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.
Roof replace estimate 4100 square feet.
Roofing over does present some issues however.
You will need to express this size in terms of square feet.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.
The average roof is 3 000 square feet or around 30 squares.
Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.
This free roofing calculator estimates the area of a roof and the amount of materials required to replace or build said roof.
Roofing material is estimated by the square which is equal to 100 square feet.
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The first step in a free roofing estimate is measuring the roof dimensions.
Roof installation cost ranges from 400 to 550 per square depending on the roof size and materials used in reroofing.