Cost can add up quickly especially if you re a novice and have never attempted a modified bitumen roof installation before.
Modified bitumen roof replacement cost.
You can quickly estimate flat roof replacement costs for the following materials.
Modified bitumen is installed in multiple layers multi ply roof each of which is torched to the surface below at every turn of the roll.
The homewyse modified bitumen roof cost estimates do not include costs for existing roof tear off roof framing repairs or enhancements dry rot repairs decking replacement or gutter drain replacement.
The average cost to replace a flat roof is 5 10 per square foot.
A modified bitumen roof is made up of sheets that are comprised of multiple layers including bitumen or tar.
The homewyse cost estimates include all typical costs for delivery underlayment counter flashing soffit and ridge vents plumbing jacks.
Average cost to have flat roof installed is about 7 500 1 500 sq ft.
Flat roof costs 8 000 16 000 depending on the material you choose.
Because of its initial cost and material properties the modified bitumen roofing system was almost exclusively used for commercial and industrial roofing applications.
I would strongly recommend you hire a licensed and insured roofing contractor to perform the installation for you.
One of the biggest disadvantages however is that many major commercial roofing contractors have stopped installing them mostly due to the surge in popularity of tpo roofs.
The average cost of a built up roof installation is 3 50 7 per square foot.
Modified bitumen flat roofs.
Single ply membranes tpo pvc epdm rubber.
Quick facts and cost installed.
In direct contrast to the layered approach of the built up roof the modified bitumen system utilizes only one layer of rolled material which can be made of various compounds and installed one of two ways.
Installing a simple 1 600 sq ft.
Pvc single ply membrane roof.
Modified bitumen roofing costs.
They are generally heated with a blow torch when rolled out onto the roof which adheres them in one step.
Modified bitumen roof total average cost per square foot.