What insulation is best for a flat roof?

For warm flat roof insulation, you can use PIR insulation, while cold flat roofs can be insulated using loft insulation rolls.

Can you insulate under a flat roof?

Yes. You can add insulation to the underside of the flat roof. However, when applying insulation to an existing flat roof, some of the original frameworks must be removed and replaced.

How do you insulate a flat roof UK?

You can use rigid insulation boards like PIR insulation to insulate flat roofs. It can be placed on top of the weatherproof layer or directly on top of the timber roof surface.

What is the building regulations for a Flat roof insulation?

When insulating flat roofs you must adhere to building regulations. The aim is to achieve a U value of 0.18W/m2K or lower while insulating flat roofs. Refer to Part L for the current building regulation for flat roofs.

What are the different types of flat roof insulation available?

Warm flat roofs can be insulated using PIR boards or other insulation boards, along with a vapour barrier. A cold flat roof can be insulated using loft insulation rolls.