If you have a 2 story house you divide total square footage by 2 before multiplying by 125.
Roof estimate of 4500 square foot house.
5 6 6 20 per square foot.
10 12 per square foot.
In addition to the new roofing material you may also need to replace other important parts of the roof such as fascia boards.
The typical factor is 25 more roof than house square footage.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
This free roofing calculator estimates the area of a roof and the amount of materials required to replace or build said roof.
This is simply 100 square feet of roof.
The slope of your roof will factor into how many additional square feet are on your roof.
As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house.
Roof size calculations the hard way.
Roofing over does present some issues however.
Roof pitches in.
Roofing material pricing is in 10 by 10 foot 100 square feet sections.
According to the united states census the average roof is 17 squares or about 1 700 square feet.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
When calculating roofing costs per square asphalt shingles run from 350 and 500 per square metal or tin roofs costs 600 to 1 200 per square and concrete or clay costs between 1 200 and 1 800 per.
Roofing contractors charge different prices in different regions of the us.
Depending on the material the price can range from 65 to 350 per section.
Measure your house at ground level then add in the roof s overhang for greater accuracy.
15 25 per square foot.
Take your ground floor square footage and multiply by 125.
Roofing cost per square foot.
A typical homeowner spends between 5 209 and 10 249.
The average national price for roof installation is 7 727.
To find the squares divide the overall roof area by 100 and then round up.
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.
6 5 8 per square foot.
Now based on the info provided your home s floor plan is roughly 1 000 sq ft.
How to estimate roofing materials.
4 5 5 per square foot.
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This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.