If you are replacing your current roof add 125 to 500 per roofing square for old roof removal.
Roof for a 1800 square footage house.
When a roof needs to be replaced one of the first steps you may perform is figuring out the roof area.
It is often compared to slope but is not exactly the same.
4 7.
You can also get a rough estimate by looking at the square footage of your house.
The average roof is 3 000 square feet or around 30 squares.
This chart is a general guideline that covers tiny houses to average size homes.
A new asphalt shingles roof for a typical 2 000 sq.
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.
How do you calculate square footage for a roof.
This price range.
Roofing material is estimated by the square which is equal to 100 square feet.
Roof pitches in.
Measure your house at ground level then add in the roof s overhang for greater accuracy.
Enter the approximate value for how many square feet the house has in the first number box.
Single story ranch house can range in price from 8 500 to 16 500 fully installed.
Slope of the roof.
A 4 12 pitch is relatively easy to walk an 8 12 is very difficult to walk and a 12 12 is impossible to walk.
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.
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 square.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
Roofs with less slope need less shingles and roofs with more slope need more shingles.
Across the us a typical architectural asphalt shingle roof will cost between 4 00 and 7 00 per sq.
The estimates above for how many square feet of roofing average single story and two story homes have are based on a roof with a 6 12 slope.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Roofing cost per square foot.
This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.
Basic removal of existing roofing material underlayment flashing and trims to prepare a fresh base for new material.
In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.
Estimate per square foot.