ASTM D6950-04
(Practice)Standard Practice for Application of Heat Weldable Atactic Polypropylene (APP) Modified Bituminous Waterproofing Membranes Systems for New Building Decks
Standard Practice for Application of Heat Weldable Atactic Polypropylene (APP) Modified Bituminous Waterproofing Membranes Systems for New Building Decks
SIGNIFICANCE AND USE
This practice provides general procedures, information, guidelines, and precautions for the application of heat welded modified bituminous waterproofing systems used as part of a new horizontal waterproofing system.
This practice is not all-inclusive and is intended only to supplement detailed instructions from designers and system manufacturers.
The horizontal (low sloped) deck or substrate referred to in this practice is reinforced cast-in-place structural concrete.
SCOPE
1.1 This practice covers the minimum application recommendations for heat weldable atactic polypropylene (APP) modified bituminous systems used as part of a new horizontal waterproofing system over occupied spaces of buildings where covered by a separate wearing course.
1.2 For the purpose of this practice, the substrate shall be structurally sound, sloped to drain, able to accept the weight of the membrane and other system materials, and meet the local building code requirements. Similarly, all components of the waterproofing system are assumed to comply with any federal, state, and local environmental regulations that may be in effect at the time of installation. Expansion joints, insulation, drainage layers, protection boards, filter sheets, and the wearing surfaces are beyond the scope of this practice.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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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Standards Content (Sample)
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Designation:D6950 −04
StandardPractice for
Application of Heat Weldable Atactic Polypropylene (APP)
Modified Bituminous Waterproofing Membranes Systems for
New Building Decks
This standard is issued under the fixed designation D6950; 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 D5295 Guide for Preparation of Concrete Surfaces for Ad-
hered (Bonded) Membrane Waterproofing Systems
1.1 This practice covers the minimum application recom-
D5898 Guide for Details for Adhered Sheet Waterproofing
mendations for heat weldable atactic polypropylene (APP)
D5957 Guide for Flood Testing Horizontal Waterproofing
modified bituminous systems used as part of a new horizontal
Installations
waterproofing system over occupied spaces of buildings where
D6222 Specification forAtactic Polypropylene (APP) Modi-
covered by a separate wearing course.
fied Bituminous Sheet Materials Using Polyester Rein-
1.2 For the purpose of this practice, the substrate shall be
forcements
structurally sound, sloped to drain, able to accept the weight of
D6223 Specification forAtactic Polypropylene (APP) Modi-
the membrane and other system materials, and meet the local
fied Bituminous Sheet Materials Using a Combination of
building code requirements. Similarly, all components of the
Polyester and Glass Fiber Reinforcements
waterproofing system are assumed to comply with any federal,
D6451 Guide for Application of Asphalt Based Protection
state, and local environmental regulations that may be in effect
Board
at the time of installation. Expansion joints, insulation, drain-
D6506 Specification forAsphalt Based Protection Board for
age layers, protection boards, filter sheets, and the wearing
Below-Grade Waterproofing
surfaces are beyond the scope of this practice.
2.2 American Concrete Institute Standard:
1.3 The values stated in SI units are to be regarded as the
ACI 301 Specifications for Structural Concrete for Build-
standard. The values given in parentheses are for information
ings
only.
2.3 FMRC Standard:
1.4 This standard does not purport to address all of the
FM 4470 Approval Standard, Class Roof Covers, latest
safety concerns, if any, associated with its use. It is the
edition; where applicable for corrosion resistant compo-
responsibility of the user of this standard to establish appro-
nents
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3. Terminology
2. Referenced Documents 3.1 Definitions:
3.1.1 For definition of terms, see Terminology D1079.
2.1 ASTM Standards:
3.1.2 construction joint—a butt joint formed in a structural
D41 Specification for Asphalt Primer Used in Roofing,
slab in order to end one pour and start another pour later. The
Dampproofing, and Waterproofing
joint is usually a cold joint and maybe held together with
D1079 Terminology Relating to Roofing and Waterproofing
reinforcing steel in the slab, or the steel may be discontinuous
D4586 Specification for Asphalt Roof Cement, Asbestos-
by design.
