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2:12 Sloping flat roof bearing 1

Frankloydwrong

Student
Mar 1, 2024
3
I had an idea for the beveled plate bearing on the home I'm building. Hopefully I can get some expert advice.

Since this is a 2:12 slope, I have not been able to find any mechanical bracket/hanger and I'm left with either a beveled plate , I feel would not be easy cut for an 8" wide plate in the field or shims, which seem like a bandaid to me. I'm not a fan of either solution.

This roof is an open web truss spanning 38' and 2' tall. There are no interior bearing walls and the exterior bearing walls are ICF construction with an 8" concrete core.

My thought was to use a 6" x 8" top plate and route sloped nesting slots in the top plate for the bottom (bearing) chord of the truss.

I would also add hurricane ties or straps.

I'm curious if anyone has done anything similar and appreciate any input or ideas
 

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You may be able to level notch the bottom chord of the truss 7/8" instead if it does not get into the gang plate.
 
I would just have the truss supplier build it into the truss. We do this regularly. Show a flat bearing seat and they'll build it into it.
I did discuss it with them and they were reluctant but really couldn't explain why. I plan on revisiting it with them, but I'd like to have a backup plan just in case.
As, I stated before, I'm not a fan of shims and the beveled plate, I can't cut in the field.
It really seems like cutting sloped nesting notches in a taller top plate has some advantages.
I would think it would help with blocking and give more truss to plate fastening options. Add some hurricane ties and i would think it would be a really solid connection.
I would love to hear an engineers take on this!
I'm far from one... but I am trying to design and build 95% of this house, I know just enough to be dangerous lol.
Seriously, I am trying to build this right and well above
Code.

I would just have the truss supplier build it into the truss. We do this regularly. Show a flat bearing seat and they'll build it into it.
 
You may be able to level notch the bottom chord of the truss 7/8" instead if it does not get into the gang plate.
Unfortunately, it's not allowed on these trusses, I am revisiting the manufacturer adding a sloped bearing as jayrod suggested, they were reluctant but I will press them on it.
Have you ever seen sloped nesting notches in a top plate before, or do you have a professional opinion on pros and cons for this approach?
 

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