Rigid Insulation For Slab

Rigid insulation is one of the best tools to reduce your energy costs.

Rigid insulation for slab.

R 7 7 rigid foam insulation model 310891 18 35 18 35. According to doe s building energy codes program helpdesk 1 slab on grade insulation has been one of the more commonly addressed topics on code compliance for the past several years. Set your store to see local availability add to cart. They keep your home at a comfortable temperature without the need to crank your heat.

Continuous insulation is defined in 90 1 as insulation that is continuous across all structural members without thermal bridges other than fasteners and service openings. Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications. Depending on your location you may need rigid foam insulation under and around the edges of the slab by martin holladay issue 245 aug sept 2014 while walls and roofs have long been a point of focus foundations seem to be the final frontier when it comes to insulation. Rigid foam insulation also known as insulating boards provide high r values.

For under slab applications the rigid foam insulation typically should be installed over a gravel base with a poly vapor diffusion retarder between the gravel and insulation. Installing slab insulation around the perimeter of the slab will reduce heat loss and make the slab easier to heat. Install it anywhere from the roof to the foundation. Additional insulation is applied along the edges of the slab because that is a primary surface for heat loss.