Peak Roof Height

The top of the ridge beam m y.

Peak roof height.

A flat roof has a slope of 2 in 12 or less. Carpenters measure roof pitch as inches of rise per 12 inches of run. Roof pitch calculator results explained. A 1 in 12 roof pitch roof rises 1 inch for every 12 inches of run.

Per asce 7 the mean roof height h is defined as the average of the roof eave height and the height to the highest point on the roof surface except that for roof angles of less than or equal to 10 the mean roof height is permitted to be taken as the roof eave height. As a reminder please don t forget to add height of rafter thickness of roofing material and ridge vent to the number that you ll get using our calculator. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. To determine the y height measure from the bird s mouth up the calculated slope x in 12 to the top of the rafter.

Use the roof pitch to find the height of a roof peak. The run always remains constant at 12 inches. Conventional slope roof range between 4 in 12 and 8 in 12. The pitch of a roof determines the height of the ridge board that runs the length of the house.

If your goal is to only calculate the roof height do not enter any numbers in wall height field and only use building width and roof pitch fields.