6 12 roof pitch 6 on 12 roof pitch 6 12 roof slope.
Valley angle 6 12 roof.
On this house the main roof slope is an 4 12 pitch and the off angle california framing is at an 6 12 pitch.
Unit run of the hip.
Draw a diagonal line between 9 feet the run of the main roof on the tongue of the square and 7 feet 6 inches the secondary roof run on the blade.
This gives the angle of the hip rafter.
The calculated results will give you the main roof hip rafter slope angle 13 26268 and the main roof hip rafter back angle 12 92097.
In a hip roof with equal pitches the unit run of a hip or valley rafter is 17 inches for every 12 inches of run in the main roof.
6 12 roof pitch equivalents roof rises 6 in a length of 12.
Determining the slope and skew angles related to hip and valley beams can be a challenge made even more difficult when the roof slopes on each side if the hip or valley are different.
On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length.
First enter 4 12 for both the main and adjacent roof pitches with an eave angle of 90.
This slope and skew calculator makes it easy by performing all of the necessary trigonometry for each hanger condition in the roof.
For example in an equal hip roof with an 8 12 pitch the pitch of the hip rafter would be 8 17.