Best Underfloor Insulation For Concrete Floors

Using a high quality rubber underlay will further add to the feeling of warmth.

Best underfloor insulation for concrete floors.

Solid floors such as concrete or screed should in principle lose less heat than suspended floors. The silver foil covering acts as a vapour barrier or vapour control layer and also stops moisture from the freshly poured concrete slab penetrating the insulation. Concrete floor insulation can however be installed and usually consists in a layer of solid insulation which is placed directly on the floor. 4 22 p m2 inc.

Typically the insulation would be situated below the slab and below the damp proof membrane for heavy duty use whilst normal domestic buildings would have a. There will be a damp proof membrane under the insulation and possibly a second membrane on top depending on the type of screed. But they can still be insulated by laying a new layer of rigid insulation on top. Insulated under floor slab.

R2 0 polyfloor underfloor insulation 4 83 p. Ametalin floor insulation silverfloor 2 56 p m2 inc. Polyfloor underfloor insulation from. Ametalin floor insulation thermalfloor 8 99 p m2 inc.

Cement 3 concrete 4. They keep the depth of the floor construction down meaning less excavation and are easily handled and laid to quickly insulate large areas. The underfloor insulation boards must be fully supported over their entire area with no voids and no projections. But it isn t cheap and it can cause additional problems such as raising the floor level too much.

A cheaper and easier option for insulating a concrete floor is to line it with chipboard sheets and then carpet over the top. If your concrete floor is for industrial or heavy duty applications then any insulation you use needs to have a high compressive strength to take the weight of whatever is above. R 10 scored squared edge insulation sheathing. Insulation is laid on the concrete and covered with a screed.

This would usually be covered by chipboard plus your desired floor covering. Lightweight rigid polyisocyanurate pir foam insulation boards such as those manufactured by celotex are among the most thermally efficient commonly available insulation materials. 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 for insulating your concrete floor are some more flexible materials such as knauf rock wool insulation slabs or rockwool insulation slabs which also offer a level of sound insulation apart from known as being great and versatile insulators.

R1 5 polyfloor underfloor insulation 3 84 p m2 inc. Insulate your garage to reduce energy bills and protect your garage against harsh outdoor temperatures.