Rigid Insulation Below Slab On Grade

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Rigid insulation below slab on grade.

An easy way to recognize eps on the jobsite is that it is commonly white. Two of the rigid foam insulations most commonly used below grade and under slabs are expanded polystyrene eps and extruded polystyrene xps. Set your store to see local availability add to cart. Many designers mistakenly assume that loads placed on slabs transfer through to the underlying insulation and soil at a 45 degree angle instead of a more.

View product details. The codes are silent about whether above grade slabs need to be insulated. These codes do not require any insulation for slabs that are more than 12 in. Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications.

Below grade under slab system with foamular rigid board insulation. Get all the construction documentation you ll need in a single click. Below grade under slab system with foamular extruded polystyrene rigid board insulation and radiant heating. For example installing a below grade insulation rated for 100 psi when only 40 psi is needed will nearly double the material cost.

Below grade need vertical insulation at the slab perimeter. Confirm with your engineer what strength is needed. Otherwise both codes require that slab on grade floors with a floor surface less than 12 in. It also discusses installation procedures for below grade and under slab insulation.

Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department. Products in this solution. 2015 iecc irc section r402 2 10 n1102 2 10 slab on grade floors. Specify this solution zip 4 3 mb.

R 7 7 rigid foam insulation model 310891 18 35 18 35. Two common rigid foam insulations specified for below grade applications are expanded polystyrene eps and extruded polystyrene xps.