So if you divide your answer of a product of length times height by two you will get the area of a triangle.
Measuring roof size.
If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2.
See the image below for more explanation on rise run and pitch.
Each time you add points the area will update and there is a box below that will convert this into acres meters kilometers miles and finally square feet.
L h 2 area calculating an area of a triangle when estimating a roof.
1 roof square 100 square feet.
If its pitch is 6 in 12 a pitch multiplier of 1 12 multiplying 1 152 sq ft 107 0 m 2 by 1 12 would give you an overall square footage of 1 290 square feet 120 m 2.
We ll use satellite imagery and trigonometry to calculate your roof s measurements.
Roof reports and wall reports made easy.
A 12 in 12 pitch is a steep 45 degree angle roof.
How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.
It will also give you the perimeter of the shape of the roof.
The length l times the height h of a triangle is twice its area a2.
After you ve done this you can click along the outer edge of the roof that you wish to calculate the area for.