How To Figure Out The Slope Of A Roof

This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.

How to figure out the slope of a roof.

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. Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. And that s the number you were looking for.

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. Then enter the value of the run and choose the unit of measurement from the drop down menu. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118.

Calculate the roof pitch as the proportion of rise and run. Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance. Outside of the u s a degree angle is typically used. Measure the rise of your roof.

Finally enter the value of the rafter length and. The slope of your roof is the ratio of the vertical distance or rise of the roof to the horizontal distance or run. 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. The horizontal distance in the ratio will be 12 while the vertical distance is the measurement you took from the rafters.

Using an online calculator. To accurately calculate the area of your roof you must first determine its slope or pitch. If you want to know how to find the pitch of a roof then start with a calculator. Calculate the rafter length substituting these values into the following formula.

Here are the steps to follow for the roof angle calculator. Let s say it is equal to 1 5 m. 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. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

Calculate the roof slope. Pitch rise run 1 5 6 25. It is often compared to slope but is not exactly the same. And for a roof with a slope of 6 12 that number 1 118 is your roof slope multiplier.