Spray Insulation On Concrete Walls

Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam.
Spray insulation on concrete walls. Concrete is a good conductor of heat which means it transfers cold air inside from the outside very easily. The first step is to drill holes in the problem concrete. Geolift works in three steps. Closed cell spray foam is the best insulation for a concrete wall because it gets into all of the pores on the surface of the 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. Spray foam insulation for basement walls. One of the options the iecc prescriptive r values iecc table 502 2 1 calls for continuous insulation on concrete masonry and other mass walls. Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk.
Concrete walls can be insulated on the interior or exterior face or by embedding the material within the wall. Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant. Because it isolates the concrete s thermal mass from the inside space however it is the least desirable from the standpoint of energy conservation. Geolift works for driveways sidewalks patios garage floors even pool decks.
While these are the options again the material available to use depends on whether the walls will be covered or the open top is exposed like in a remodel or new build. In this article i d like to share several other sites that discuss using spray foam insulation for basement walls. Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder. Three basic types of thermal insulation are available rigid board batt or blanket and spray on.
It can even stop small water leaks in the concrete. Spray foam insulation is in my opinion the best option for basement walls if you can afford it. Geolift can help to lift existing concrete surfaces and fix those problem areas around your house with much less labor. This refers to insulation uninterrupted by furring or by the webs of concrete masonry units.
And yes it is a foam just like your beloved spray foam. This creates a tight air and moisture seal. Press the poly into the sealant. Any of the following insulation materials are acceptable for this purpose.
Interior installation using the rigid board batt or spray on methods is the least expensive method.