Vapor retarder definition

Vapor retarder means 6 mil visquene or equal.
Vapor retarder means a ground cover material of 6 mil black polyethylene sheeting or equivalent.
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

  • Accessory Products: Vapor retarder manufacturer's recommended tape, adhesive, mastic, prefabricated boots, etc., for sealing seams and penetrations in vapor retarder.

  • Accessory Products: Vapor retarder manufacturer's recommended tape, adhesive, mastic, prefabricated boots, etc., for sealing seams and penetrations.

  • Vapor retarder faced board: Apply board on pins spaced not more than 300 mm (12 inches) on center each way, and not less than 75 mm (3 inches) from each edge of board.

  • 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 should be oriented such that the longitudinal lap joint overlaps facing downward at either the 3 or 9 o’clock position.

  • Vapor retarder shall have a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84.

  • Water Vapor Permeance: Vapor retarder; 2 perm, maximum, when tested at intended thickness in accordance with ASTM E96/E96M, desiccant method.

  • For the base building UA calculation, the maximum glazing area is 15% of the floor area.R402.1.5 Vapor retarder.

  • Vapor retarder will be specified for heated buildings where a high humidity condition is expected, such as indoor swimming pool or laundry.

  • Vapor retarder for use in a roof system shall comply with identifiable code and/or insurance requirements.

Related to Vapor retarder

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