If you re researching a new roof it s easy to become overwhelmed.
Look up square foot of my roof.
If this distance measures 4 inches you have a 4 in 12 pitch.
Because each 100 square feet of roof is one.
A square is 100 square feet or an area 10 x10.
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.
It is often compared to slope but is not exactly the same.
Measure and mark the square footage of each triangular section carefully as these tend to differ in size.
If the house has an irregular shape measure each part separately figure the separate areas and add them together.
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.
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.
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.
Convert the area to roofing squares.
Pitch measurement method 2 2.
This is the steepness of your roof.
As you add points the area will be updated below and converted into acres square feet meter kilometers and miles.
How to calculate square feet of a roof step 1.
10 add up the areas of each section to get your total square footage.
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.
The reason this is important is because this angle will greatly affect the square footage of the roof deck.
Include dormers the small outjuttings over attic.
Calculate each plane separately.
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.
Hope it helps alan j warshawer august 13.
Measure the length and width of every roof plane or surface.
8 inches and you have an 8 in 12 pitch.
Roofers use this because it s easier to say the.
Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.