Roof Framing C Purlins Trusses

Trusses most likely on 8 s.

Roof framing c purlins trusses.

In steel construction purlins can have different shapes. When they are in hangers the load stress in on the purlins edge but the lateral stress allows the trusses to move independently. An added benefit are the strong lines that purlins create by running parallel to the ridge beam s. We provide angle iron steel trusses in gable lean to and header styles.

To put it simply purlins are the horizontal roof members of the roof frame. Pre welded purlin cups predrilled bolt holes and included mounting hardware for fast easy installation. They can also be made out of wood or steel. On a typical roofing frame layout they reside between the roof truss and the roof panels.

Stock sizes include gables from 20 to 40 wide and lean to styles in 12 and 20 wide. Adding purlins between heavy timber trusses is an elegant way to reduce the cost of a timber frame roof because purlins permit an increased on center distance between trusses so you purchase fewer trusses. Purlins 24 spacing mike the pole barn guru writes.