Spray Foam Under Slab On Grade

Owens corning enclosure solutions. Geolift works in three steps. Below grade under slab system with foamular rigid board insulation.

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It also discusses installation procedures for below grade and under slab insulation.

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. Two of the rigid foam insulations most commonly used below grade and under slabs 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. Confirm long term thermal performance.

An easy way to recognize eps on the jobsite is that it is commonly white. Geolift works for driveways sidewalks patios garage floors even pool decks. See our step by step slab on grade construction videos in the ecohome green home building guide pages. Although both are closed cell insulations they perform very differently over the long term.

Holes should be no less than six inches away from the edge of the concrete. Two common rigid foam insulations specified for below grade applications are expanded polystyrene eps and extruded polystyrene xps. As with any new technique however there are some considerations to take into account before using this approach for the first time. Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications.

The first step is to drill holes in the problem concrete. And yes it is a foam just like your beloved spray foam.

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