Roof Joist Detail

The firring strips allow the roof to have the slope required to enable water run off to the rain water outlets.

Roof joist detail.

These joists are typically used in roof structures. End bearing in hanger supported by i joist s 44kb. Depending on the roof build up a roof deck is then fixed to the joists over firring strips to provide the fall of the roof. Follow new articles new articles and comments.

Trus joist floor framing made simple. End bearing with rim board. End bearing in hanger on a top plate. Because i joists are straight and true it s easier for builders to avoid crowning and maintain a level framing surface.

End bearing in hanger supported by a beam. The roof deck material is usually chipboard or plywood. Description the use of k series joists in the framing of floors and roofs offers huge advantages when compared to wood truss and steel beam systems. Kcs joists are a version of the k series joists but designed for a constant shear and moment which allows for greater flexibility for locating extra loads such as those from rooftop units.

I joists are used extensively in residential floor and roof framing. Lh and dlh series joists are for longer span conditions and are capable of supporting larger loads. Intermediate bearing with blocking panels. They are ideal for long spans including continuous spans over intermediate supports.

End bearing with blocking panels.