Rim joist insulation

Insulation · Basements and Crawlspaces · printed page 253 (PDF page 254)

Original page Sign in to save

Book index entries

Insulation – Rim Joist Rim Joist Insulation

Text in the illustration

rim joist
insulation of the rim joist area at the perimeter of the building is an area that has not traditionally received much attention, but can be a significant source of air leakage/heat loss if not properly addressed
wall framing
floor framing
insulation
foundation wall
basement
cross section

Generated explanation

The illustration shows a cross section through the perimeter of a wood-framed floor above a basement foundation wall. Insulation is depicted against the interior face of the foundation wall and in the rim joist area at the edge of the floor framing. A dashed circle highlights the junction between the exterior wall framing, rim joist, and foundation. The annotation identifies this often-overlooked perimeter area as a potential source of air leakage and heat loss if not properly addressed.

Related illustrations

1389

Clues - has insulation been added?

· p. 253

A cross section shows a basement foundation wall, adjacent backfill, and the wall and floor framing above. Insulation is depicted along the interior foundation wall and at the rim joist. Dashed circles and green check ma

1385

Adding exterior basement insulation

· p. 252

The cross section depicts insulation added to the exterior of a basement foundation wall, extending from the footing area to above grade beside a basement window. Backfill lies outside the insulation, and a drainpipe in

1387

Basement moisture control

· p. 252

The cross section shows an insulated basement foundation wall, adjacent soil, floor slab, and wood floor and wall framing above. Interior insulation is fitted tightly against the foundation to prevent convective loops, w