Math Finding The Pitch Of A Roof

After measuring the slope estimate the roof pitch by dividing the slope by 2 if you have a simple gable roof.

Math finding the pitch of a roof.

The pitch is commonly defined as the ratio of rise over run in the form of x 12. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. Plug in the values and solve for the c term. For example if a roof has a pitch of 4 12 then for every 12 inches the building extends horizontally it rises 4 inches.

X pitch 12 0 25 12 3. If you know the angle of the roof in degrees you can find the roof pitch by converting the angle in degrees to a slope then finding the rise by multiplying the slope by 12. It can also be written down as 25 or 14. Let one side a 8.

Pitch rise run 1 5 6 25. Check you answer by plugging the value of c back into the orignial equation and solve. Recalculate this value into an angle. Calculate the roof pitch as the proportion of rise and run.

Take your pitch percent and press shift maybe 2nd function on your calculator then press tan and than equals most smartphone calculators have a scientific option in the settings. Let the slope the hypotenuse c. The rise is the height of the roof and the run is the horizontal span as pictured above. This will be a right triangle.

Let the other side b 15. The roof pitch is the slope of the rafter. Pitch tan angle use this when you express the angle of the roof pitch in degrees what is the standard pitch of a roof. However if you have a more complex roof you may need to calculate pitch section by section.

The pitch of your roof is 3 12. Tan 45o 1 00. Divide the height of your roof by the width not the full width if you ve measured the full width wall to wall divide this by 2 first h w to get your pitch as a percent. Use the pythagorean theorem to solve.