Is It Okay To Use 6x2 In Roof Struts

Purlins are placed under rafters in a perpendicular position on edge not flat.

Is it okay to use 6x2 in roof struts. Tie to roof rafters at peak tie to ceiling joists roof rafters to ceiling joists at the eaves. The purlins are supported by vertical or slightly angled bracing. If the bottom chord of a roof truss functions as a floor joist such as in an attic room it carries a live load that also varies by. Hi there 5x2 graded timber for rafters and ceiling joist as 6x2 is only used in loadbearing situations and would be cheaper than 6x2.

Rafters run from the peak of the roof. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. The ceiling joists create a truss to begin with i m suggesting adding another member to the truss. The live loads a truss is required to bear are determined by local building codes.

Load tables specifying safe loads for different spans are available from metal deck manufacturers. The spacing between rafters in a given building is part of the engineering calculations that determine the required structure of the roof. The minimum plywood for roofing. Other relevant factors include the type of wood being used for the rafters the size of the rafters and the load that the rafters need to support.

The braces struts or kickers should be within every 4 and should not be at a greater than a 45 degree angle towards the roof slope lower side. No need for purlins it would be a steel beam you would need to use but that is not necessery as it is only a lean to roof. Roof decking is often also used as a diaphragm to transfer wind or seismic loads to the lateral bracing system below. The decking is sized to resist the bending caused by these loads.