Insulation Under Concrete Slab Roof

120 25 infrastop 48 x 125 under concrete slab reflective layered bubble foil insulation.

Insulation under concrete slab roof.

It can be tempting to cut the insulation at ground level to avoid seeing it but this creates an area for heat to move in or out of the home and there will be heat loss through the floor and foundation if not fully insulated. Ecofoil under slab insulation consists of a layer of metalized foil centered between a layer of bubble insulation laminated to each side with a permanent bond. Many increase the under slab insulating foam board thickness to 3 or 4 inches at the outer 2 to 4 feet of the slab. Eps insulation blocks can be custom cut into a variety of shapes and sizes to meet wide ranging job specifications.

This encapsulates the reflective foil sheet preventing it from being exposed to the ground or the concrete ensuring the life and performance of the product. Slabs that include embedded hydronic tubing for radiant heat always need a continuous layer of horizontal insulation under the entire slab. The reflectix concrete slab insulation is an innovative easy to handle product that increases the energy efficiency of radiant floor and snow melt systems under concrete. Creating a void between the old ceiling and new is better but ideally you need to eventually consider insulating the top of the concrete roof with solid insulation and a better covering grp or epdm.

In cold climates it is advisable to use a minimum of 2 inches of extruded polystyrene under the slab. Perimeter slab insulation should cover as much of the exposed concrete as allowed by code. Designers generally insulate both directly under the slab and around the perimeter as well. 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.

The concrete deck can offer greater speed of roof construction which is an important consideration on many larger commercial projects. The foil within the product acts to spread out the heat signature of heating coils resulting in a more even floor slab surface temperature. 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. Infrastop 48 x 100 under concrete slab reflective layered bubble foil insulation 139 25 as low as.