A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.
Roofing estimates in my area.
However if you use premium materials such as metal wood shingles clay tile etc the cost of your roof will be at least 9 500 16 000.
Roofing material is estimated by the square which is equal to 100 square feet.
To accurately calculate the area of your roof you must first determine its slope or pitch.
The average roof is 3 000 square feet or around 30 squares.
For estimating purposes we also assume that there is a chimney a couple of dormers and two layers of old shingles that need to be torn off and removed before a new roof can be installed.
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See costs in your area start here enter your zip code the average roof replacement cost is 4 200 6 600 on a 1 600 sq ft.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.
This gives us a 3d roof area of 1 625 sq ft.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
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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.