How To Lay A Concrete Floor In An Extension

Once the house extension is built floor insulation and a screed layer of around 75mm with ufh pipes if required is then laid above the concrete slab.

How to lay a concrete floor in an extension.

Tiles or floor finish of choice is then laid on the screed. In part 3 of skill builder s series following an extension build it s time for the suspended beam and block flooring. This week we do the slab on our awkward extension job. Most commonly builders lay the hardcore sand dpm and concrete slab finishing well below finished floor level.

Concrete joists with lips on either side about halfway up are placed on the floor. Larger extensions often benefit from a suspended concrete floor almost all new builds are now built using this system as it is quicker you can walk on it sooner and it reduces any risk of damp coming up through the floor.