With most professional licensed insured roofing contractors the installation cost is usually about 60 of the total cost.
Townhouse roofing estimate.
If you are replacing your current roof add 125 to 500 per roofing square for old roof removal.
Additionally the cost of replacing a roof is dependent on water damage.
For example an asphalt estimate for property sitting on 1 200 square foot is comparatively lower to that of metal that goes for a higher sum.
Roofing townhouse roof replacement cost.
It cannot be determined without a roofer examining the underlying roof deck.
For an average roof of 17 squares according to the united states census which puts average home size at 2 200 square feet and two stories roofing materials typically range from 2 500 to 25 000.
Roofing material is estimated by the square which is equal to 100 square feet.
This gives us a 3d roof area of 1 625 sq ft.
Assuming this is a hip roof we multiply this by 1 1 which gives us roughly 18 squares or 1 800 square feet of the roof surface.
The average roof is 3 000 square feet or around 30 squares.
Thus a 3 tab composition shingle roof will cost an average of 350 to 450 per square to install.
Roofing materials alone cost anywhere from 100 per square to 1 000 per square depending on the type you choose.
Now assuming an average pitch of 9 12 we multiply the 2d area of 1 300 by 1 25.