Sloping Cold Formed Metal Rafter Connection Question
Sloping Cold Formed Metal Rafter Connection Question
(OP)
I am new to cold formed metal framing, and have been searching for a detail I would think is pretty common. The sloping, metal C joist bearing condition.
I have found some generic details describing the stacking condition, i.e. cold formed steel joist ON TOP of the primary support.
What happens if they are in the same plane and need to align flush relative to each other? I have attached a sketch to describe this.
In wood, we have sloping connectors, or we cut a birdsmouth into the rafter. How does it work with Cold Formed steel?
I have found some generic details describing the stacking condition, i.e. cold formed steel joist ON TOP of the primary support.
What happens if they are in the same plane and need to align flush relative to each other? I have attached a sketch to describe this.
In wood, we have sloping connectors, or we cut a birdsmouth into the rafter. How does it work with Cold Formed steel?






RE: Sloping Cold Formed Metal Rafter Connection Question
RE: Sloping Cold Formed Metal Rafter Connection Question
RE: Sloping Cold Formed Metal Rafter Connection Question
Then use a clip angle to fasten each and every C rafter to the angle.
However, this will induce torsion on the WF (lots of twist) and you'd want to have some means of laterally bracing the WF against the twist.
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RE: Sloping Cold Formed Metal Rafter Connection Question
DaveAtkins
RE: Sloping Cold Formed Metal Rafter Connection Question
This is the perfect situation to apply the KISS principle. The steel beam needs to be dropped so that a sloping rafter connection can be used.
Mike McCann
MMC Engineering
RE: Sloping Cold Formed Metal Rafter Connection Question