Make sure the foam boards run from the floor to the underside of your floor deck above.
How to install rigid foam insulation on basement floor.
There are several ways to install subflooring above the rigid foam.
Step 4 install the insulation.
First place a layer of 1 1 2 closed cell foam insulation board against the basement walls using a manufacturer s recommended adhesive.
Most homes use fiberglass but rigid foam insulation although more costly offers a few extra features.
Let s take a look.
It installs easily with furring strips an.
If your basement slab lacks sub slab foam you ll have to install the insulation above the slab.
Or as demonstrated here you can cover the slab with rigid foam insulation add two layers of plywood and then add the finish flooring.
Save time and space in your basement with owens corning foamular insulpink extruded polystyrene xps insulation.
There are two ways to handle insulating concrete floors.
Is rigid foam insulation the right insulation for your basement.
Once the insulation has been placed you will want to cover it up with plywood.
Step 5 cover with plywood.
You may need to cut the insulation down with a utility knife to make sure it fits properly between each grid.
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.
Place your rigid foam insulation between the sleepers in the open areas.