ASTM D1970-09
(Specification)Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection
Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection
ABSTRACT
This specification covers the standards for polymer modified bituminous sheet materials proposed for use as underlayment on roof eaves, or valleys, or both, to prevent leakage of shingle, tile or metal roofs from water back-up due to ice dams. The underlayment sheet shall comply with the physical requirements which include thickness, maximum load, elongation, adhesion to plywood, thermal stability, flexibility, tear resistance, moisture vapor permeance, sealability, and slip resistance. The underlayment sheet shall not crack, as well, nor be too sticky as to cause damage upon being unrolled.
SCOPE
1.1 This specification covers polymer modified bituminous sheet materials intended for use as underlayment on roof eaves, or valleys, or both, to prevent leakage of shingle, tile, or metal roofs from water back-up due to ice dams.
1.2 These underlayment sheets have a sticky adhesive layer which is exposed by removal of a protective sheet. The top surface is suitable to work on during the application of the exposed roofing.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.4 The following safety hazards caveat pertains to the test methods portion, Section 8, of this standard. 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.
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Designation: D1970 – 09
Standard Specification for
Self-Adhering Polymer Modified Bituminous Sheet Materials
Used as Steep Roofing Underlayment for Ice Dam
1
Protection
This standard is issued under the fixed designation D1970; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope Nonrigid Thermoplastic Sheeting or Film at Elevated
Temperature
1.1 This specification covers polymer modified bituminous
D2523 Practice for Testing Load-Strain Properties of Roof-
sheetmaterialsintendedforuseasunderlaymentonroofeaves,
ing Membranes
or valleys, or both, to prevent leakage of shingle, tile, or metal
D4073 Test Method for Tensile-Tear Strength of Bitumi-
roofs from water back-up due to ice dams.
nous Roofing Membranes
1.2 These underlayment sheets have a sticky adhesive layer
D5147 Test Methods for Sampling and Testing Modified
which is exposed by removal of a protective sheet. The top
Bituminous Sheet Material
surface is suitable to work on during the application of the
E96/E96M Test Methods for Water Vapor Transmission of
exposed roofing.
Materials
1.3 The values stated in SI units are to be regarded as
standard. The values given in parentheses are mathematical
3. Terminology
conversions to inch-pound units that are provided for informa-
3.1 Definitions—For definitions of terms used in this speci-
tion only and are not considered standard.
fication, refer to Terminology D1079.
1.4 The following safety hazards caveat pertains to the test
3.2 Definitions of Terms Specific to This Standard:
methods portion, Section 8, of this standard. This standard
3.2.1 lot—for the purpose of sampling, a lot shall consist of
does not purport to address all of the safety concerns, if any,
all material manufactured in one production run (not to exceed
associated with its use. It is the responsibility of the user of this
24 h) using the same source of raw materials.
standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior
4. Types
to use.
4.1 Products covered by this specification are of two types:
2. Referenced Documents Type 1, Standard Ice-Dam Underlayment; and Type 2, HT-Ice
2 Dam Underlayment.
2.1 ASTM Standards:
D228 Test Methods for Sampling, Testing, and Analysis of
5. Workmanship, Finish, and Appearance
Asphalt Roll Roofing, Cap Sheets, and Shingles Used in
5.1 The underlayment sheet shall be supplied in roll form.
Roofing and Waterproofing
5.2 The underlayment sheet shall be substantially uniform
D903 Test Method for Peel or Stripping Strength of Adhe-
in thickness and appearance. It shall be free of visible defects
sive Bonds
such as holes, ragged or untrue edges, breaks, cracks, tears,
D1079 TerminologyRelatingtoRoofingandWaterproofing
protuberances, and indentations, except for those perforations
D1204 Test Method for Linear Dimensional Changes of
or protuberances which are intentional.
5.3 Thesurfaceoftheunderlaymentsheetshallbedesigned
to provide traction and slip resistance to the applicator.
1
This specification is under the jurisdiction of ASTM Committee D08 on
RoofingandWaterproofingandisthedirectresponsibilityofSubcommitteeD08.02
NOTE 1—The intent of 5.3 is to recognize that surface slipperiness is
on Prepared Roofings, Shingles and Siding Materials.
important when working on a roof and, while no test method is specified
Current edition approved Jan. 1, 2009. Published January 2009. Originally
in this standard, several methods for assessing the relative slipperiness of
approved in 1990. Last previous edition approved in 2008 as D1970–08. DOI:
surfaces are available. It is the further intent of this paragraph to ensure
10.1520/D1970-09.
2 that, whatever method is used, the friction coefficient or resistance to
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
slipping of the surface of these products should be at least as great as
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
asphalt-saturated felt shingle underlayment tested under the same condi-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tions of temperature and wetness as agreed between purchaser and seller.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D1970 – 09
5.4 Sheet sections shall be suitable for joining by the 8.3.1.1 Prepare five specimens from each sample roll in
manufacturer’s recommended procedure. The entire lower both the longitudinal and transverse directions. Spe
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation:D1970–08 Designation: D 1970 – 09
Standard Specification for
Self-Adhering Polymer Modified Bituminous Sheet Materials
Used as Steep Roofing Underlayment for Ice Dam
1
Protection
This standard is issued under the fixed designation D1970; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers polymer modified bituminous sheet materials intended for use as underlayment on roof eaves, or
valleys, or both, to prevent leakage of shingle, tile, or metal roofs from water back-up due to ice dams.
