Spray Insulation On Concrete Walls
This creates a tight air and moisture seal.
Spray insulation on concrete walls. Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam. Any of the following insulation materials are acceptable for this purpose. Seal the gap between the bottom plate of the wall and the floor with acoustical sealant or caulk. This refers to insulation uninterrupted by furring or by the webs of concrete masonry units.
Geolift works in three steps. 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. Three basic types of thermal insulation are available rigid board batt or blanket and spray on. Spray foam insulation for basement walls.
Concrete walls can be insulated on the interior or exterior face or by embedding the material within the wall. Press the poly into the sealant. Examples include rigid insulation adhered to the interior of the wall with furring and drywall applied over the insulation continuous insulation in a masonry cavity wall and exterior insulation and finish systems. Geolift works for driveways sidewalks patios garage floors even pool decks.
The option for insulating concrete block walls includes spray foam insulation injection foam insulation polystyrene beads foam boards and loose fill masonry insulation. Spray foam insulation is in my opinion the best option for basement walls if you can afford it. Because it isolates the concrete s thermal mass from the inside space however it is the least desirable from the standpoint of energy conservation. The first step is to drill holes in the problem concrete.
Interior installation using the rigid board batt or spray on methods is the least expensive method. Concrete is a good conductor of heat which means it transfers cold air inside from the outside very easily. Buy unfaced friction fit batts and seal the walls with a 4 mil poly vapor retarder. 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.
Use special airtight electrical boxes see photo tip 5 or seal the poly to the electrical box with acoustical sealant. In this article i d like to share several other sites that discuss using spray foam insulation for basement walls. And yes it is a foam just like your beloved spray foam. I ve written quite a few posts on insulating basement walls using rigid foam board insulation.
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.