The length l times the height h of a triangle is twice its area a2.
How to measure roof line.
The most precise way to find the roof s slope is by measuring it from the underside.
Access one of the rafters then take the measurement this way.
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.
So if you divide your answer of a product of length times height by two you will get the area of a triangle.
L 30 feet h 12 feet 30 12 2 180 square feet.
8 inches and you have an 8 in 12 pitch.
How to measure and cut siding near the roof line honey hut in this video i review the basic approach to measure and cut siding boards or panels to get the.
Locate the level s 12 inch mark.
You will need to express this size in terms of square feet.
Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
The first step in a free roofing estimate is measuring the roof dimensions.
Thus in a simple style house you ll only have to click on the corners.
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.