Roof Framing Design

With premanufactured trusses or with rafters and ceiling joists commonly called stick framing.

Roof framing design.

The pitch of the roof determines the roofing material you can use. A distinction is made between single shell and double shell roofs. Another common design in the northeast is the saltbox which is a gable roof with one longer side. The structure of the roof roof structure and roofing the roof structure is also called roof frame work and typically consists of wood.

Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult. Plywood or osb is the most common materials used for the roof sheathing. The roof frame work mainly consists of purlins inferior purlin central purlin and ridge purlin ridge collar rafter and roofing battens. Definition of structural ridge or ridge beam used in roof framing a structural ridge beam is a horizontal beam placed at the peak or ridge of a roof and is designed to carry much of the live and dead loads or weight of the roof structure by itself.

Roofs are basically five types. The gable roof hip roof gambrel roof flat roof shed roof mansard roof and many more custom roof types. Initially we will discuss the framing of gable roofs so that we can learn the basics of how to size a roof rafter beam or joist. It s steep pointed roof which extends all the way to the ground or close to the ground.

The roof makes up much or all off the walls of the home. All roof framing tables are organized by maximum snow load. Roof framing in this chapter we will introduce you to the fundamentals of roof design and construction. We will then discuss the framing square and learn how it s used to solve some basic construction problems.

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. Partially these will depend on the style of roof you ve selected but you ll also have some wiggle room depending on the design elements of the house. But before discussing roof framing we will first review some basic terms and definitions used in roof construction. Framers stick building a hip roof you can learn a great deal about roof framing by understanding the concepts of framing a gable or shed roof.

It must meet the local codes for thickness at least 3 8 which is also based on the rafter or truss spacing. Roof framing depends on the type of roof you want to build. There are two common ways of framing the roof of a house. Shed gable hip gambrel and mansard.

There are several roof types. It s a very simple roof design and is inexpensive because the roof serves as both roof and walls.