Include dormers the small outjuttings over attic.
Look up square foot of my roof.
Measure and mark the square footage of each triangular section carefully as these tend to differ in size.
If this distance measures 4 inches you have a 4 in 12 pitch.
Because each 100 square feet of roof is one.
The reason this is important is because this angle will greatly affect the square footage of the roof deck.
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.
Hope it helps alan j warshawer august 13.
Calculate each plane separately.
Pitch measurement method 2 2.
It is often compared to slope but is not exactly the same.
8 inches and you have an 8 in 12 pitch.
If you re researching a new roof it s easy to become overwhelmed.
Convert the area to roofing squares.
How to calculate square feet of a roof step 1.
It will also give you the perimeter of the shape of the roof.
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.
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.
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.
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.
Using this tool will be very helpful for you in finding out the acreage or the tract of land of your property.
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.
It will also show the perimeter of the shape.
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.
Multiply the length and width of each square or rectangle shaped plane.
Measure the length and width of every roof plane or surface.
10 add up the areas of each section to get your total square footage.