How To Insulate An Existing Concrete Slab Floor

Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient.

How to insulate an existing concrete slab floor.

Slab insulation requirements are shown in table r402 1 2. How to insulate a garage floor above a concrete slab. Add wire insulation hangers as needed to ensure a more secure hold. Why it s important to insulate a concrete floor in the basement three key benefits of insulating the concrete floors in the basement are heat loss prevention moisture prevention and a higher level of comfort.

But when adding insulation to an existing slab the vapor barrier is laid over the top of the slab before the foam insulating panels are installed. If you know you have issues with moisture tend to those problems before installing the insulation. Insofast s insulation panels provide an easy way to insulate a cold concrete floor. 1 to prepare for insulating the floor first evaluate the condition of the concrete.

The first thing to consider when looking into different types of concrete floors is why it s so important to insulate the floor slab. Also check the floor for smoothness and level. The panels can be applied to every surface from floors to walls to ceilings. Once again a thinner insulation such as vacuum insulation may be a more cost effective or more practical option in the long run.

If however you are insulating on top of an existing slab then you will need to consider things such as whether you need to replace or remove skirting boards door jamb heights ceiling heights etc. Place it into the space between your existing floor joists relying on friction to hold it in place. You may need to grind down significantly high spots to ensure an even surface. R 5 insulation shall be provided under the full slab area of a heated slab in addition to the required slab edge insulation r value for slabs as indicated in the table.

Insulate existing concrete. Check out this article for a list of slab edge insulation solutions and episode 125 for my interview with henry edney of maxraft. Dealing with the edges the foam insulation and two layers of plywood can add as much as 2 inches of height to the garage floor. Insofast is a diyers dream a simple way to install insulation needing only a hand saw utility knife and caulking gun.

The slab edge insulation for heated slabs shall not be required to extend below the slab.