Building Science Corporation Attic Air Sealing

Building science corporation building technologies program recognizing top innovations in building science.

Building science corporation attic air sealing.

Building science corporation guide 47 pages. Building science corporation guide 2 pages. Building science corporation guide 7 pages. Guide to attic air sealing joseph lstiburek.

What s wrong with this practice. Other guides for air sealing are available. 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. A building science consulting and full service architecture firm specializing in building technology for all types of buildings including commercial institutional and residential.

The guide to attic air sealing provides information and specifications to the following groups. Ductwork furnaces and air handlers should be sealed against air leakage. Department of energy s building america program. 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.

Understanding and resolving ice dams. Require air sealing and air barriers including attic hatches flues piping lighting wiring chases attic eaves dropped ceilings and knee walls. The guide to attic duct sealing. Attic air sealing guide and details.

A sample work plan can be found in appendix a. This assessment is adapted from the measure guideline report guide to attic air sealing prepared by building science corporation for the u s. Air seal the attic once the issues identified above have been addressed proceed to develop the attic air sealing work plan. Building science corporation.

Attic air sealing guide. 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. This report was prepared as an account of work sponsored by an agency of the united states government. Air sealing details for most common attic situations are provided in this guide on page 15.

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. 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. Spray foam under roof sheathing. The following sections provide greater detail on these conditions.