Is It Okay To Use 6x2 In Roof Struts

Load tables specifying safe loads for different spans are available from metal deck manufacturers.

Is it okay to use 6x2 in roof struts. Answered 23rd feb 2011. The live loads a truss is required to bear are determined by local building codes. Purlins are placed under rafters in a perpendicular position on edge not flat. Roof decking is often also used as a diaphragm to transfer wind or seismic loads to the lateral bracing system below.

Tie to roof rafters at peak tie to ceiling joists roof rafters to ceiling joists at the eaves. 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. The minimum plywood for roofing. The typical live load placed on a structure s roof varies by the building s use and location and weather is the primary concern.

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. The decking is sized to resist the bending caused by these loads. This scheme is predicated on achieving serious load carrying connections well thought out and installed a 35 or l clips should to it at all joints.

Rafters run from the peak of the roof. The ceiling joists create a truss to begin with i m suggesting adding another member to the truss. Hi there 5x2 graded timber for rafters and ceiling joist as 6x2 is only used in loadbearing situations and would be cheaper than 6x2. The spacing between rafters in a given building is part of the engineering calculations that determine the required structure of the roof.