Insulation Over Concrete Slab

There are several ways to install subflooring above the rigid foam.

Insulation over concrete slab.

If your basement slab lacks sub slab foam you ll have to install the insulation above the slab. Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system. Concrete 4 existing drywall 2 plywood 5 wood 3 sheathing type. 3 clean the surface of the slab thoroughly then apply a coating of asphalt primer to help the asphalt cement bond.

Insulating over a structural slab thinking outside the slab. In these cases adding insulation above the slab is a quick and cost effective way to improve the energy efficient and comfort of a building. Eps 3 xps 2 faced or unfaced. Learn how to install beautiful hardwood floors over a concrete slab.

One option for insulating on top of a slab is to apply rigid foam insulation directly to the slab. How to insulate a garage floor above a concrete slab insulation on slab. Follow label directions and allow it to dry thoroughly. 4 where rainfall can be heavy use a fine tooth trowel to apply cold cut back asphalt mastic over the entire slab use about one gallon per 100 square feet of floor.

The reflectix concrete slab insulation is an innovative easy to handle product that increases the energy efficiency of radiant floor and snow melt systems under concrete. The foil within the product acts to spread out the heat signature of the heating coils. With the slab on grade for this home we started with a typical frost wall foundation. Another option is to insulate the slab after the framing is complete so the slab is protected from the weather.

One solution would have been installing rigid insulation under the slab turning it up on the. Get free shipping on qualified under slab foam board insulation or buy online pick up in store today in the building materials department. You can use either one or two layers of plywood or osb and the subflooring can either be fastened to the concrete with long tapcon screws or it can simply float above the foam. Over concrete slab for buildings with existing foundations it may not be possible to insulate below the concrete slab.

Amvic multipurpose high density insulation kit r10 2 3 8 in. Although building codes differ by region builders typically use r5 and r10 insulation under the concrete slab but floors insulated with r20 contain the heat in your basement far better than those insulated with lower r values.