Pitched Roof Area Formula

They have a pitch ranging from 4 12 to 9 12.

Pitched roof area formula. 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. The incline or pitch of a roof can be easily measured with a level tape measure and a pencil. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Conventional roofs are the easiest to construct and you can walk on them safely.

The maths behind this number is that it is the square root of rise run 2 1. This would yield 1 3 next square your result. Add 1 then take the square root. You can also calculate roof pitch even without using a roof slope calculator.

Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. For example if your roof s pitch is 4 in 12 you would divide 4 by 12. The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Adding 1 gives us 1 1 9 10 9 then taking the square root gives us about 1 0541. High pitched roofs often need extra fasteners and their pitch can be as high as 21 12. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed.

Roof pitch affects the actual area of the roof. If your number is 1 3 squared would yield 1 9. So keeping with our roof pitch of 4 this gives us 1 9. Roof pitch is used to describe the slope or angle of the roof.

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. Measuring the roof s pitch. Therefore mark off 12 inches on the level and place it down horizontally against the roof rafter. The roof s pitch is the number of inches the roof rises in 12 inches.

These roofs have a pitch less than 4 12. To accurately calculate the area of your roof you must first determine its slope or pitch. Image 1 12 to 12 12 roof pitch 7 12 pitch. Watch this short video titled area of a roof instead.

Once you have your roof s pitch divide the number by 12.