Roofing over does present some issues however.
Normal price for roof replacement.
Roof installation cost ranges from 400 to 550 per square depending on the roof size and materials used in reroofing.
Roofing over costs around 2 to 3 per square foot as opposed to the average full replacement cost of 4 50 so roofing over a 1 500 square foot roof may only cost 3 000 to 4 500.
Or 450 per square to replace an asphalt shingle roof on a typical single family house.
A typical roof replacement quote will normally include the removal and disposal of up to two layers of old shingles.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.
Roof replacement costs nationally the average homeowner spends about 8 041 to install a new roof and most spend within a range of 5 346 and 10 817.
The national average cost to replace or install a roof is 6 771 and prices typically range from 4 700 to 9 200.
Thus at the mid point of the above price range you can expect to pay about 4 50 per sq.
There are certain cities like denver that are higher than average at 9 000 and others that are below average like austin tx at 7 000.
The cost can be more for larger homes homes with complex roof designs or when installing more expensive materials.