It will also give you the perimeter of the shape of the roof.
How to measure roof area from ground.
Find the length and width of the building s exterior walls.
Take the following steps to measure your roof from the ground.
Then count the number of shingles to the peak of the roof.
Determine your roof pitch see roofpitch if you need help.
Measure the horizontal run of the roof surface from the ground a in the third figure below.
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.
First use your measuring tape to measure 12 inches on your large level and make a mark at the 12 inch line.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
After you ve done this you can click along the outer edge of the roof that you wish to calculate the area for.
To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high.
To accurately calculate the area of your roof you must first determine its slope or pitch.
Next place your ladder against your house at the gable end.
Therefore mark off 12 inches on the level and place it down horizontally against the roof rafter.
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.
The pitch is the steepness of the roof.
Measuring your roof from the ground 1.
Go all the way around your house and fill in your outline with your measurements making sure to account for overhang.
Use a simple formula to approximate the square footage of triangular areas where two sections of a roof meet at each.
A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.
After that place your level against the gable trim and flat against the side of the house.
The roof s pitch is the number of inches the roof rises in 12 inches.
Make a outline of your roof on paper.
Calculate the pitch of the roof.
Climb to the top of your roof.
To find the pitch of your roof you ll first.
Research other methods for measuring a roof from the ground online or talk to a roofing contractor.