl Siding
• Effective Date: 10-Mar-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3679 – 99 An American National Standard
Standard Specification for
Rigid Poly(Vinyl Chloride) (PVC) Siding
This standard is issued under the fixed designation D 3679; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope * 2. Referenced Documents
1.1 This specification establishes requirements and test 2.1 ASTM Standards:
methods for the materials, dimensions, warp, shrinkage, impact D 256 Test Methods for Impact Resistance of Plastics and
strength, expansion, appearance, and windload resistance of Electrical Insulating Materials
extruded single-wall siding manufactured from rigid (unplas- D 374 Test Methods for Thickness of Solid Electrical Insu-
ticized) PVC compound. Methods of indicating compliance lation
with this specification are also provided. D 523 Test Method for Specular Gloss
1.2 Rigid PVC recycled plastic may be used in this product D 618 Practice for Conditioning Plastics and Electrical
in accordance with the requirements in Section 4. Insulating Materials for Testing
1.3 Nonmandatory color-hold guidelines are provided in D 635 Test Method for Rate of Burning and/or Extent and
Appendix X1 for manufacturer’s product development and Time of Burning of Self-Supporting Plastics in a Horizon-
quality performance use only. tal Position
1.4 Rigid (unplasticized) PVC soffit is covered in Specifi- D 696 Test Method for Coefficient of Linear Expansion of
cation D 4477. Plastics
1.5 Siding produced to this specification shall be installed in D 883 Terminology Relating to Plastics
accordance with Practice D 4756. Reference shall also be made D 1042 Test Method for Linear Dimensional Changes of
to the manufacturer’s installation instructions for the specific Plastic
product to be installed. D 1435 Practice for Outdoor Weathering of Plastics
D 1600 Terminology for Abbreviated Terms Relating to
NOTE 1—Information with regard to siding maintenance shall be
Plastics
obtained from the manufacturer.
D 1898 Practice for Sampling of Plastics
NOTE 2—Siding color-hold guidelines are for dark gray-blue, light-gray
D 2244 Test Method for Calculation of Color Differences
blue, green, dark beige, light beige, gold, yellow, white, and gray regions.
Additional colors will be added and color-hold guidelines refined as
from Instrumentally Measured Color Coordinates
weathering program data is developed.
D 3892 Practice for Packaging/Packing of Plastics
D 4216 Specification for Rigid Poly(Vinyl Chloride) (PVC)
1.6 The values stated in inch-pound units are to be regarded
and Related Plastic Building Product Compounds
as the standard. The SI units given in parentheses are for
D 4226 Test Methods for Impact Resistance of Rigid Poly-
information purposes only.
(Vinyl Chloride) (PVC) Building Products
1.7 The following precautionary caveat pertains to the test
D 4477 Specification for Rigid Poly(Vinyl Chloride) (PVC)
method portion only, Section 6, of this specification: This
Soffit
standard does not purport to address all of the safety concerns,
D 4756 Practice for the Installation of Poly(Vinyl Chloride)
if any, associated with its use. It is the responsibility of the user
(PVC) Siding and Soffit
of this standard to establish appropriate safety and health
D 5033 Guide for the Development of Standards Relating to
practices and determine the applicability of regulatory limita-
the Proper Use of Recycled Plastics
tions prior to use.
D 5206 Test Method for the Windload Resistance of Rigid
NOTE 3—There are no ISO standards covering the primary subject
Poly(Vinyl Chloride) (PVC) Siding
matter of this specification.
E 631 Terminology of Building Construction
E 805 Practice for Identification of Instrumental Methods of
Color or Color-Difference Measurement of Materials
2.2 ASCE Standard:
This specification is under the jurisdiction of ASTM Committee D-20 on
Plastics and is the direct responsibility of Subcommittee D20.24 on Plastic Building
Products.
Current edition approved November 10, 1999. Published March 2000. Originally
published as D 3679 – 79. Last previous edition D 3679 – 96a. Annual Book of ASTM Standards, Vol 08.01.
2 4
Refer to ASTM Research Report RR:D20-1144. Available from ASTM Annual Book of ASTM Standards, Vol 08.03.
Headquarters. Annual Book of ASTM Standards, Vol 08.04.
Annual Book of ASTM Standards, Vol 04.07.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 3679
ASCE 7-88 Minimum Design Loads for Buildings and requirements for Class 1, 2, or 3 (see Table 1).
Other Structures 4.2 Rigid PVC recycled plastic, as defined in Guide D 5033,
may be used in this product if all the requirements in the
3. Terminology
sections on Terminology (Section 3), on Materials and Manu-
3.1 Definitions are in accordance with Terminologies
facture (Section 4), and on Physical Requirements (Section 5)
D 883, E 631, and D 1600, unless otherwise specified.
are met by the siding containing rigid PVC recycled plastic.
