Spray Foam Under Slab On Grade

Insulating under foundation and basement slabs using spf spray polyurethane foam offers certain advantages over the more common method of using rigid foam board.

Spray foam under slab on grade.

An easy way to recognize eps on the jobsite is that it is commonly white. Below grade under slab system with foamular rigid board insulation. Although both are closed cell insulations they perform very differently over the long term. Owens corning enclosure solutions.

The best way to insulate under a slab on grade concrete foundation is with eps rigid foam insulation. Geolift works in three steps. The first step is to drill holes in the problem concrete. Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications.

Geolift works for driveways sidewalks patios garage floors even pool decks. Two common rigid foam insulations specified for below grade applications are expanded polystyrene eps and extruded polystyrene xps. See our step by step slab on grade construction videos in the ecohome green home building guide pages. As with any new technique however there are some considerations to take into account before using this approach for the first time.

Two of the rigid foam insulations most commonly used below grade and under slabs are expanded polystyrene eps and extruded polystyrene xps. And yes it is a foam just like your beloved spray foam.