Lp I Joist Roof Rafters

The function of each component is.

Lp i joist roof rafters.

The rafters carry the applied loads to the exterior walls. We offer longer lengths so that ceilings and floors can be designed with fewer pieces saving time on installation. Lp solidstart i joists are straighter and more uniform in strength stiffness and size than traditional lumber providing a strong sturdy floor. Not shown are the hip and valley rafters needed to tie the roof together where the rafters are framed at an angle to each other.

Conventional framing the first thing to understand is how a roof framed with wood i joists differs structurally from a traditional stick framed roof. In a rafter roof all of these components are required to provide a stable roof. The rafters carry the applied loads to the exterior walls. The function of each component is.

In a typical roof framed with dimension lumber the rafters rest on the exterior wall top plate at the lower end and bear against a ridge board at the top. Build sturdy stable floors with wider flanges. Rafters act more like the top chord of a roof truss than as a roof joist. The ridge board is non load bearing and merely provides the point of connection for the opposing rafters and is only a nominal 1 thick.