Polyisocyanurate Roof Insulation Cost Per Square Foot

Apa the engineered wood association.

Polyisocyanurate roof insulation cost per square foot.

So if you need 18 r value you will need 3 inches of iso which comes out to 135 150 per 100 sq ft. High quality rigid foam insulation that is properly installed will greatly improve ventilation eliminate drastic temperature fluctuations inside the home and protect from leaks. Cost per foot for insulation 0 32 per square foot for 1 inch thickness 6 r. 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.

Input project size product quality and labor type to get r30 insulation material pricing and installation cost estimates. The most common is polyiso polyisocyanurate. 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. Fiber board has very little insulating value.

Insulation cover board per inch of thickness. Get 2020 polyisocyanurate insulation price options and installation cost ranges. Plywood roof sheathing 15 32 inch thick approximate weight. Free online polyisocyanurate insulation cost guide breaks down fair prices in your area.

R value 6 0 per inch absorbs less than 1 of water far less than any other rigid insulation. In my case i use 5 inches 30 r of polyiso so my cost per foot is 1 60 per square foot. Polyisocyanurate insulation board per inch of thickness. 1 inch 6 r value thickness of polyiso rigid foam insulation costs 45 50 per 100 sq ft.

The average cost of flat roof insulation is 0 67 per square foot for 1 inch thick polyiso with 6 r value. Polystyrene eps insulation board. Polyiso has a high r value per inch compared to other insulation products. It ranges from 1 50 to 3 50 per square foot.

Input project size product quality and labor type to get polyisocyanurate insulation material pricing and installation cost estimates. Benefits of polyisocyanurate insulation. 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.

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. Additionally i use roofing 7 screws 220 for a box of 1000 and double 1 3 strapping about 250 for whole house. Highest r value per inch of any insulation product. There are various types from which to choose.

About 25 of your roofing costs will go to insulation.