Service area · Lanaudière
Attic insulation in Terrebonne
In Terrebonne, 35.9% of homes were built between 1981 and 2000 and 37.8% since 2001. Isolation Cornerstone visits those attics for free, in Lachenaie as much as in La Plaine, then sends a written quote.
Attics from 1981 to today
In the census, 35.9% of the housing stock dates from 1981 to 2000, and 37.8% from 2001 on. In houses from the earlier period, the original insulation may have aged. A duct that ends under the roof drops moisture there, which condenses on the roof deck, and mold follows on the wood.
- 5% Before 1961
- 21.3% 1961 to 1980
- 35.9% 1981 to 2000
- 37.8% Since 2001
Single-detached houses: 62.1% · semi-detached or row houses: 8.2%
Share of the 45,245 private households, 2021 census (Statistics Canada). Our office on rue Lacordaire is 18.4 km away, about 20 minutes by car.
Lachenaie, La Plaine and the newer houses
On August 22, 2001, Terrebonne merged with Lachenaie and La Plaine, two separate towns until then. Lachenaie, founded in 1683, is the oldest of the three.
For a house built since 2001, the insulation depth is something to check with a ruler rather than assume: R-50 over the whole surface, corners included, is not a given. With 62.1% single-detached houses and 76.1% of households owning their home, the city has many of the houses Hydro-Québec’s LogisVert measure targets, if they are heated mainly with electricity. Isolation Cornerstone does the roof insulation and the caulking in one project, and Hydro-Québec decides who qualifies.
FAQ
The questions we get the most
Another question? Call us at (438) 544-6512
Hi! Pick a question and we’ll answer right here.
Choose a question
- My house in Lachenaie was built in 1995. Is it better to blow in insulation right away rather than seal the ceiling first?
- Seal first. Ceiling air leaks are closed before anything else, then a baffle goes in at every soffit, ducts are vented outside and the hatch gets weatherstripping. The blown-in insulation goes in last, at R-51 minimum.
- Is it better to blow new insulation over the old rather than strip it all out?
- Depends on what is underneath. A blocked soffit or warm air leaking through the ceiling would stay hidden under the new layer, so Isolation Cornerstone fixes those first, then blows. Vermiculite is never covered over: it comes out first.
- Is the visit for the quote really free?
- Yes. Isolation Cornerstone comes to look at the attic at your address and gives you a written quote, at no charge and with no pressure.
Get your free quote
We come and look at your attic in Terrebonne: the visit is free, and a written quote follows, with no pressure.
Or call us at (438) 544-6512