Recent online class student first forum post have a question about engineered roof trusses and gussets.
Plywood gussets roof trusses.
No roof loads as the roof is several feet above the top of the scissor gable.
Roof trusses pre built i ve always seen have gang nails or some sort of metal plate gusset.
There are three parts to the roof truss that you have to know.
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.
The following question examines two commonly used products.
10 23 2019 9 32 56 am.
Cut plywood gusset plates to fasten together lightweight trusses.
Nailed plywood gusset roof trusses author.
The repair gussets must be specified by an engineer and are always oversize to allow enough stiffness and nailing surface for the connection.
Looking at the topic other places online tho i see a lot of recent things in the past 2 3 years posted about using.
The course talks about plywood gussets being a non professional design.
Then there is the top chord or rafters that are angled to make the roof pitch.
Finally there are the gussets that hold the framed truss together.
The only time we see plywood gusset plates nowadays is for a repair of a manufactured truss with metal gusset plates that was damaged during installation like in the photo below.
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.
See gusset construction below.
A truss for a gable roof on one side of your home for example might need to be 15 feet 4 6 m long and 4 6 feet 1 2 1 8 m tall.
Gusset plates are used to secure the connections between the individual truss components.
Luckily cutting plywood gussets for roof trusses is simple.
When specifying the material in a repair detail the building designer or truss designer has a number of options including plywood or oriented strand board osb gussets metal nail on plates lumber scabs or repair frames.
Which is better to use for truss repairs plywood or.