How Much Does It Cost To Insulate A Flat Roof

40 to 60 per m.

How much does it cost to insulate a flat roof.

30 to 40 per m. Double garage flat felt roof no insulation. 70 to 115 per m. Flat roofs in general do not increase the resale value of the home but having a roof in good condition helps your home maintain its value.

Insulating the roof is a very smart investment. Considering the high energy costs and grants for roof insulation you can earn back the investment pretty fast. As heat rises 25 of the heath in a house gets lost through an uninsulated roof. The average cost of insulation panels the most common roof insulation is about 25 per square metre while spray foam insulation is at least 30 per square metre so we would estimate that the average cost of roof insulation in a property would be about 400 to 500.

Large extension flat felt roof with insulation. Usually homeowners spend about 25 of the total cost to install a flat roof on high quality insulation. The most efficient and best insulation used is rigid foam polyiso. Iso is available in a range of thicknesses that come in increments of 1 inch.

Insulating an inclined roof from the outside. Extension flat felt roof typical size with insulation. Cost of rigid foam board insulation. A flat roof vent costs between 300 and 600 on average while a roof drain can cost 40 100.

Insulating a flat roof from the outside. Insulating a flat roof from the inside. It accounts for over 60 of all installs. Between 35 and 50 per m.