Rigid Insulation Under Slab

You can even place it under the foundation slab.

Rigid insulation under slab.

If your slab is heated it s a good idea to increase the r value of the vertical and the horizontal insulation to at least r 20. Owens corning enclosure solutions. 4 10 2012 3 climate zones e301 1 6 5 8 4 slab r value table 402 1 1 insulation and fenestration requirements by component e402 1 1 climatezone slab r valued 4 10 2 ft 5 10 2 ft 6 10 4 ft 9. Install it anywhere from the roof to the foundation.

Slabs that include embedded hydronic tubing for radiant heat always need a continuous layer of horizontal insulation under the entire slab. They keep your home at a comfortable temperature without the need to crank your heat. Below grade under slab system with foamular rigid board insulation. As insulation becomes increasingly common on foundations and under slabs understanding the performance and cost factors of the different materials is important for successful bids and profitability.

View product details. 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. Eps offers a number of advantages over the more commonly installed xps including having the highest r value per dollar among rigid insulations.

R 7 7 rigid foam insulation model 310891 18 35 18 35. Products in this solution. 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.

Insulation located below grade as required in climate zones 4 through 8 should extend the length specified in the table by any combination of vertical insulation insulation extending under the slab or insulation extending out perpendicular to the building insulation extending perpendicular away from the building should be protected by. One of the best ways to save money on rigid foam insulation installed under concrete slabs is to ensure the material is not over engineered. 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. Water resistant rigid board for under concrete slab insulation and slab support in traffic bearing applications.

Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department. A common design assumption leads to specification of rigid foam strengths that are many orders of magnitude higher than necessary which can double the insulation material cost.