Roof Truss Plywood Gussets Tin Roof

Recent online class student first forum post have a question about engineered roof trusses and gussets.

Roof truss plywood gussets tin roof.

No roof loads as the roof is several feet above the top of the scissor gable. 10 23 2019 9 32 56 am. Might go marine grade douglas fir or some such. It s pretty labor intensive says vogt.

The only real loads will be the weight of the truss and the weight of the gable end drywall plus a couple of feet of flat ceiling. Roof truss design 1 24 span 2 web with plywood gussets figure 1 figure 1 roof truss 24 span 2 web with plywood gussets detailed information for a 2 web roof truss with a 24 span with plywood gussets. My world view at the time was fairly narrow as i found out the largest competitors of my new employer were building roof trusses which were held together with plywood gussets which were glued onto the truss lumber with resorcinol glue. Roof trusses pre built i ve always seen have gang nails or some sort of metal plate gusset.

I would also want a decent grade of plywood for critical structural use. Nailed plywood gusset roof trusses author. Looking at the topic other places online tho i see a lot of recent things in the past 2 3 years posted about using. Resorcinol waterproof glue is a great although expensive product.

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. Further make sure you place wood glue on each of the three gussets. Place wood glue at the end of the board where they will meet. Trusses that use dimension wood 2 by 4 or 2 by 6 can also be constructed in a shop using osb or plywood cut in triangular shapes called gussets nailed onto the joint.

The course talks about plywood gussets being a non professional design. Truss factories use spiked metal gusset plates with their size shape and location specified as part of the engineering. I ve never built trusses but i ve built a few boats out of plywood. Place a gusset on each corner and screw or nail it into place.

As well running an attic air duct system can be very difficult if the roof trusses were not designed for that application. I would never consider using osb for gussets in roof trusses. 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.