Up to one quarter of a building s energy loss is due to lack of insulation in below grade areas including the foundation and under slabs.
Rigid insulation over concrete slab.
Eps 3 xps 2 faced or unfaced.
If the top of the vertical rigid foam installed at the slab perimeter is visible on the interior of the house it can be hard to install flooring.
Contractors are increasingly called upon to install rigid foam insulation under concrete slabs and on building foundations.
With the slab on grade for this home we started with a typical frost wall foundation.
A careful evaluation of these materials performance attributes against the project s needs can dramatically shrink labor and material costs.
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.
Concrete 4 existing drywall 2 plywood 5 wood 3 sheathing type.
Frost wall and prep.
For installation on concrete foundations and under floor slabs the rigid foam insulation you choose can make a difference of tens of thousands of dollars on a project.
Insulating over a structural slab thinking outside the slab.
Where insulation is positioned above the slab the slab and dpm can be installed either way round.
For more information see how to insulate a basement wall 1.
Insulation for concrete slab floors if the insulation is going below the slab the damp proof membrane dpm is laid next followed by the insulation a.
Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department.
Are you using open cell spray foam or closed cell spray foam.
R 7 7 rigid foam insulation model 310891 18 35 18 35.