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.
Gable and valley roof house.
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.
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.
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.
Here is a quick summary comparing hip and gable roofing.
The wall gable is similar to a classical pediment but more simple and functional like a basic element of laugier s primitive hut.
This design is often seen in colonial style houses.
However if the roof also contains hips and valleys it should either be shingled or roofed with metal shingles or standing seam to help prevent roof leaks.
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.
A front gable roof is placed at the entrance of the 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.
The gable and valley roof is a very popular roof design.