Sloped rafter onto circular wall/turret
Sloped rafter onto circular wall/turret
(OP)
I have this sloping rafters that intersect a circular wall (turret). I cant think of a way to frame this easily. If I create a builtup ledger made out of thin plywood to but around the wall, then it has to be 3 dimensional curve (parabolic equation probably?). I think that will be too much to ask the framer to do. Do you guys have any idea how to support the rafters intersecting this curved wall?
Never, but never question engineer's judgement






RE: Sloped rafter onto circular wall/turret
Basically real simple construction for the roof. Cutting the curved wall plates, top and bottom, should not be a challenge for a good framer.
Mike McCann
McCann Engineering
RE: Sloped rafter onto circular wall/turret
Never, but never question engineer's judgement
RE: Sloped rafter onto circular wall/turret
How about monotrusses that nail off to and intersect top and bottom to each wall stud (extend top and bottom chords 3.5 to 5.5")? Wrap metal strap around stud if needed. Block below if needed for bearing. Could space studs closer together to keep plywood to 24" max span at the outboard end of the trusses. Or could use thicker plywood and go to 48" at the outboard. Size the wall studs for the tension/comp load from the trusses. Roof plane would not be curved, but consist of many planes. The more trusses, the more planes and the closer to looking curved.
Mike McCann
McCann Engineering
RE: Sloped rafter onto circular wall/turret
Never, but never question engineer's judgement
RE: Sloped rafter onto circular wall/turret
RE: Sloped rafter onto circular wall/turret
Never, but never question engineer's judgement
RE: Sloped rafter onto circular wall/turret
Mike McCann
McCann Engineering