Tji joists revolutionized the way you build floors trus joist developed wooden i joists nearly 40 years ago and since then we ve continually improved their quality and made them easier to work with.
Tji roof rafters.
One more important detail.
The tji rafter run is 18 feet.
Engineered to provide strength and consistency ilevel trus joist tji joists are a key part of our silent floor system.
Technical bulletin tb 805 shows a detail for reinforcement of tji joists slope cut to match a rafter pitch.
The applicability of this detail is based on the joist reaction at the support.
In a typical roof framed with dimension lumber the rafters rest on the exterior wall top plate at the lower end and bear against a ridge board at the top.
Conventional framing the first thing to understand is how a roof framed with wood i joists differs structurally from a traditional stick framed roof.
The second floor flat ceiling will tie into the tji at 12 feet hence the need for a vented assembly.