The top of the segment that radius creates sets the proper height of the roof.
Gable and valley roof house.
In this sketch i ve drawn a simple radius line starting at the bottom center of the house and ending at the roof edge.
Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home.
Here is a quick summary comparing hip and gable roofing.
A front gable roof is placed at the entrance of the house.
I ve also drawn a line connecting opposite corners of the big rectangle formed by the main facade.
This design is often seen in colonial style houses.
Square for square a simple gable roof will be cheaper compared to a complex hip and valley roof design with many intersections but sometimes gable roofing can be complex as well such as adding in dormers or extra wings to the home construction.
The gable and valley roof is a very popular roof design.
The gable is the wall created from a gable roof when you close up a two planed roof triangular walls result on each end defining the gables.
As seen here a front gable became the perfect entryway to a suburban garage in the age of the private automobile.
It s also known as a cross gable roof since the home has a cross footprint.
The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off.