Plywood Gussets Roof Trusses

Joints are fastened with metal gussets which are steel plates that overlap the wood connections secured with spikes driven into the wood.

Plywood gussets roof trusses.

A home inspector for a homebuyer will always call out site built trusses with plywood gusset plates for evaluation by a licensed structural engineer unless stamped engineering drawings are provided by the homeowner. As well running an attic air duct system can be very difficult if the roof trusses were not designed for that application. Now go through and cut the proper amount of gussets for the amount of trusses you will need. Scissor gable pitch is 3 1 2 12.

Plywood gussets means site built trusses that have not been engineered. The primary disadvantage of roof trusses is that the attic space is not easily usable for storage or potential living space. These trusses are typically prefabricated and delivered to a job site to be erected as a unit. Roof truss design 1 24 span 2 web with plywood gussets figure 1.

Factory built trusses are designed by qualified designers. Once they are connected at the right place then place your plywood piece over the two boards and trace out an outline for the gusset to hang over and attach the boards together as in the diagram above. Having designed a truss now trying to figure out how big the plywood gussets need to be and what kind of fastening schedule is required. 10 23 2019 9 32 56 am.

Most new homes are built with trusses for roof framing. The main reason for this is that a rafter roof can be built less expensively using smaller cross section dimensional lumber components for construction. Truss factories use spiked metal gusset plates with their size shape and location specified as part of the engineering. Loads indicate the bottom chord will be in tension with a force of around 300 pounds the top chords will be in compression at around 311 pounds or so.