Spray Foam Insulation - Rim Joists

Pick the date and time along with your contact info and your appointment is scheduled, it's that simple. We will let you know if your project qualifies for any Residential or Commercial Manitoba Hydro Rebates and yes we do all the paperwork.

Walls     Floors     Ceilings     Basements     Rim Joists     Crawlspaces     Attics     The Farm

The old way of insulating rim joists was to use fiberglass batts. Fiberglass is a poor choice of insulation and should never be used at the rim space because it's nearly impossible to install a proper vapor barrier here, and fiberglass batts will allow for a lot of air leakage. Without a vapor barrier at the rim space, you'll have relatively warm, moist air passing through the fiberglass insulation and then condensing at the rim joist. This can create mould or rotting.

Using spray foam at the rim space is just about the only thing that is ever done on new construction houses in Manitoba today; while it's expensive, it's worth it because it can be applied quickly and does a perfect job of both insulating and air sealing the rim space. Wires, faucets, pipes... they're no match for spray foam. All of the penetrations get sealed. The foam expands to R6.5 per inch and insulates the cavity as well. 

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Mailing Address

305 Poplar Ave
Winnipeg, MB
R2L 0J8

Hwy 212
Cooks Creek MB


Phone: 1.204.800.2070
Fax: 1.204.800.3141

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