1.2 These underlayment sheets have a sticky adhesive layer which is exposed by removal of a protective sheet.The top surface
is suitable to work on during the application of the exposed roofing.
1.3
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to inch-pound units that are provided for information only and are not considered standard.
1.4 The following safety hazards caveat pertains to the test methods portion, Section 78, of this standard. 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D228 Test Methods for Sampling, Testing, andAnalysis ofAsphalt Roll Roofing, Cap Sheets, and Shingles Used in Roofing
and Waterproofing
D903 Test Method for Peel or Stripping Strength of Adhesive Bonds
D1079 Terminology Relating to Roofing and Waterproofing
D1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
D2523 Practice for Testing Load-Strain Properties of Roofing Membranes
D4073 Test Method for Tensile-Tear Strength of Bituminous Roofing Membranes
D5147 Test Methods for Sampling and Testing Modified Bituminous Sheet Material
E96/E96M Test Methods for Water Vapor Transmission of Materials
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology D1079.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 lot—for the purpose of sampling, a lot shall consist of all material manufactured in one production run (not to exceed 24
h) using the same source of raw materials.
4. Types
4.1 Products covered by this specification are of two types:Type 1, Standard Ice-Dam Underlayment; andType 2, HT-Ice Dam
Underlayment.
5. Workmanship, Finish, and Appearance
4.1The5.1 The underlayment sheet shall be supplied in roll form.
4.2The5.2 The underlayment sheet shall be substantially uniform in thickness and appearance. It shall be free of visible defects
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD08onRoofingandWaterproofingandisthedirectresponsibilityofSubcommitteeD08.02onPrepared
Roofings, Shingles and Siding Materials.
Current edition approved MayJan. 1, 2008.2009. Published May 2008.January 2009. Originally approved in 1990. Last previous edition approved in 20012008 as
D1970–018.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D1970–09
such as holes, ragged or untrue edges, breaks, cracks, tears, protuberances, and indentations, except for those perforations or
protuberances which are intentional.
4.35.3 The surface of the underlayment sheet shall be designed to provide traction and slip resistance to the applicator.
NOTE 1—The intent of 4.3 5.3 is to recognize that surface slipperiness is important when working on a roof and, while no test method is specified in
this standard, several methods for assessing the relative slipperiness of surfaces are available. It is the further intent of this paragraph to ensure that,
whatever method is used, the friction coefficient or resistance to slipping of the surface of these products should be at least as great as asphalt-saturated
felt shingle underlayment tested under the same c
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation:D1970–08 Designation: D 1970 – 09
Standard Specification for
Self-Adhering Polymer Modified Bituminous Sheet Materials
Used as Steep Roofing Underlayment for Ice Dam
1
Protection
This standard is issued under the fixed designation D1970; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers polymer modified bituminous sheet materials intended for use as underlayment on roof eaves, or
valleys, or both, to prevent leakage of shingle, tile, or metal roofs from water back-up due to ice dams.
1.2 These underlayment sheets have a sticky adhesive layer which is exposed by removal of a protective sheet.The top surface
is suitable to work on during the application of the exposed roofing.
1.3
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to inch-pound units that are provided for information only and are not considered standard.
1.4 The following safety hazards caveat pertains to the test methods portion, Section 78, of this standard. 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D228 Test Methods for Sampling, Testing, andAnalysis ofAsphalt Roll Roofing, Cap Sheets, and Shingles Used in Roofing
and Waterproofing
D903 Test Method for Peel or Stripping Strength of Adhesive Bonds
D1079 Terminology Relating to Roofing and Waterproofing
D1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
D2523 Practice for Testing Load-Strain Properties of Roofing Membranes
D4073 Test Method for Tensile-Tear Strength of Bituminous Roofing Membranes
D5147 Test Methods for Sampling and Testing Modified Bituminous Sheet Material
E96/E96M Test Methods for Water Vapor Transmission of Materials
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology D1079.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 lot—for the purpose of sampling, a lot shall consist of all material manufactured in one production run (not to exceed 24
h) using the same source of raw materials.
4. Types
4.1 Products covered by this specification are of two types:Type 1, Standard Ice-Dam Underlayment; andType 2, HT-Ice Dam
Underlayment.
5. Workmanship, Finish, and Appearance
4.1The5.1 The underlayment sheet shall be supplied in roll form.
4.2The5.2 The underlayment sheet shall be substantially uniform in thickness and appearance. It shall be free of visible defects
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD08onRoofingandWaterproofingandisthedirectresponsibilityofSubcommitteeD08.02onPrepared
Roofings, Shingles and Siding Materials.
Current edition approved MayJan. 1, 2008.2009. Published May 2008.January 2009. Originally approved in 1990. Last previous edition approved in 20012008 as
D1970–018.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D1970–09
such as holes, ragged or untrue edges, breaks, cracks, tears, protuberances, and indentations, except for those perforations or
protuberances which are intentional.
4.35.3 The surface of the underlayment sheet shall be designed to provide traction and slip resistance to the applicator.
NOTE 1—The intent of 4.3 5.3 is to recognize that surface slipperiness is important when working on a roof and, while no test method is specified in
this standard, several methods for assessing the relative slipperiness of surfaces are available. It is the further intent of this paragraph to ensure that,
whatever method is used, the friction coefficient or resistance to slipping of the surface of these products should be at least as great as asphalt-saturated
felt shingle underlayment tested under the same c
...
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