Building Science Corporation Attic Air Sealing

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Building science corporation attic air sealing.

The following sections provide greater detail on these conditions. Retrofit of blown attic insulation in existing hud code manufactured homes needs. Air sealing details for most common attic situations are provided in this guide on page 15. Other guides for air sealing are available.

Understanding and resolving ice dams. Tenwolde and carll 1992 also observed that during summer attic vents provide some cooling but with sufficient ceiling insulation the effect on cooling loads should be minor. Department of energy s building america program. In hot climates the primary purpose of attic ventilation is to expel solar heated hot air from the attic to lessen the building cooling load.

What s wrong with this practice. Require air sealing and air barriers including attic hatches flues piping lighting wiring chases attic eaves dropped ceilings and knee walls. Neither the united states government nor any agency thereof nor any of their employees. Building science corporation may 15 2014 typical penetrations through the primary components of the air barrier system include plumbing pipes and vents electrical wires and conduits electrical fixtures other mechanical services and in some cases structural members.

The only place air should be able to leave the supply duct system and the furnace or air handling unit is at the supply registers. The attic air sealing details section provides a scope of work and specification for the air sealing of many points of air leakage in common attic spaces. The guide to attic air sealing provides information and specifications to the following groups. A building science consulting and full service architecture firm specializing in building technology for all types of buildings including commercial institutional and residential.

Attic air sealing guide. Guide to attic air sealing joseph lstiburek. Spray foam under roof sheathing. Building science corporation.

Air leakage that is. Ductwork furnaces and air handlers should be sealed against air leakage. The guide to attic duct sealing. Building science corporation guide 7 pages.

A sample work plan can be found in appendix a. Attic air sealing guide and details. Building science corporation guide 47 pages. This report was prepared as an account of work sponsored by an agency of the united states government.