Flat Roof Insulation

Flat roof insulation adds a layer of insulation to a flat roof to help stop heat escaping through the roof. It is often used on extensions, garages, porches and other parts of the home with a flat roof above. By improving insulation in this area, it can help keep the room below warmer in colder weather and more comfortable during warmer months.

Energy Saving Trust explains that roof insulation reduces heat loss through the roof, and for flat roofs it is ideally installed from above. This is often known as a “warm roof” system, where rigid insulation boards are added above the roof structure and below the waterproof layer.

Before any work starts, your roof will usually be checked to make sure it is suitable and in good condition. The survey may look for signs of damp, damage or moisture build-up, and help decide the best way to insulate the roof. In many cases, insulation is fitted above the roof surface, then finished with a waterproof layer on top.

In some situations, insulation may be fitted from inside, but this needs to be carefully designed because poorly installed insulation underneath a flat roof can increase the risk of condensation. Because flat roof insulation is more specialist, professional installation is normally needed.

All materials used meet the latest UK fire safety and building regulation standards.