Rigid Foam Floor Insulation

There are two ways to handle insulating concrete floors.

Rigid foam floor insulation. In this scenario a rigid foam insulation is usual and as you d want the same u value in the roof we need the same thickness of insulation 180mm. Rigid insulation 4x8 foam insulation faced foam board insulation existing drywall foam board insulation 2x4 8 board 2x6 water proof. It is denser than eps and provides more r value with a rating of 5 per inch of thickness. If your basement slab lacks sub slab foam you ll have to install the insulation above the slab.

Cement 1 concrete 1 plywood 1 wood 1 insulation features. It s made of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer. Rigid foam insulation creates a solid barrier between the inside and outside of your house acting as an obstacle in the way of heat and cold transfer. R 3 2 polyisocyanurate rigid foam insulation board r matte plus 3 thermasheath 3 is rigid foam r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board.

Most packs of rigid foam feature a higher r value per inch than cellulose fiberglass or cotton. You want it snug but not to. Unlike fiberglass rigid foam insulation does not absorb water support mold or allow air to pass through providing that joints between boards are sealed with tape. However not all rigid foam insulation packs are created equal.

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. Floor 2 garage 2 re siding 1 under slab 1 more ways to filter. Instead of installing the foam insulation between floor joists in the crawl space the foam board is installed against the crawl space foundation walls. Rmax r matte plus 3 1 2 in.

Since this is way out of our budget i thought i could tackle the problem from the floor of the room since we have to replace the carpet. Or as demonstrated here you can cover the slab with rigid foam insulation add two layers of plywood and then add the finish flooring. Many builders will baulk at this figure it was not long ago that installing 50mm of insulation in the floor was considered fairly advanced. There are several ways to install subflooring above the rigid foam.

This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. You can attach wood sleepers to the floor fill the gaps with rigid foam insulation and then apply your finish flooring.