How To Lay A Concrete Floor With Insulation Uk

Get an understanding about the importance and what is involved in insulating a floor slab.

How to lay a concrete floor with insulation uk. Laying a concrete floor is a very labour intensive task and cannot be performed alone so ensure you have a few hands to help you before you begin. Wood laminate flooring can be installed directly on top of floorfoam. The math is pretty simple the thicker the concrete floor insulation material the deeper the slab will have to be. Insulating the floor in a renovation or conversion is challenging but even more important as it is unlikely that there is adequate insulation in the existing sub floor.

Insulation is laid on the concrete and covered with a screed. Lightweight rigid polyisocyanurate pir foam insulation boards such as those manufactured by celotex are among the most thermally efficient commonly available. Super insulating an existing floor may pose problems with room heights in many buildings. Insulating a floor slab how to lay insulation under a concrete floor slab.

This isolates the slab below from any floor covering applied above. 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. If you have an existing concrete floor or newly laid floor slab with minimal levels of damp you can lay a slimline floor membrane over the top and lap it up the walls or a 1200 gauge dpm. Before you lay your concrete floor you ll need to take a few things into consideration the first of which will be your building regulations.

Insulating a concrete floor alternative options. 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. Once the concrete has been levelled and has set the insulation will go down if it didn t go down before. The method shown above is the best way to insulate a concrete floor without digging it up and laying it again with insulation added below the finished surface.

Most modern buildings have insulation built into the floor structure. If a vinyl or lino is being used we would advise the use of a plywood over the top of the floorfoam. Typically 75 100mm of rigid. Once your concrete floor has been covered with floorfoam next you can install your desired flooring.

How to lay insulation under a concrete floor slab and advice on target u values damp proof membranes and underfloor insulation boards. On the other hand if you are laying insulation on top of the existing slab than you will need to make sure that there are no construction elements getting in the way such as skirting boards or ceiling heights for instance. If your concrete floor needs to be reinforced in areas which are likely to be heavily loaded such as garages then a metal mesh standing on plastic feet will be put down before the concrete is poured. How to lay concrete with insulation.