Polyisocyanurate Roof Insulation Cost Per Square Foot

Plywood roof sheathing 15 32 inch thick approximate weight.

Polyisocyanurate roof insulation cost per square foot.

Insulation cover board per inch of thickness. So if you need 18 r value you will need 3 inches of iso which comes out to 135 150 per 100 sq ft. About 25 of your roofing costs will go to insulation. Polystyrene eps insulation board.

R value 6 0 per inch absorbs less than 1 of water far less than any other rigid insulation. Apa the engineered wood association. Polyiso is unique in that the r value increases with the thickness of the foam so three inches of polyiso has a higher r value per inch than two inches. Simply enter your zip code and the square footage next click update and you will see a breakdown on what it should cost to have rigid foam insulation installed in your home example.

Less common is fiberboard a roofing underlayment with some insulation value expanded polystyrene eps and extruded polystyrene xps. Free online r30 insulation cost guide breaks down fair prices in your area. Cost per foot for insulation 0 32 per square foot for 1 inch thickness 6 r. Get 2020 r30 insulation price options and installation cost ranges.

Highest r value per inch of any insulation product. Input project size product quality and labor type to get polyisocyanurate insulation material pricing and installation cost estimates. If you want to have actual insulation it will cost you a pretty penny. Additionally i use roofing 7 screws 220 for a box of 1000 and double 1 3 strapping about 250 for whole house.

The average cost of flat roof insulation is 0 67 per square foot for 1 inch thick polyiso with 6 r value. In my case i use 5 inches 30 r of polyiso so my cost per foot is 1 60 per square foot. There are various types from which to choose. High quality rigid foam insulation that is properly installed will greatly improve ventilation eliminate drastic temperature fluctuations inside the home and protect from leaks.

For roofs with heavier foot traffic opting to add in a layer of 100 psi hd coverboard is a great way to strengthen the rigid insulation. Benefits of polyisocyanurate insulation. Fiber board has very little insulating value. A 10 x 10 area equal 100 square feet.

Polyisocyanurate insulation board per inch of thickness. Input project size product quality and labor type to get r30 insulation material pricing and installation cost estimates. Get 2020 polyisocyanurate insulation price options and installation cost ranges. The most common is polyiso polyisocyanurate.

1 inch 6 r value thickness of polyiso rigid foam insulation costs 45 50 per 100 sq ft.