Calculate the pitch of the roof.
How to measure roofs from ground.
Use a simple formula to approximate the square footage of triangular areas where two sections of a roof meet at each.
1 roof square 100 square feet.
The pitch is the steepness of the roof.
The first technique is referred to as the shingle count method which is used for estimating the measurements of all rectangular shaped sections of a roof.
Multiple the number of shingles times the width of each shingle which you can measure at ground level to get b in the figure below.
Use a pitch.
L h 2 area calculating an area of a triangle when estimating a roof.
Section off your roof and write your calculations down as shown below dotted lines.
Research other methods for measuring a roof from the ground online or talk to a roofing contractor.
Go all the way around your house and fill in your outline with your measurements making sure to account for overhang.
Measuring your roof from the ground 1.
To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high.
Then count the number of shingles to the peak of the roof.
To find the pitch of your roof you ll first.
Make a outline of your roof on paper.
Find the length and width of the building s exterior walls.
The length l times the height h of a triangle is twice its area a2.
Measure the horizontal run of the roof surface from the ground a in the third figure below.
Determine your roof pitch see roofpitch if you need help.