Pitched Roof Area Formula

For example if your roof s pitch is 4 in 12 you would divide 4 by 12.

Pitched roof area formula.

1 roof square 100 square feet. Watch this short video titled area of a roof instead. The incline or pitch of a roof can be easily measured with a level tape measure and a pencil. Dividing by 12 gives the ratio of inches in rise per distance.

Roof pitch refers to the slope which the rafter creates. Fortunately you don t have to know complicated geometry to factor in the slope of your roof. To do that you need to accurately calculate the area of your roof. Measuring the roof s pitch.

Divide your roof pitch by 12. If your number is 1 3 squared would yield 1 9. To accurately calculate the area of your roof you must first determine its slope or pitch. While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12.

Once you have your roof s pitch divide the number by 12. How to calculate the roof area of a building roof width m x roof slope height m half roof area m take this example of a perfectly square house with 76m floor space a 45 pitched roof and a 2 35m roof height. L h 2 area calculating an area of a triangle when estimating a roof. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. The roof slope height is 6 98m. This would yield 1 3 next square your result. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.

Roof pitch formula image 1 12 to 12 12 roof pitch 7 12 pitch this is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations. Roof pitch is given as the number of inches in height change over the distance of one foot. The length l times the height h of a triangle is twice its area a2. Calculating the area true if you want to get the exact area measurement for your roof you can follow these steps.

You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. The roof s pitch is the number of inches the roof rises in 12 inches. You need only a level and a tape measure to find the rise of your roof.