How To Install Rigid Foam Insulation On Basement Floor

Once the insulation has been placed you will want to cover it up with plywood. Step 5 cover with plywood. You can use either one or two layers of plywood or osb and the subflooring can either be fastened to the concrete with long tapcon screws or it can simply float above the foam.

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You can attach wood sleepers to the floor fill the gaps with rigid foam insulation and then apply your finish flooring.

How to install rigid foam insulation on basement floor.

Let s take a look. It installs easily with furring strips an. Make sure the foam boards run from the floor to the underside of your floor deck above. This is very common mainly because it is very cost effective.

Step 4 install the insulation. Save time and space in your basement with owens corning foamular insulpink extruded polystyrene xps insulation. Is rigid foam insulation the right insulation for your basement. Or as demonstrated here you can cover the slab with rigid foam insulation add two layers of plywood and then add the finish flooring.

If your basement slab lacks sub slab foam you ll have to install the insulation above the slab. There are several ways to install subflooring above the rigid foam. You may need to cut the insulation down with a utility knife to make sure it fits properly between each grid. Most homes use fiberglass but rigid foam insulation although more costly offers a few extra features.

Your choice really comes down to blanket insulation aka fiberglass or xps. First place a layer of 1 1 2 closed cell foam insulation board against the basement walls using a manufacturer s recommended adhesive. There are two ways to handle insulating concrete floors. Place your rigid foam insulation between the sleepers in the open areas.

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