Pitched Roof Area Formula

How to calculate the roof area of a building.

Pitched roof area formula.

Add 1 then take the square root. To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides. For example if your roof s pitch is 4 in 12 you would divide 4 by 12. Once you have your roof s pitch divide the number by 12.

To accurately calculate the area of your roof you must first determine its slope or pitch. This would yield 1 3 next square your result. The maths behind this number is that it is the square root of rise run 2 1. So keeping with our roof pitch of 4 this gives us 1 9.

Roof pitch degree table. A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof gives the actual area of the roof. Roof pitch affects the actual area of the roof. These roofs have a pitch less than 4 12.

Calculating the area true if you want to get the exact area measurement for your roof you can follow these steps. Adding 1 gives us 1 1 9 10 9 then taking the square root gives us about 1 0541. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. The roof slope height is 6 98m.

Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. The roof area for a hip end is the same as for a gable end the intersection is equivalent to a hip slightly conservative so there is usually no need to consider triangles when measuring a roof. Conventional roofs are the easiest to construct and you can walk on them safely. They have a pitch ranging from 4 12 to 9 12.

High pitched roofs often need extra fasteners and their pitch can be as high as 21 12. All formulae are below the calculator. Image 1 12 to 12 12 roof pitch 7 12 pitch. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

You can also calculate roof pitch even without using a roof slope calculator. One of users asked us to create calculator which will help him estimate hip roof parameters like rafter s lengths roof rise and roof area. It affects walkability as well as drainage and roofs in areas of high rain or snowfall tend to have steeper pitches.