Rigid Insulation For Slab

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Rigid insulation for slab.

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. 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. Additional insulation is applied along the edges of the slab because that is a primary surface for heat loss.

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. Rigid insulation is one of the best tools to reduce your energy costs. Rigid foam insulation also known as insulating boards provide high r values. R 7 7 rigid foam insulation model 310891 18 35 18 35.

Install it anywhere from the roof to the foundation. Installing slab insulation around the perimeter of the slab will reduce heat loss and make the slab easier to heat. They keep your home at a comfortable temperature without the need to crank your heat. 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.