Insulation Under Concrete Slab Detail

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

Insulation under concrete slab detail.

Slabs that include embedded hydronic tubing for radiant heat always need a continuous layer of horizontal insulation under the entire slab. Below grade under slab with foamular xps insulation. Prodex exhibits less than 9 compression in thickness when subjected to loads associated with standard concrete floor systems. View product details.

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. Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department. Rigid insulation is placed horizontally under the slab perimeter and vertically in the joint at the slab edge. Additionally a layer of rigid foam is used between the framing and ventilation space behind the brick cladding.

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. Insulation below the slab suits continuous low level heating gradually warming the thermal mass of the concrete and sustaining it at a consistent temperature. This technique can limit inward vapor movement when the sun shines on damp bricks. Under slab insulation specifically designed to withstand the weight of a concrete slab and the rigors of foot traffic.

Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications. View product details. Under slab 5 more ways to filter. 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.

Products in this solution. 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. Get all the construction.