There are several ways to install subflooring above the rigid foam.
Styrofoam basement floor insulation.
When insulating interior basement walls in a finished basement use our styrofoam brand insulation.
Get free shipping on qualified basement foam board insulation or buy online pick up in store today in the building materials department.
Styrofoam brand insulation is a rigid insulation that can be placed directly on walls framing and drywall.
Set your store to see.
This foam board insulation is available with straight or tongue and groove edges to help limit air movement.
It is available in all different size configurations to accommodate lots of different applications.
R 7 7 rigid foam insulation model 310891 18 35 18 35.
Allows spacing for electrical wiring and other utilities.
We recommend at least 1 inch of foam board.
Use a good quality foam board adhesive to adhere the foam to the concrete.
Buy 24 or more.
Floor 1 garage 3 under slab 5 more ways to filter.
View the owens corning basement and crawlspace insulation 28 50 28 50.
R 3 2 polyisocyanurate rigid foam insulation board model 754404 13 82 13 82.
Floor 2 garage 8 interior ceiling 3 interior wall 3 metal building 2 re siding 5.
If your basement slab lacks sub slab foam you ll have to install the insulation above the slab.
Install a layer of rigid foam board insulation such as styrofoam tongue and groove or styrofoam brand highload 40 depending on the loads you have the first one provides 25 psi and the second one provides 40 psi.
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.