Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam.
Insulation against concrete walls basement.
Notice the difference between the studs against the foundation and the studs that formed an interior division wall.
Any of the following insulation materials are acceptable for this purpose.
There is a 5 inch gap to the wooden studs.
The vapour barrier did not protect the exterior wall from damage and mold growth.
Or you can leave a 4 inch gap between the studs and concrete wall and probably get away with it.
When insulating concrete basement walls a good idea because concrete basement walls are often cold use rigid foam board insulation if the insulation will come into direct contact with the.
Insulation materials are the key.
I have a 1950s brick colonial with uninsulated concrete block walls.
Concrete stone concrete block and other masonry foundation materials have very little insulating value a foundation wall can account for approximately 20 of heat loss.
This was a typical basement wall assembly with a stud wall directly against the foundation followed by fiberglass insulation and a vapour barrier.
So you must assume that your concrete is fully saturated and full of water in order to properly insulate your basement walls.
And there is no effective way to fill the voids in an existing concrete block wall.
It can fill in all the gaps and spaces thoroughly giving you the best protection against moisture and air infiltration.
I am about to put in the insulation and my contractor has recommended pink fibreglass batts between the studs leaving an air gap between the pink and the vapour barrier on the concrete.
Most jurisdictions require a 4 mil plastic sheet vapor barrier for basement walls against concrete.
The best way to insulate the interior side of a basement wall is with foam insulation that is adhered to or sprayed directly on the concrete.
Build a standard wall frame using studs around your basement and place them against the concrete wall.
Inside the drywall is nailed to studs fastened flat against the block.
David caruso springfield pa.
Closed cell spray foam is the best way to insulate concrete basement walls.
The key to successfully insulating basement walls is selecting insulating materials that stop moisture movement and prevent mold growth.
Space your studs either 16 or 24 apart.
How do i insulate walls with stud bays only 1 inches thick.
I have framed my basement walls vapour barrier is installed against the poured concrete basement wall.
This will allow you to cut your batts to fit comfortably between them.