Similar to a larsen truss or a modified larsen truss the depth of the i joist is ideal for providing needed depth and support for high insulation values.
Outrigger roof framing.
17 of 31 measured drawing.
I joist outrigger in our quest for robust simple and cost effective approaches to high performance building the i joist outrigger assembly provides powerful solutions.
Outrigger framing plan and details r.
H3 2 treated framing required for outriggers rafters and flying rafters if exposed to the weather.
It can be thought of as a rafter outside the attic and another one along the edge of the roof sheathing ov erhang.
Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.
Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang.
There have been many reported cases during.
Verge overhangs are the areas of a timber framed roof that are most vulnerable to wind damage so it s important to get them right.