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walkereng
walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 2370
Experience:  Over 30 years of Structural Engineering experience.
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I'm considering vaulting the ceiling in my garage. The roof

Customer Question

I'm considering vaulting the ceiling in my garage. The roof has 2x4 rafters/ ply/ and composite shingles (trusses are made with 2x6 joists and 1x6 supports every 4'). I'd like to bolt together 1 3/4" lvl material with a 3/4" ply spacer in between (the ridge board is 1X6) in order to brace this. New ceiling rafters would be 2x6 attached to the side of the beam every 16", with insulation and 5/8" sheet rock underneath. The span is 22' and room width is 18.5'. Roof pitch is 3.5' rise to 9' run. Would doubling up 14" deep lvl material be adequate? Just getting an idea for potential costs- thank you
Submitted: 12 months ago.
Category: Structural Engineering
Expert:  StructuralEng replied 12 months ago.

Hello

Expert:  StructuralEng replied 12 months ago.

I can help

Customer: replied 12 months ago.
What do you think?
Expert:  StructuralEng replied 12 months ago.

Do you have trusses or rafters and joists?

Customer: replied 12 months ago.
There is no snow here-
Customer: replied 12 months ago.
Trusses made from 2x6 and 1x6 material
Expert:  StructuralEng replied 12 months ago.

I've never seen 1x used in a truss. Is it a manufactured truss?

Customer: replied 12 months ago.
No, probably built in the 50's
Customer: replied 12 months ago.
I think they're mainly just keeping the walls from bowing
Expert:  StructuralEng replied 12 months ago.

The gram you're talking about is a ridge beam?

Customer: replied 12 months ago.
what's a gram?
Expert:  StructuralEng replied 12 months ago.

Sorry. Beam

Customer: replied 12 months ago.
I'd like to eliminate the trusses altogether without the use of collar ties or the like
Customer: replied 12 months ago.
do you have all the info. you need?
Expert:  StructuralEng replied 11 months ago.

So you want a ridge beam and rafters, correct?

Customer: replied 11 months ago.

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