10 add up the areas of each section to get your total square footage.
Look up square foot of my roof.
This tool is useful for finding the approximate acreage or a tract of land the square footage of a roof or any other instance where you need a good estimate of the area of something.
If the house has an irregular shape measure each part separately figure the separate areas and add them together.
As you add points the area will be updated below and converted into acres square feet meter kilometers and miles.
Multiply the length and width of each square or rectangle shaped plane.
It will also give you the perimeter of the shape of the roof.
Hope it helps alan j warshawer august 13.
Convert the area to roofing squares.
Pitch measurement method 2 2.
It is often compared to slope but is not exactly the same.
If you have a roof section that s 30 feet 9 1 m long and 12 feet 3 7 m high multiplying those dimensions would give you an area of 180 square feet 17 m 2.
It will also show the perimeter of the shape.
If this distance measures 4 inches you have a 4 in 12 pitch.
Measure the length and width of every roof plane or surface.
On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.
The reason this is important is because this angle will greatly affect the square footage of the roof deck.
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.
How to calculate square feet of a roof step 1.
Include dormers the small outjuttings over attic.
Using this tool will be very helpful for you in finding out the acreage or the tract of land of your property.
8 inches and you have an 8 in 12 pitch.
Each time you add points the area will update and there is a box below that will convert this into acres meters kilometers miles and finally square feet.
Measure and mark the square footage of each triangular section carefully as these tend to differ in size.
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.
This is the steepness of your roof.
If you re researching a new roof it s easy to become overwhelmed.
A square is 100 square feet or an area 10 x10.
Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.