Step 1 understand your roof surface.
How to measure roof squares.
A home s roof is measured in squares.
So if you divide your answer of a product of length times height by two you will get the area of a triangle.
Step 4 take ground measurements.
Because each 100 square feet of roof is one.
Step 2 section the roof.
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.
Step 3 consider the roof slope.
Outside of the u s a degree angle is typically used.
8 inches and you have an 8 in 12 pitch.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
Keep lining off the different parts of your roof until each section is a square rectangle or triangle.
Each square is 100 square feet.
How to measure roof square.
If your roof is 5 000 square feet.
L h 2 area calculating an area of a triangle when estimating a roof.
If this distance measures 4 inches you have a 4 in 12 pitch.
Breaking your diagram up into smaller sections may seem unnecessarily complicated but it will actually make your final.
Pitch measurement method 2 2.
The length l times the height h of a triangle is twice its area a2.
In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.
Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.
Convert the area to roofing squares.
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.
If the house has an irregular shape measure each part separately figure the separate areas and add them together.