How to measure a roof from the groundin roofing sales you ll sometimes need to get quick roof measurements to help you ballpark costs on an estimate.
Measure roof shingles ground.
To measure for roofing shingles start by calculating the area of each plane or section of the roof.
Next divide your total area by 100 to calculate the number of roofing squares you ll need to buy.
Section off your roof and write your calculations down as shown below dotted lines.
To measure a roof start by measuring the length and width of the building s exterior walls and multiplying them to get the area.
Be sure to catch our funny one.
One square is 100 square feet.
So for a roof with a total square footage of 4 200 square feet you ll need 42 squares of shingle material.
Be sure to watch all our videos on our channel.
C square root a squared b squared.
Take the following steps to measure your roof from the ground.
Then calculate the pitch of the roof by placing a level against it angling the level so the bubble is centered and measuring the distance between the end of the level and the roof.
Roofing material is meted out in squares.
Determine your roof pitch see roofpitch if you need help.
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.
With these simple tricks you can measure your roof area from the ground.
Then calculate the line length of the roof c in the figure using the pythagorean theorem.
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.
To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high.
3 d animation showing you how to measure your roof.