3.2 Definitions of Terms Specific to This Standard:
4.3 All specimen-preparation procedures and test conditions
3.2.1 color-hold guidelines—predictive target color regions
shall be the same as indicated in the Specimen Preparation and
within a three-dimensional model which constitute acceptable
Test Methods sections of Specification D 4216.
appearance retention levels of color change resulting from
4.4 The compound shall have a minimum Izod impact
weathering of a specific product type and color.
strength of 0.65 ft·lbf/in. (34.7 J/m) notch at 0°C (32°F) when
3.2.2 Discussion—Commercial products that demonstrate
tested in accordance with Test Method D 256.
weathering behavior within reasonable conformance to these
4.5 The poly(vinyl chloride) compound, when tested in
target guidelines during a two-year test period can be antici-
accordance with Test Method D 635, shall not exceed an
pated to weather without exhibiting unacceptable color
average extent of burn of 4 in. (100 mm), with an average time
changes.
of burn not to exceed 10 s. A sample thickness of 0.040 in. (1
3.2.3 dark beige siding—siding the color of which is
mm) 610 % is required.
defined by the color space falling within the parameters
NOTE 4—The flammability testing data, conclusions, and recommen-
L 5 50 to 75 , a 523to4 , and b 55to18 .
H H H
dations of Test Method D 635 related solely to the measurement and
3.2.4 dark gray-blue siding—siding the color of which is
description of properties for classification of the poly(vinyl chloride)
defined by the color space falling within the parameters
compound in response to flame under controlled laboratory conditions and
L 5 45 to 65 , a 527to0 , and b 5210 to 0 .
shall not be used for the description or appraisal of the fire hazard of vinyl
H H H
siding under actual fire conditions.
3.2.5 gold siding—siding the color of which is defined by
the color space falling within the parameters L 5 65 to 100 ,
H 4.6 The PVC compound when extruded into siding shall
a 525to3 , and b 5 18 to 30 .
H H
maintain uniform color and be free of any visual surface or
3.2.6 gray siding—siding the color of which is defined by
structural changes, such as peeling, chipping, cracking, flaking,
the color space falling within the parameters L 5 65 to 85 ,
H
or pitting.
a 523to1 , and b 523to2 .
H H 4.7 The PVC compound shall be compounded so as to
3.2.7 green siding—siding the color of which is defined by
provide the heat stability and weather exposure stability
the color space falling within the parameters L 5 55.6 to 80.5
H required for the siding market application.
, a 5212 to 23 , and b 54to13 .
H H
3.2.8 light beige siding—siding the color of which is 5. Physical Requirements
defined by the color space falling within the parameters
5.1 Length and Width—The nominal length and width of the
L 5 75 to 100 , a 523to4 , and b 55to18 .
H H H siding shall be as agreed upon between the purchaser and the
3.2.9 light gray-blue siding—siding the color of which is 1
seller. The actual length shall not be less than ⁄4 in. (6.4 mm)
defined by the color space falling within the parameters
of the nominal length and the actual width shall be within
L 5 65 to 100 , a 527to0 , and b 5210 to 23. 1
H H H 6 ⁄16in. (1.6 mm) of the nominal width when measured in
3.2.10 temperate northern climate— in weather testing,a
accordance with 6.3 and 6.4.
North American metropolitan area testing site located within
5.2 Thickness—The minimum thickness of the siding shall
73 to 100°W longitude and 37 to 45°N latitude.
be 0.035 in. (0.9 mm) when measured in accordance with 6.5.
3.2.11 vinyl siding—a shaped material, made principally
from rigid poly(vinyl chloride) (PVC), that is used to clad
TABLE 1 Class Requirements for Rigid Poly(Vinyl Chloride)
exterior walls of buildings.
Compounds Used for Siding
3.2.12 Discussion—Any exception to a homogeneous rigid
NOTE 1—The minimum property test value will determine the class
PVC compound is present in a coextruded or laminated
number, even though other higher property test values may fall within
capstock.
another class.
3.2.13 white siding—siding the color of which is defined by
the color space falling within the parameters L 5 85 to 100 ,
H Compound Class 123
a 52to 23 , and b 522to4 . Number
H H
3.2.14 yellow siding—siding the color of which is defined Izod Impact Strength at 73.4°F (23°C), min:
ft·lbf/in. of notch 1.5 2.4 9.9
by the color space falling within the parameters L 5 65 to 100
H
(J/m of notch) (80.0) (130.0) (530)
, a 5210 to 25 , and b 5 13 to 24 .
