Working Out Pitched Roof Area

Find the inverse tangent of the pitch to find the angle in degrees.

Working out pitched roof area.

Watch this short video titled area of a roof instead. Divide the first part of the ratio by 12 to work out the pitch. Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. This calculator will help you estimate hip roof parameters including rafters and roof area person outline anton schedule 2011 08 29 17 53 20 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.

Marvel at your mathematical. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. They have a pitch ranging from 4 12 to 9 12.

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. The key is to be as accurate as possible since falling short or an overage could mean thousands of dollars when planning your roofing budget. Below there is a simple triangle and the math used to work out. So the total catchment area of this roof is a b c e d e 2 however if you have a pdf file drawing of the roof plan it is very easy to get the roof area.

The roof slope height is 6 98m. Measuring the roof s pitch. The incline or pitch of a roof can be easily measured with a level tape measure and a pencil. A 12 in 12 pitch is a steep 45 degree angle roof.

To convert between american roofing ratios and pitch degrees follow these steps. If you are working out how many roof tiles you need this calculation assumes there is no chimney or other section of the. High pitched roofs often need extra fasteners and their pitch can be as high as 21 12. These roofs have a pitch less than 4 12.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. You can also calculate roof pitch even without using a roof slope calculator. See the image below for more explanation on rise run and pitch. The roof s pitch is the number of inches the roof rises in 12 inches.

A 12 12 pitch roof has a pitch angle of 45. Outside of the u s a degree angle is typically used. Gable hip roofs will have the same area provided that the pitch remains the same. Therefore mark off 12 inches on the level and place it down horizontally against the roof rafter.

To figure out your roof s area a simple geometry can be used. Check your results with the omni roof pitch calculator. Roofing is measured in squares.