How Much Does It Cost To Insulate A Flat Roof

Between 35 and 50 per m.
How much does it cost to insulate a flat roof. 70 to 115 per m. Considering the high energy costs and grants for roof insulation you can earn back the investment pretty fast. It accounts for over 60 of all installs. Double garage flat rubber roof.
Material cost labour cost. Insulating a flat roof from the outside. 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. Extension flat felt roof typical size with insulation.
Cost of rigid foam board insulation. Insulating an inclined roof from the inside. Insulating the roof is a very smart investment. 30 to 40 per m.
Double garage flat felt roof no insulation. The most efficient and best insulation used is rigid foam polyiso. A flat roof vent costs between 300 and 600 on average while a roof drain can cost 40 100. 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. 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. Iso is available in a range of thicknesses that come in increments of 1 inch. As heat rises 25 of the heath in a house gets lost through an uninsulated roof.