Make a note of the square footage of each square or rectangular section on your diagram.
How to measure roof size from ground.
Determine your roof pitch see roofpitch if you need help.
Proceed with measuring the overhang at the fascia or.
If a section is 120 feet 37 m x 100 feet 30 m its total square footage would be 12 000 square feet 1 100 m 2.
For trapezoidal roofs measure the bottom edge the top edge also known as the ridge and the distance between the 2 edges.
Multiply the angle measurement for the pitch of the roof by the length of the roof to determine the square foot area of one side of the gable.
8 inches and you have an 8 in 12 pitch.
Go all the way around your house and fill in your outline with your measurements making sure to account for overhang.
Take the following steps to measure your roof from the ground.
Find the dimensions of each of the roof s faces.
Thus in a simple style house you ll only have to click on the corners.
Be sure to find the area of any dormers on your roof as well.
If the roof has a triangular shape stretch your tape measure along the bottom edge then measure from the peak point down to the center of the bottom edge.
Section off your roof and write your calculations down as shown below dotted lines.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
If this distance measures 4 inches you have a 4 in 12 pitch.
Outline the roof at the points that are on the same level or elevation to ensure that you re getting an accurate calculation of your roofing measurements.
Just multiply the length and width dimensions.
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.
Pitch measurement method 1 1.