H H
Tensile Strength, min:
psi 6970 5800 5510
4. Materials and Manufacture
(MPa) (48.0) (40.0) (38.0)
Modulus of elasticity in tension, min:
4.1 The siding shall be made principally of PVC compound
psi 392 000 319 000 290 000
prepared from PVC homopolymer resin that conforms to the
(MPa) (2700) (2200) (2000)
Deflection temperature under load, min:
°F at 264 psi 158 158 158
Available from American Society of Civil Engineers, 345 E. 47th St., New
(°C at 1.82 MPa) (70) (70) (70)
York, NY 10017-2398.
D 3679
5.3 Camber—A full length of siding (typically 10 or 12 ft tion loads) or positive. The negative values are the largest in
(3.05 or 3.61 m)) shall not have a camber greater than ⁄8 in. magnitude and are the values used in this specification.
(3.2 mm) when measured in accordance with 6.6.
NOTE 7—In that the siding is being tested as a weather-resistant exterior
5.4 Heat Shrinkage—The average heat shrinkage shall not
product applied to an existing exterior structural wall, forces (negative)
exceed 3.0 % when determined by the method described in 6.7.
working to pull the siding off the wall, fasteners, or disengage locks will
5.5 Impact Resistance—Siding shall have a minimum im- be the most important criteria for testing. Positive wind forces test the
integrity of the total wall sections, and do not provide a measure of the
pact strength of 60 in.·lbf (6.78 J) when tested in accordance
performance of the siding.
with 6.8.
5.6 Coeffıcient of Linear Expansion— The siding shall have 5.11.2 Refer to Annex A1 for an explanation as to how the
−5
a coefficient of linear expansion not greater than 4.5 by 10
21.7-lbf/ft (1039-Pa) design pressure was established, and for
−5
in./in./°F (8.1 by 10 mm/mm/°C) when tested in accordance applications where the effective design pressure as specified in
with 6.9.
ASCE 7-88 is greater than 21.7 lbf/ft (for example, wind-zone
5.7 Gloss—The gloss of smooth and embossed siding shall areas greater than 80 mph (35.6 km/h) or elevations above 33
be uniform across the exposed surface. Variations in the
ft (10.1 m).
glossmeter readings for smooth siding shall not be more than
6. Test Methods
610 % or 65.0 points (whichever is greater). Variations for
6.1 General—The inspection and test procedures contained
embossed siding shall not be more than 620 % or 610.0
in this section are used to determine the conformance of
points (whichever is greater). Gloss of smooth and embossed
products to the requirements of this specification. Each pro-
siding shall be tested in accordance with 6.11.
ducer who represents his products as conforming to this
5.8 Surface Distortion—The siding shall be free of bulges,
specification may utilize statistically based sampling plans that
waves, and ripples when tested to a minimum temperature of
are appropriate for each manufacturing process, but shall keep
120°F (49°C) in accordance with the procedure in 6.12. This
the essential records necessary to document, with a high degree
distortion is called “oil-canning.”
of assurance, his claim that all of the requirements of this
5.9 Color—The color of the siding shall be within the
specification have been met. Additional sampling and testing of
defined color space parameters for the specific color agreed
the product, as may be agreed upon between the purchaser and
upon between the purchaser and the manufacturer. The color
the manufacturer, are not precluded by this section.
specified shall be uniform on the surface of the siding panels,
6.2 Conditioning and Test Conditions— Condition the test
except in the case of multicolored woodgrain panels.
specimen in accordance with Procedure A of Practice D 618
5.9.1 Uniformity of Color—When tested in accordance with
and test under those conditions, unless otherwise specified
6.13, the total color change, DE, between a production speci-
herein.
men and the appropriate reference specimen or agreed-upon
6.3 Length—Lay the specimen on a flat surface and measure
color coordinates shall not vary by more than 1.5, and the
with a steel tape. Measure the length of a siding panel to the
chromatic coordinates thereof shall not change by more than
nearest ⁄16 in. (1.6 mm) at the center, the butt edge, and the
6Da = 1.0 and 6Db = 1.0.
H H
bottom of the top lock. The average of the three measurements
5.10 Weathering:
is the actual length.
5.10.1 The siding shall maintain a uniform color and be free
6.4 Width—Interlock two 2-ft (610-mm) long specimens in
of any visual surface or structural changes such as peeling,
the normal mode for installation. Lay the two specimens on a
chipping, cracking, flaking, and pitting when tested in accor-
flat surface. Measure to the nearest ⁄16 in. (1.6 mm), the
dance with 6.10.
distance between the lowest butt edge of the top specimen and
NOTE 5—It is recommended that manufacturers utilize the color-hold
the lowest butt edge of the bottom specimen. Make a measu
...