Spray Foam Under Slab On Grade

Holes should be no less than six inches away from the edge of the concrete.

Spray foam under slab on grade.

The first step is to drill holes in the problem concrete. It also discusses installation procedures for below grade and under slab insulation. And yes it is a foam just like your beloved spray foam. Although both are closed cell insulations they perform very differently over the long term.

Owens corning enclosure solutions. Geolift works in three steps. Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications. See our step by step slab on grade construction videos in the ecohome green home building guide pages.

Insulating under foundation and basement slabs using spf spray polyurethane foam offers certain advantages over the more common method of using rigid foam board. Two of the rigid foam insulations most commonly used below grade and under slabs are expanded polystyrene eps and extruded polystyrene xps. Two common rigid foam insulations specified for below grade applications are expanded polystyrene eps and extruded polystyrene xps. The best way to insulate under a slab on grade concrete foundation is with eps rigid foam insulation.

An easy way to recognize eps on the jobsite is that it is commonly white. As with any new technique however there are some considerations to take into account before using this approach for the first time.