Cost to tear off replace roof the removal of an old roof can cost 1 to 5 per square foot.
How much to replace a roof per square.
Roof installation cost ranges from 400 to 550 per square depending on the roof size and materials used in reroofing.
This can vary based on geographic location and labor rates in your area.
The cost of a new asphalt shingle roof is on average nationwide 260 to 280 per roofing square with new roofs using architectural shingles ranging from 275 to 300 per square.
This insulation significantly increases the cost but is often a necessary item due to state and local building codes as well as energy efficiency concerns.
The national average cost to replace a roof is 7 211 with most homeowners spending between 4 707 and 10 460.
Most roofers will charge somewhere around 300 per square for labor.
Thus at the mid point of the above price range you can expect to pay about 4 50 per sq.
Average cost to replace a flat roof is about 8 00 per square foot it includes tear off of the old material and 2 of polyiso rigid insulation board with 12 r value.
The job averages 1 000 to 1 500.
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.
Roofing over does present some issues however.
However some roofing companies may charge upwards of 1 000 a square for an asphalt shingle roof.
That said on average most contractors will charge between 3 50 and 5 50 per square foot or 350 to 550 per square 100 sq ft to install or replace an asphalt shingle roof on a typical house.
Some contractors charge hourly which can run from 40 to 80 per hour.