WHAT TYPE OF FLOOR INSULATION IS REQUIRED?
It is essential that floors which are ground bearing or suspended over an un-heated space with or without underfloor heating are properly insulated to meet the U-values requirements as stated in the Building Regulations Part L1/L2 2002. The value is currently set at 0.25 W/m 2K. The thickness of insulation required to achieve this will vary according to the type of floor, size of floor and type of insulation selected. Generally, an insulation with a high thermal resistance is preferable, to reduce the build height of the total floor construction.
