Insulation Over Concrete Floor

One option for insulating on top of a slab is to apply rigid foam insulation directly to the slab.

Insulation over concrete floor.

Seal all the seams of the foam board. Insulation is laid on the concrete and covered with a screed. Also check the floor for smoothness and level. 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.

Address uneven floors prior to installing any floor system the low spots should be fixed with concrete patch or floor leveler. If you know you have issues with moisture tend to those problems before installing the insulation. Levelling floors a layer of insulation can help to level badly finished concrete floors. In this scenario a rigid foam insulation is usual and as you d want the same u value in the roof we need the same thickness of insulation 180mm.

Another option is to insulate the slab after the framing is complete so the slab is protected from the weather. Be sure to fix any problems in the concrete floor such as cracks spalls. Cons of insulation boards. Lightweight rigid polyisocyanurate pir foam insulation boards such as those manufactured by celotex are among the most thermally efficient commonly available.

There will be a damp proof membrane under the insulation and possibly a second membrane on top depending on the type of screed. Insofast eps foam panels provides a one step solution to finishing a floor with embedded studs built in to the. You can attach wood sleepers to the floor fill the gaps with rigid foam insulation and then apply your finish flooring. Or as demonstrated here you can cover the slab with rigid foam insulation add two layers of plywood and then add the finish flooring.

There are two ways to handle insulating concrete floors. Here we look at why insulating concrete floors is so important and offer tips on choosing and installing concrete floor insulation. How to insulate a garage floor above a concrete slab insulation on slab. Thickness many types of insulation board are at least 50mm thick raising the level of the floor.

You may need to grind down significantly high spots to ensure an even surface. Insulated sub floor first you need to be sure the floor is clean. The insulation is then laid followed by a polythene separating layer and either a concrete screed or tongue and groove chipboard ready to receive the specified floor finish. Once the basement is prepped choose an insulation to reduce heat loss and moisture transfer from the slab.