How Do You Find The Area Of A Roof

So if you divide your answer of a product of length times height by two you will get the area of a triangle.

How do you find the area of a roof.

Now you re ready to price out the materials. Measure the distance from the surface of the roof to the bottom of the level at the 12 inch mark. Dividing by 12 gives the ratio of inches in rise per distance. Next square your result.

The lower slope length is measured from outside wall to the start of the upper sloped roof section. That gives you 5 590 square feet which is the actual area of the surface of the roof. 8 inches and you have an 8 in 12 pitch. The answer is the number of roofing squares for the roof.

If this distance measures 4 inches you have a 4 in 12 pitch. Pitch measurement method 1. Divide your roof pitch by 12. 1 9 1.

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. Both metric and imperial measurement systems are displayed in a popup menu over the results area. The length l times the height h of a triangle is twice its area a2. This distance is the rise.

If your number is 1 3 squared would yield 1 9 after that add 1 to your number. Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118. Calculating the area true once you have your roof s pitch divide the number by 12. Take your area result and multiply it by the pitch multiplier or slope correction factor found in the table above to arrive at the roof s surface area.

For example if your roof s pitch is 4 in 12 you would divide 4 by 12. And that s the number you were looking for. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. 1 roof square 100 square feet.

Calculating an area of a triangle when estimating a roof. Convert the area to roofing squares. Calculate the square footage of a gambrel style roof using imperial measurements. The calculated area is only an estimation.

For example if your measurement is seven inches the rise is expressed as 7 12 in roofing terminology.