Installing Rigid Foam Insulation On Basement Floor

Installing rigid foam on basement floor on september 6 2020 by amik eps xps foam insulation styrofoam sealing and insulating rim joists fibergl vs rigid foam insulation basement insulation how to insulate spray foam vs rigid insulation.

Installing rigid foam insulation on basement floor.

It installs easily with furring strips an. I posted on the basement insulation site but i ve developed my thinking a little more and now ponder whether this would work for the concrete basement floor that i very much want to finish in ceramic tile 6 poly 1 xps foam 3 4 advantech 1 2 hardibacker thinset and 1 4 tile. No comments rigid foam insulation is a good choice against the concrete many experts recommend leaving st basement insulating walls pin by nathan bremer on wall building foundation interior guide to correct how insulate your chicago tribune floor it up suloor what do behind diy room home improvement forum. Save time and space in your basement with owens corning foamular insulpink extruded polystyrene xps insulation.

All rigid foam insulation is mould and mildew resistant. You may need to cut the insulation down with a utility knife to make sure it fits properly between each grid. By admin filed under basement. Step 4 install the insulation.

Ideally you want to have rigid foam insulation in a basement against all the outside walls and the floor a minimum of five centimetres on the walls and 2 5 cm on the floor. If your basement slab lacks sub slab foam you ll have to install the insulation above the slab. Rigid foam is the best insulation for rim joists. 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.

The inspector may require you to cover the new insulation with drywall as a fire block or leave some areas uncovered to allow for termite inspections. In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions. There are several ways to install subflooring above the rigid foam. Step 5 cover with plywood.

Rigid foam is combustible so by code must be sealed in by a thermal barrier of either drywall or 5 5 of roxul with the latter providing added insulation in a critical heat loss zone provide sound dampening to the above floor. Rigid foam insulation basement floor. It won t hold moisture even if you had a flood in your basement. Place your rigid foam insulation between the sleepers in the open areas.