Vapor retarder definition

Vapor retarder means a ground cover material of 6 mil black polyethylene sheeting or equivalent.
Vapor retarder means 6 mil visquene or equal.
Vapor retarder means a material installed to retard water vapor diffusion into building component assemblies. The retarder shall have a maximum permeance rating of 1.0 as defined in the 1989 ASHRAE Handbook of Fundamentals. A vapor retarder may perform more than one function, such as, but not limited to, an air barrier, referred to as an "air/vapor barrier." Building papers, sometimes called "house wraps," n designed to be applied to the outside of building serve only as air barriers and are not vapor retarders.

Examples of Vapor retarder in a sentence

  • If the space under the home is to be enclosed with skirting or other materials, a vapor retarder must be installed to cover the ground under the home, unless the home is installed in an arid region with dry soil conditions.(b) Vapor retarder material.

  • Vapor retarder jacket: moisture vapor transmission; ASTM E96; 0.02 PERM.

  • Vapor retarder material shall meet the requirements of the International Building Code, Article 1405 and conform to the requirements of ASTM D4397.

  • If suitable, the installation instructions must indicate that when gutters and downspouts are installed, the runoff must be directed away from the home.BILLING CODE 4210–07–P § 3285.204 Ground moisture control.(a) Vapor retarder.

  • Vapor retarder materials shall be classified in accordance with Table 1404.3(1).

  • Vapor retarder will have a maximum permeance rating of 0.13 perm.

  • The boards are usually available with butt or shiplap edges to aid in ensuring a tight air-seal during installation.• R-value: 5 ft2h°F/Btu-in (R-5/inch)• Air barrier: Yes• Vapor retarder: Typically Class II (1.2 Perm-inch, ASHRAE 1997) XPS board is commonly used on the outside of residential above-grade walls, and on the inside and outside of foundation walls.

  • Vapor retarder material shall be polyethylene sheeting conforming to the requirements of ASTM D 4397.

  • Vapor retarder facings should face down in ceilings in most climate areas.There are four techniques for holding insula- tion in place between floor joists.

  • Vapor retarder on the "warm" side of the insulation shall have a transmission rate not exceeding 1 perm.

Related to Vapor retarder

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