Roofing over does present some issues however.
Average price of a roof replacement.
Nationally the average homeowner spends about 8 042 to install a new roof and most spend within a range of 5 352 and 10 830 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 to replace the roof on most homes is 4 000 to 10 000 and most spend about 8 000.
The cost of materials for a basic 3 tab 25 year shingles could range anywhere from 150 to 200 per square for all the necessary materials.
The average price he says is 12 000 to replace an architectural shingle roof in his market.
The cost can be more for larger homes homes with complex roof designs or when installing more expensive materials.
Expect to spend 1 500 to 3 000 to remove your current roof before installing a replacement.
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.
In addition to composition shingles materials may also include any necessary roofing felt underlayment ice and water shield nails ridge vent and roof flashing details such as valley drip edge gable and chimney flashing and caulk.
The national average cost to replace a roof is 7 211 with most homeowners spending between 4 707 and 10 460 roof installation cost ranges from 400 to 550 per square depending on the roof size and materials used in reroofing.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.