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.

The f factors for slab on grade floors are defined in standard 90 1. Frost protected slab poured over polystyrene insulation with additional polystyrene insulation outside the foundation wall. 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. R 10 scored squared edge insulation sheathing model 52dd view the owens corning basement and crawlspace insulation.

Slab on grade refers to a concrete slab that s used as a foundation for a structure. Best seller owens corning foamular 250 2 in. Check out the podcast episode and please feel free to leave you comments or questions. An alternative to foam board is to drape fiberglass roll insulation down the foundation walls with the edges butted tightly together.

Martin holladay explains insulating a slab on grade in the energy smart details department. A basement foundation supports the entire structure. Do so all the way around the perimeter of the foundation. If you re pouring up against your foundation walls insulate between the slab and the walls.

The slab is created from a mold built into the ground that s reinforced with rebar and wire mesh. 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 climate the type of foundation whether the slab includes hydronic tubing for radiant heat and the severity of the local termite problem. Insulating a slab on grade depends on at least four factors.

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. A basement foundation is a minimum of eight feet above the footings and provides living and storage space. How you insulate under the slab depends upon the severity of your winters. A concrete floor is an excellent solution for a high performing home.

Install rigid insulation foam board against the foundation from the subfloor to the plastic or concrete slab on the floor of the crawlspace. Insulated concrete forms foundations. Slab foundation is the least expensive of the three foundations. You can either use a raft foundation which is a reinforced concrete slab and foundation cast in one or opt for a perimeter reinforced concrete ring beam arrangement to support the load bearing walls with a separate reinforced concrete slab for the floor.