As a tip if you.
How to measure your roof from the ground.
Walk away from your house perpendicular to the wall that is under the roof pitch you d like to measure.
Measure the distance from where you re standing to the face of the wall you walked away from.
To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high.
Go all the way around your house and fill in your outline with your measurements making sure to account for overhang.
Stretch your tape measure along the walls from end to end.
Conversely you could measure the roof from the ground using a very rough approximation.
Make a outline of your roof on paper.
Use a pitch.
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.
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.
In this case you would simply measure the base footprint of your home length x width.
Calculate the pitch of the roof.
How steep it is in order to apply a slope multiplier.
How to measure a roof from the ground in roofing sales you ll sometimes need to get quick roof measurements to help you ballpark costs on an estimate.
Research other methods for measuring a roof from the ground online or talk to a roofing contractor.
Section off your roof and write your calculations down as shown below dotted lines.
Determine your roof pitch see roofpitch if you need help.
You would then consider the pitch of your roof i e.
Measure the horizontal run of the roof surface from the ground a in the third figure below.
Take the following steps to measure your roof from the ground.
Then count the number of shingles to the peak of the roof.
The pitch is the steepness of the roof.
Use a simple formula to approximate the square footage of triangular areas where two sections of a roof meet at each.
Find the length and width of the building s exterior walls.