Free
3.1.3 heat welding—the attachment and joining of the modi-
fied bitumen membrane sheet by heating its surface with a
ThispracticeisunderthejurisdictionofASTMCommitteeD08onRoofingand
torch, hot air, or other means of direct thermal contact.
Waterproofing and is the direct responsibility of Subcommittee D08.22 on Water-
proofing and Dampproofing Systems.
Current edition approved July 1, 2004. Published July 2004. DOI: 10.1520/
D6950-04.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican Concrete Institute, P.O. Box 9094, Farmington Hills,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM MI 48333.
Standards volume information, refer to the standard’s Document Summary page on Available from Factory Mutual Research, 11511 Boston-Providence Turnpike,
the ASTM website. P.O. Box 9102, Norwood, MA 02062-9102.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6950−04
4. Significance and Use 8.2 Primer, asphalt primer. See Specification D41.
4.1 This practice provides general procedures, information,
8.3 Roof Cement, asphalt roof cement, asbestos-free. See
guidelines, and precautions for the application of heat welded
Specification D4586.
modified bituminous waterproofing systems used as part of a
8.4 Protection Board, asphalt based protection board. See
new horizontal waterproofing system.
Specification D6506.
4.2 This practice is not all-inclusive and is intended only to
8.5 Mechanical Affıxments—The mechanical fasteners and
supplement detailed instructions from designers and system
stress distribution bars or strips specified for use in the system
manufacturers.
mustmeetthecorrosionguidelinesoutlinedinFMRCStandard
4.3 The horizontal (low sloped) deck or substrate referred to
4470.
in this practice is reinforced cast-in-place structural concrete.
9. Substrate Preparation
5. Delivery of Materials
9.1 The structural slab should have a finish of sufficiently
5.1 Deliver materials in the manufacturer’s original un-
rough texture to provide a mechanical bond for the membrane
opened packages and containers.
but not so rough to preclude achieving continuity of the
5.2 All materials or material packaging must be clearly
membrane across the surface. At a minimum, ACI 301 float
marked in a weather-resistant manner with type, stock, or lot
finish is required withACI 301 trowel finish preferred, deleting
number, and other pertinent information (for example: thick-
the final troweling.
ness, size, weight, manufacturer’s name, ASTM specification)
9.2 Surfaces to receive modified bituminous sheets are to be
and other related information as required by the purchaser.
frost-free and dry, clean, and free of contaminants such as dirt,
6. Storage and Handling of Materials
debris, loose material, cracks, voids and sharp projections
which would prevent satisfactory installation. See Guide
6.1 Store materials on raised platforms or pallets. Store rolls
D5295, Sections 5, 6, and 7, for repairs, surface preparation,
on end with selvage ends up. Materials shall be stored in a dry,
and evaluation.
ventilated, and weatherproof location. Avoid damage or em-
bedment of foreign materials.
9.3 Apply primer at the rate of 0.4 to 0.8 L/m (1 to 2
gal/100 ft ) or as recommended by system supplier/
6.2 Store membrane materials to prevent system supplier’s
manufacturer. Allow to dry. Minimum drying time is one hour
markings from being destroyed.
or as recommended by manufacturer. Drying time of primer
6.3 Store primer in tightly closed original containers at
varies with temperature and humidity conditions.
temperatures recommended by the system supplier. Do not
transfer contents of one container to another container. Do not 9.4 After the primer is applied and has dried, the area must
mix different materials. Do not thin primer, except as directed be covered with the modified bituminous sheets on the same
by the system manufacturer. day or the substrate must be reprimed.
6.4 Modified bituminous rolls and other materials are to be
9.5 Areas that become contaminated by dust, dirt, or other
brou
...
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