What is it?
Floor insulation is a method of insulating the air space between the floorboards of a house.
How does it work?
Mineral wool insulation, supported by netting, is laid between the joists of the floorboards. The insulation material reduces draughts and heat loss and is most likely to be used in older houses that are built on suspended timber floors.
Around 10% of the heat in a house can be lost through the floor. Floor insulation reduces this heat loss and lowers heating bills.
According to the Energy Saving Trust, the potential annual savings in a typical three bedroom semi-detached house could be up to £60.