Roof Detail 1

[MCORTEZ]

HI, I am hoping someone can help draw a structural roof detail showing a roof to roof transition per roof plan below. I am not sure how to draw the framing cross section detail of the two roofs joining together since there is a change in roof plane. The detail callout with the red rectangle is where I want to show the roof transition detail. I've drawn an elevation detail, but don't think it will be enough for. any help or feedback is appreciated. Thank you!

 

[jayrod12]

Usually I would make the longer (and therefore taller) truss have vertical webs at 24" on-centre and then fasten the first short truss directly to the tall truss. Butt the roof plywood right up to the verts, and then put wall sheathing on the face of the exposed taller truss.

 

[BAretired]

I don't really see the problem. See below.

BA

 

[JoshPlumSE]

BA Retired shows pretty much what I was thinking.

 

[MCORTEZ]

Jayrod, I agree with your thought and would do the same if this was a roof truss design. In this case, its all 2x12 rafters with vaulted ceilings. Thanks

 

[MCORTEZ]

BA Retired, I'm thinking of doubling up the rafter where the two roofs meet. I've drawn an elevation detail - what do you guys think? I would like to show a cross detail of it, but not sure how to draw it w/out it being too confusing. The last thing is having the plan checker request it. Any help sketching it out would be appreciated.

 

[BAretired]

You don't need hangers on the left. Simply nail through the first long rafter into the low ridge beam. I would not show a detail at all as I suspect the framers could figure it out. Edit: They might nail the abutting long and short rafters together as well, not because it is structurally necessary, but it just ties the structure together a bit better.

BA