Insulated Concrete Slab Foundation

4 10 2012 3 climate zones e301 1 6 5 8 4 slab r value table 402 1 1 insulation and fenestration requirements by component e402 1 1 climatezone slab r valued 4 10 2 ft 5 10 2 ft 6 10 4 ft 9.

Insulated concrete slab foundation.

From an engineering perspective there are two choices. The climate the type of foundation whether the slab includes hydronic tubing for radiant heat and the severity of the local termite problem. The slab is created from a mold built into the ground that s reinforced with rebar and wire mesh. A basement foundation supports the entire structure.

Insulated concrete forms foundations. Slab foundation is the least expensive of the three foundations. An alternative to foam board is to drape fiberglass roll insulation down the foundation walls with the edges butted tightly together. If you re pouring up against your foundation walls insulate between the slab and the walls.

Best seller owens corning foamular 250 2 in. A basement foundation is a minimum of eight feet above the footings and provides living and storage space. Do so all the way around the perimeter of the foundation. A concrete floor is an excellent solution for a high performing home.

Martin holladay explains insulating a slab on grade in the energy smart details department. Insulating a slab on grade depends on at least four factors. How you insulate under the slab depends upon the severity of your winters. Two materials used to construct foundations are icf and poured concrete.

But to make the most of the thermal mass benefits of concrete the slab and foundation should be insulated from both the ground and the air. Slab on grade refers to a concrete slab that s used as a foundation for a structure. Continuous insulation extends downward from the top of the slab and along the entire perimeter and completely covers the entire area under the slab. The f factors for slab on grade floors are defined in standard 90 1.

Check out the podcast episode and please feel free to leave you comments or questions. For a cleaner looking installation cut the top edge of the foam board at a 45 degree angle so the concrete will flow all the way to the foundation wall and hide the foam. Frost protected slab poured over polystyrene insulation with additional polystyrene insulation outside the foundation wall. Concrete slab on grade.