A BASF insulated flooring system has been used in the refurbishment of a Victorian stable block at BRE’s headquarters in Watford, Hertfordshire, to provide an overall floor U-value of 0.14W/m2K

The company claims this is considerably less than the proposed improvements for the new Part L of the Building Regulations.

The conversion of the stable block highlights the significant contribution energy-efficient refurbishment can make in reducing UK carbon emissions, with the aim of encouraging industry to raise standards of practice.

Uninsulated floors can account for as much as 10% of the heat loss from a building. BASF worked closely with BRE to source a floor insulation solution that would fully comply with the proposed new Part L, which stipulates a U-value target of 0.22W/m2K.

Waterproofing is essential for this age of stock, so the floor was made fully watertight using BASF Thoroseal Super. This was also extended up the walls to form a damp proof course.

The firm’s Styrodur C insulation board - made from extruded polystyrene and fully bonded and joined together using tape - was chosen to ensure the floor met the thermal requirements.

In order for the floor to be finished in one weekend to make way for follow-on trades, the substrate was finished with BASF PCI Novoment Z3, a screeding solution with a rapid cure time.

PCI Latex Pro was used to provide a level finish to the flooring system.