I ve also drawn a line connecting opposite corners of the big rectangle formed by the main facade.
Gable and valley roof house.
Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet.
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.
As seen here a front gable became the perfect entryway to a suburban garage in the age of the private automobile.
In this sketch i ve drawn a simple radius line starting at the bottom center of the house and ending at the roof edge.
The gable and valley roof is a very popular roof design.
The top of the segment that radius creates sets the proper height of the roof.
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.
It s also known as a cross gable roof since the home has a cross footprint.
Here is a quick summary comparing hip and gable roofing.
A front gable roof is placed at the entrance of the house.
Interestingly you can mix and match roof styles when building a gable and valley roof designs for a cross footprint home.