How To Find The Pitch Of A Roof Slope

Using the illustration above and information we just learned about slope and pitch we can see that a 2 12 slope can be expressed as 1 12 pitch assuming the span is twice the length of the run.

How to find the pitch of a roof slope.

Check you answer by plugging the value of c back into the orignial equation and solve. Then enter the value of the run and choose the unit of measurement from the drop down menu. 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. Rise run pitch where pitch is expressed in percent.

Let the slope the hypotenuse c. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. Let the other side b 15.

If the pitch is 1 3 the slope is 8 12. Plug in the values and solve for the c term. Finally enter the value of the rafter length and. If you want to know how to find the pitch of a roof then start with a calculator.

Here are the steps to follow for the roof angle calculator. Here are a couple examples. Let one side a 8. Rafter rise run from the pythagorean theorem.

Divide the slope by two to get the pitch. How to calculate roof pitch. Enter any pitch or fraction of pitch to find angle. First convert the pitch to a slope.

Enter any angle or fraction of angle to find pitch. To do this simply convert the rise and run as a fraction to a decimal form eg. If the slope is 4 12 the pitch for the 24 foot span is 1 6. To find the angle of a roof in degrees convert the pitch to a slope then convert to degrees by finding the arc tangent of the slope.

If you do need to calculate the pitch an estimate or shortcut is usually more practical than measuring the roof s overall dimensions. Pitch tan angle where angle is the roof pitch expressed in degrees. Total height of building. Even if you want to use a flat roof pitch calculator system you will be able to find one.

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