Flat Roof Insulation Board

Retroplus roof board is an expanded perlite mineral aggregate board.

Flat roof insulation board.

Flat roof insulation installation. The rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets. Here are the best insulation materials along with prices features and r values. The average cost of flat roof insulation is 0 67 per square foot for 1 inch thick polyiso with 6 r value.

You can expect to pay about 55 100 sq ft. Flat roof insulation is also used with conventional bur and mechanically or adhesively attached single ply and modified bitumen membranes when field applied cover boards are used. High quality rigid foam insulation that is properly installed will greatly improve ventilation eliminate drastic temperature fluctuations inside the home and protect from leaks. Utilizes an environmentally compliant blowing agent containing pentane hydrocarbon to enhance the thermal performance of the foam insulation.

Our range of high and optimum performance flat roof insulation products are suitable for use in a range of flat roofs. For a 1 inch board equivalent of 6 r value. Once the roof demo was complete and the flat roof was cleared of any remaining debris some rotted 2x material around the perimeter of the roof was replaced. It is top quality and the most cost effective product for your flat roof.

We recommend having at least 20 r value worth of material for optimal energy efficiency. While expensive the best insulation is polyiso rigid foam. Flat roof insulation is unfaced polustyrene and is suitable for use with loosely laid single ply membranes.