Sill gaskets and electrical box enclosures

Insulation · Air/Vapor Barriers (Vapor Retarders) · printed page 238 (PDF page 239)

Book index entries

Electric Box Enclosures to Control Air Leakage Gaskets – Sill Sill – Gaskets and Electrical Box Enclosures Air/Vapor Barriers Vapor Retarders

Text in the illustration

manufactured enclosure sealed to air barrier
sealant
sill gasket
wall framing
air barrier
sheathing
electrical box enclosure made on site (of polyethylene) and sealed to air barrier
floor framing
foundation
insulation, drywall not shown

Generated explanation

The illustration shows a wood-framed wall and floor assembly supported on a concrete foundation, with an air barrier at the wall framing. Two enlarged electrical-box details show a manufactured enclosure and a site-made polyethylene enclosure, each sealed to the air barrier. Sealant is identified at the perimeter of the manufactured enclosure. A circular detail shows a sill gasket between the wood sill and the concrete foundation. These details illustrate air-leakage control at electrical penetrations and the sill-to-foundation junction; insulation and drywall are explicitly omitted.

Components

electrical box manufactured electrical box enclosure site-made electrical box enclosure air barrier perimeter sealant sill gasket wood sill plate wall framing wall sheathing floor framing subfloor concrete foundation

Materials

wood concrete polyethylene sealant gasket material