A distinction is made between single shell and double shell roofs.
Frame roof design.
Gable roofs can be problematic in high wind and hurricane areas.
Roof framing depends on the type of roof you want to build.
Shed gable hip gambrel and mansard.
The roof frame work mainly consists of purlins inferior purlin central purlin and ridge purlin ridge collar rafter and roofing battens.
It s steep pointed roof which extends all the way to the ground or close to the ground.
A single shell roof is also called warm roof and it is an unventilated roof.
The framing square is used most frequently to find the length of the hypotenuse longest side of a right triangle when the lengths of the other two sides are known.
It s a very simple roof design and is inexpensive because the roof serves as both roof and walls.
The roof makes up much or all off the walls of the home.
The gable roof hip roof gambrel roof flat roof shed roof mansard roof and many more custom roof types.
If the frames are not properly constructed with adequate supports the roof can collapse.
Roofs are basically five types.
Their inherently simple design makes it easy to build them and cheaper than more complex designs.
There are several roof types.
The framing style of the roof refers to the actual components of each roofing truss and the design of the structural foundation of that roof.
Let s consider a basic gable wood roof framing design.
This is the basic problem involved in determining the length of a roof rafter a brace or any other member that forms the hypotenuse of an actual or imaginary right triangle.
Another common design in the northeast is the saltbox which is a gable roof with one longer side.
Here we have a wood framed gable roof.
Generally wherever 2 sloped planes connect other than at a peak point a valley is formed.
In combination of roof styles a hip will connect to another part of the roof as part of the frame.
The typical use case for a warm roof is the flat roof.
Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult.
Building strong stick frame roofs although truss designed roofs are predominant throughout most of the residential construction industry there are regions where building with stick frame roofs is still common.
Continuing on from part 3.
The a frame is very easy to identify.
High winds can also cause materials to peel away from gable roofs.
Valleys the inverse of a ridge or lines that appear to go inward on a roof.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.
