Intersecting Roof Angles

When two perpendicular roof lines meet their ridges intersect at a right angle and their rafters slope at a right angle to each other.

Intersecting roof angles.

Roof pitch slope roof angle degree 1 12 pitch. Explore framing complexities that result when roofs of two different pitches intersect. A cross gable roof is a design that consists of two or more gable roof ridges that intersect at an angle most commonly perpendicular to one another. 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 this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.

On a related note the pitch properly the slope of a hip or valley rafter will not be the same as the pitch of the adjacent roof sections. This type of roof is often seen in buildings with a more complex layout for example homes with an attached garage. The porch joined the house at right angles to a shed roof section. Learn more about off angle roof framing.

A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. Roof pitch calculator results explained. We designed the porch with wide overhangs for shade from the hot north carolina summer sun. So where two roof sections intersect to form a 90 angle a regular hip or valley and each roof section has for example a 6 in 12 slope the hip or valley rafter at that intersection will have.

With this method. After a taking some. The intersection of the rooflines forms inside corners. While the slope of the common rafters are expressed as x in 12 the slope of the hip and valley rafter on the same roof will be x in 16 97.