Standard Specification for Poly(Vinyl Chloride) Sheet Roofing

ABSTRACT
This specification covers flexible fiber- or fabric-reinforced sheet made from poly(vinyl chloride) resin as the primary polymer intended for use in single-ply roofing membranes exposed to the weather. The sheet shall contain. In-place roof system design criteria such as fire resistance, material compatibility, wind uplift resistance, in-situ shrinkage, among others, are beyond the scope of this specification. The physical requirements for which the sheet materials shall be tested on and shall conform accordingly to are as follows: overall thickness and thickness over scrim; tensile strength at break; breaking strength; elongation at break; seam strength; retention of properties after heat aging; tear resistance and tearing strength; low temperature bend; cracking and crazing after accelerated weathering test; linear dimensional change; change in weight after immersion in water; and static and dynamic puncture resistance.
SCOPE
1.1 This specification covers flexible sheet made from poly(vinyl chloride) resin as the primary polymer intended for use in single-ply roofing membranes exposed to the weather. The sheet shall contain reinforcing fibers or reinforcing fabrics.
1.2 The tests and property limits used to characterize the sheet are values intended to ensure minimum quality for the intended purpose. In-place roof system design criteria, such as fire resistance, material compatibility, wind uplift resistance, in-situ shrinkage, among others, are factors that must be considered but are beyond the scope of this specification.
1.3 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are for information only.
1.4 This standard may involve hazardous materials, operations, and equipment. 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 limitation prior to use.

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Publication Date
30-Nov-2006
Current Stage
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ASTM D4434-06 - Standard Specification for Poly(Vinyl Chloride) Sheet Roofing
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 4434 – 06
Standard Specification for
1
Poly(Vinyl Chloride) Sheet Roofing
This standard is issued under the fixed designation D4434; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript 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. Scope D 2136 Test Method for Coated Fabrics—Low-
Temperature Bend Test
1.1 This specification covers flexible sheet made from
D3045 Practice for Heat Aging of Plastics Without Load
poly(vinyl chloride) resin as the primary polymer intended for
D5602 Test Method for Static Puncture Resistance of
use in single-ply roofing membranes exposed to the weather.
Roofing Membrane Specimens
Thesheetshallcontainreinforcingfibersorreinforcingfabrics.
D5635 Test Method for Dynamic Puncture Resistance of
1.2 The tests and property limits used to characterize the
Roofing Membrane Specimens
sheet are values intended to ensure minimum quality for the
G151 Practice for Exposing Nonmetallic Materials in Ac-
intended purpose. In-place roof system design criteria, such as
celerated Test Devices that Use Laboratory Light Sources
fire resistance, material compatibility, wind uplift resistance,
G154 Practice for Operating Fluorescent Light Apparatus
in-situ shrinkage, among others, are factors that must be
for UV Exposure of Nonmetallic Materials
considered but are beyond the scope of this specification.
G155 Practice for Operating Xenon Arc Light Apparatus
1.3 The values stated in SI units are to be regarded as the
for Exposure of Non-Metallic Materials
standard. The values stated in parentheses are for information
only.
3. Classification
1.4 This standard may involve hazardous materials, opera-
3.1 Type II:
tions, and equipment. This standard does not purport to
3.1.1 Grade 1—Reinforced sheet in which fibers are incor-
address all of the safety concerns, if any, associated with its
porated into a production process, for example as a carrier,
use. It is the responsibility of the user of this standard to
without appreciably affecting such physical property charac-
establish appropriate safety and health practices and deter-
teristics of the finished product as tensile strength or ultimate
mine the applicability of regulatory limitation prior to use.
elongation, but may provide other desirable characteristics,
2. Referenced Documents such as dimensional stability.
2
3.1.2 Grade 2—Externally reinforced sheet utilizing a fab-
2.1 ASTM Standards:
ric backing.
D570 Test Method for Water Absorption of Plastics
3.2 Type III—Sheet that is internally reinforced with fabric
D638 Test Method for Tensile Properties of Plastics
and which may also have a fabric backing.
D751 Test Methods for Coated Fabrics
3.3 Type IV—Sheet that is internally reinforced with fabric
D1004 Test Method for Tear Resistance (Graves Tear) of
and which may also have a fabric backing with minimum
Plastic Film and Sheeting
thickness of 0.91 mm (0.036 in.).
D1204 Test Method for Linear Dimensional Changes of
Nonrigid Thermoplastic Sheeting or Film at Elevated
4. Materials and Manufacture
Temperature
4.1 The sheet shall consist of poly(vinyl chloride) resin in
amounts greater than 50% of the total polymer content
suitably compounded with plasticizers, stabilizers, fillers, pig-
1
This specification is under the jurisdiction of ASTM Committee D08 on
ments, and other ingredients to satisfy the physical property
RoofingandWaterproofingandisthedirectresponsibilityofSubcommitteeD08.18
requirements and accelerated durability tests.
on Nonbituminous Organic Roof Coverings.
4.2 Tomakeseamsandrepairs,thesheetshallbecapableof
Current edition approved Dec. 1, 2006. Published January 2007. Originally
approved in 1985. Last previous edition approved in 2004 as D4434–04.
being bonded watertight to itself during the design service life
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
of the sheets. The manufacturer shall recommend a suitable
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
method. Design service life is defined as the designated time
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. period of intended system performance.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D4434–06
5. Physical Requirements Physical Requirements 8. Test Methods
5.1 The sheet shall conform to the physical requirements 8.1 Conditioning—Condition the test specimens in accor-
prescribed in Table 1. dance with t
...

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