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ASTM

ASTM D7636/D7636M-11

(Practice)

Standard Practice for Sampling and Analysis of Modified Bitumen Roof Systems

Standard Practice for Sampling and Analysis of Modified Bitumen Roof Systems

SIGNIFICANCE AND USE
This practice is for removing specimens from existing modified bitumen roof membranes for visual assessment and evaluation for abnormalities in the membrane.
This practice is not intended for roofs under construction.
SCOPE
1.1 This practice is for removing specimens from existing modified bitumen roof membranes for visual assessment and evaluation for abnormalities in the membrane. The roof membrane consists of one or more plies/sheet materials in which at least one ply is a modified bitumen (MB) sheet, and which is installed with one or more of the following methods: hot asphalt, heat welding (open flame torching or heated air), cold adhesive, or self-adhesive. The roof membrane may consist of one or more plies of the following:
1.1.1 SBS (styrene-butadiene-styrene), APP (attactic polypropylene), or other polymer, modified bitumen sheet materials.
1.1.2 An exposed modified bitumen sheet material, that is, a modified cap sheet, covering multiple layers of built-up roofing (BUR) plies.
1.1.3 Any adhesive or bitumen component used to install the roof membrane.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

General Information

Status
Historical
Publication Date
30-Jun-2011
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
D08 - Roofing and Waterproofing
Drafting Committee
D08.20 - Roofing Membrane Systems
Current Stage
Ref Project

Relations

Replaced By
ASTM D7636/D7636M-11(2019) - Standard Practice for Sampling and Analysis of Modified Bitumen Roof Systems
Effective Date
01-Jul-2019

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ASTM D7636/D7636M-11 - Standard Practice for Sampling and Analysis of Modified Bitumen Roof SystemsASTM D7636/D7636M-11 - Standard Practice for Sampling and Analysis of Modified Bitumen Roof Systems
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ASTM D7636/D7636M-11 - Standard Practice for Sampling and Analysis of Modified Bitumen Roof Systems
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Standards Content (Sample)

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:D7636/D7636M −11
Standard Practice for
1
Sampling and Analysis of Modified Bitumen Roof Systems
This standard is issued under the fixed designation D7636/D7636M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
3.1 Definitions—For definitions of terms used in this
1.1 This practice is for removing specimens from existing
practice, refer to Terminology D1079.
modified bitumen roof membranes for visual assessment and
evaluation for abnormalities in the membrane. The roof mem-
3.2 Definitions of Terms Specific to This Standard:
brane consists of one or more plies/sheet materials in which at
3.2.1 hybrid membrane system, n—MB/BUR roof mem-
least one ply is a modified bitumen (MB) sheet, and which is
brane consisting of a modified bitumen cap sheet with one or
installed with one or more of the following methods: hot
more layers of underlying BUR.
asphalt, heat welding (open flame torching or heated air), cold
3.2.2 ply or sheet material, n—a single layer of the modified
adhesive, or self-adhesive. The roof membrane may consist of
bitumen roof membrane.
one or more plies of the following:
1.1.1 SBS (styrene-butadiene-styrene), APP (attactic
4. Sampling
polypropylene), or other polymer, modified bitumen sheet
4.1 Unless otherwise specified, for each abnormal roof area
materials.
take at least one specimen from the area that exhibits an
1.1.2 An exposed modified bitumen sheet material, that is, a
abnormality plus one “control” specimen. The control speci-
modified cap sheet, covering multiple layers of built-up roofing
men should have no obvious abnormalities and should be taken
(BUR) plies.
in close proximity to the sampled problem area.
1.1.3 Any adhesive or bitumen component used to install
4.2 Additional specimens in which abnormalities are exhib-
the roof membrane.
ited in the membrane may be taken to determine the extent of
1.2 The values stated in either SI units or inch-pound units
the affected area.
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
5. Test Specimen
system shall be used independently of the other. Combining
5.1 As a minimum, the roof membrane specimens should be
values from the two systems may result in non-conformance
taken down to the top surface of the membrane substrate.
with the standard.
Sampling down to the level of the roof deck may be necessary
1.3 The values stated in inch-pound units are to be regarded to better determine the cause and extent of any abnormality.
as standard. The values given in parentheses are mathematical
5.2 The recommended minimum specimen size is 305 by
conversions to SI units that are provided for information only
305 mm [12 by 12 in.] or 100 by 1120 mm [4 by 44 in.],
and are not considered standard.
depending on the nature of the potential membrane problem. If
the membrane is a hybrid BUR/MB, the 100 by 1120 mm [4 by
2. Referenced Documents
44 in.] specimen size, cutting across the width of the cap sheet,
2
is recommended.
2.1 ASTM Standards:
5.2.1 The specimen size and shape may be adjusted, once
D1079 Terminology Relating to Roofing and Waterproofing
initialsamplinghasoccurred,toadequatelyassessthenatureof
any problem.
1
ThispracticeisunderthejurisdictionofASTMCommitteeD08onRoofingand
6. Significance and Use
Waterproofing and is the direct responsibility of Subcommittee D08.20 on Roofing
Membrane Systems.
6.1 This practice is for removing specimens from existing
Current edition approved July 1, 2011. Published July 2011. DOI: 10.1520/
modified bitumen roof membranes for visual assessment and
D7636_D7636M-11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or evaluation for abnormalities in the membrane.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2 This practice is not intended for roofs under construc-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tion.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7636/D7636M−11
7. Procedure 7.4.8 Number of plies against that specified, if known.
7.1 Photograph the roof and the sampling process. (When 7.5 If specimens are removed from the roof to be trans-
video imaging is used, still images shall also be included.) ported to another site, protect each from physical damage such
Photos/images should include: as bending or breakage of the sheet materials or coating layers
7.1.1 Photos that show ap
...

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