Insulation Under Concrete Slab Detail

Cement 3 concrete 4 existing drywall 2 plywood 5 wood 3 sheathing type.

Insulation under concrete slab detail.

Products in this solution. Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department. Slab edge may be responsible for about 60 of the slab s total heat loss certainteed effect of slab edge insulation rem design simulations 8 increase in total heating consumption with no slab edge insulation 62 of heat loss through slab edge 16. Under the slab to maintain a seasonal average slab temperature that is 10 f above the seasonal average soil temperature through a heating season lasting from october 1 through april 30 a slab insulated with 1 inch of foam would lose 7 1 million btu more than a slab insulated with 2 inches of foam.

Additionally a layer of rigid foam is used between the framing and ventilation space behind the brick cladding. A continuous layer of horizontal insulation reduces heat loss in the winter and it reduces condensation of humid air on the slab during the summer. Eps 3 xps 2 faced or unfaced. Prodex exhibits less than 9 compression in thickness when subjected to loads associated with standard concrete floor systems.

Faced 2 unfaced 3 insulation features. Under slab 5 more ways to filter. Rigid insulation is placed horizontally under the slab perimeter and vertically in the joint at the slab edge. Continuous insulation is applied directly to the underside of the slab and extends inward horizontally from the perimeter for the distance specified or continuous insulation is applied downward from the top of the slab and then extends horizontally to the interior or the exterior from the perimeter for the distance specified.

This technique can limit inward vapor movement when the sun shines on damp bricks. Slabs that include embedded hydronic tubing for radiant heat always need a continuous layer of horizontal insulation under the entire slab. View product details. Get all the construction.

Below grade under slab with foamular xps insulation. Under slab insulation specifically designed to withstand the weight of a concrete slab and the rigors of foot traffic. Where the heating is likely to be turned on and off such as in new build domestic properties and a faster thermal response is required the floating floor arrangement of insulation above the slab can be more appropriate.