ASTM D6950 / D6950M - 04(2012)e1

    Standard Practice for Application of Heat Weldable Atactic Polypropylene (APP) Modified Bituminous Waterproofing Membranes Systems for New Building Decks

    Active Standard ASTM D6950 / D6950M | Developed by Subcommittee: D08.22

    Book of Standards Volume: 04.04


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    Significance and Use

    4.1 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.

    4.2 This practice is not all-inclusive and is intended only to supplement detailed instructions from designers and system manufacturers.

    4.3 The horizontal (low sloped) deck or substrate referred to in this practice is reinforced cast-in-place structural concrete.

    1. 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 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.

    1.4 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D41 Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing

    D1079 Terminology Relating to Roofing and Waterproofing

    D4586 Specification for Asphalt Roof Cement, Asbestos-Free

    D5295 Guide for Preparation of Concrete Surfaces for Adhered (Bonded) Membrane Waterproofing Systems

    D5898 Guide for Details for Adhered Sheet Waterproofing

    D5957 Guide for Flood Testing Horizontal Waterproofing Installations

    D6222 Specification for Atactic Polypropylene (APP) Modified Bituminous Sheet Materials Using Polyester Reinforcements

    D6223 Specification for Atactic Polypropylene (APP) Modified Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber Reinforcements

    D6451 Guide for Application of Asphalt Based Protection Board

    D6506 Specification for Asphalt Based Protection Board for Below-Grade Waterproofing

    American Concrete Institute Standard

    ACI301 Specifications for Structural Concrete for Buildings Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094, http://www.concrete.org.

    FMRC Standard

    FM4470 Approval Standard, Class Roof Covers, latest edition; where applicable for corrosion resistant components Available from Factory Mutual Research, 11511 Boston-Providence Turnpike, P.O. Box 9102, Norwood, MA 02062-9102.


    ICS Code

    ICS Number Code 91.120.30 (Waterproofing)

    UNSPSC Code

    UNSPSC Code 30151505(Roofing membranes); 30121500(Bituminous derivatives)


    Referencing This Standard

    DOI: 10.1520/D6950_D6950M-04R12E01

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D6950 / D6950M-04(2012)e1, Standard Practice for Application of Heat Weldable Atactic Polypropylene (APP) Modified Bituminous Waterproofing Membranes Systems for New Building Decks, ASTM International, West Conshohocken, PA, 2004, www.astm.org

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