Spray Foam Insulation Questions From Kitchener

Across Ontario, most jobs price out between $2.50 and $7 per sprayed square foot. Open cell in an attic sits near the low end, and closed cell on roof boards or crawl space walls sits near the top. Your written quote gives the real number after a free visit.

Each inch of closed cell rates near R-6 to R-7, while each inch of open cell rates near R-3.5 to R-3.8. Foam also stops air movement, so it often does better in a real house than batts with the same number.

Yes, once it has cured. Plan to be out of the house while we spray and for about a day after. Fans run through the space, and we tell you the hour you can come back.

Closed cell is dense and rigid, blocks vapour and suits basements, crawl spaces and rim joists. Open cell is soft, costs less and suits attic ceilings and inside walls. Many Kitchener homes use both.

Spray foam insulation seals air leaks while it insulates, and fibreglass does not. Batts can sag, leave gaps and hold damp against a cold wall. Foam stays bonded to the framing.

A kit is hard to keep at the right temperature and mix over a large area. The foam can go on too thick, shrink or pull away from the wood. Kits are fine for small gaps but rarely work for a whole wall or attic.

Foam is treated to slow flame spread, but it still has to be covered in living spaces. Drywall or an approved coating goes over it, and attics and crawl spaces have their own lighter rules.

Yes, when the walls are open from inside. We spray the stud bays and leave the brick and trim alone. Heritage districts may need a permit for outside changes, so check your address with the city.

Yes. Foam that has shrunk, cracked or kept a smell has to be cut back to clean wood. We remove it, clean the surface and spray new foam properly.

Most homes can be booked for spray foam insulation within a few weeks of the visit. Larger commercial work is scheduled around your hours.