How To Figure Out The Slope Of A Roof

First enter the value of the rise and choose the unit of measurement from the drop down menu.

How to figure out the slope of a roof.

Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run. Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118. Even if you want to use a flat roof pitch calculator system you will be able to find one. The slope of your roof is the ratio of the vertical distance or rise of the roof to the horizontal distance or run.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Measure the rise of your roof. To accurately calculate the area of your roof you must first determine its slope or pitch. Let s say it is equal to 1 5 m.

For example if your tape measure found a 6 inch vertical distance to the 12 inch mark on your level the slope is 6 12 or 6 in 12. Calculate the roof slope. This will allow your project to carry the depth and detail in the roof that you wanted as well as make sure that it will maintain a sturdy and effective nature throughout. Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. And that s the number you were looking for. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Calculate the rafter length substituting these values into the following formula.

Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. Finally enter the value of the rafter length and. It is often compared to slope but is not exactly the same. Pitch rise run 1 5 6 25.

Using an online calculator. The horizontal distance in the ratio will be 12 while the vertical distance is the measurement you took from the rafters. That gives you 5 590 square feet which is the actual area of the surface of the roof. Then enter the value of the run and choose the unit of measurement from the drop down menu.

Calculate the roof pitch as the proportion of rise and run. And for a roof with a slope of 6 12 that number 1 118 is your roof slope multiplier. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. If you want to know how to find the pitch of a roof then start with a calculator.