Many thanks for the advice BeezFun. I'll have to check on that. I don't want someone to get the wrong advice from my page. Fortunately, there doesn't seem to be any snow accumulation in my area, although the country requires structures to handle a 35# snow load. It's a hilly area, so it's probably a result of having map segments that cover areas that have much higher elevation.
Building a carport
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NIdaho
Bronze Member
I think you will find that the truss with the verticals was meant for the end, as the verticals are for attaching the gable siding or metal in your case.
I personally have never seen it done quite the way you did (hang a gable truss as a barge rafter/truss). in this part of the country. I would have expected to see the gable truss on top of the end wall. The barge rafters (typically a 2x6) are attached to the outriggers. The barge rafters are then covered with your fascia material/trim and the underside of the outriggers (between the gable siding and the fascia) would be covered with soffit material.
I personally have never seen it done quite the way you did (hang a gable truss as a barge rafter/truss). in this part of the country. I would have expected to see the gable truss on top of the end wall. The barge rafters (typically a 2x6) are attached to the outriggers. The barge rafters are then covered with your fascia material/trim and the underside of the outriggers (between the gable siding and the fascia) would be covered with soffit material.
Hi NIdaho, Yes, I thought I did it right, given that one has to have the verticals on the gable end to which the siding is nailed. But I think maybe what BeezFun is getting at is the need for reinforcement in the last supported truss to handle the stress from supporting a cantilevered gable end. My plans from the truss company do mention that, calling for a 1x4 reinforcement to be sistered to the top chord. I was just lazy and didn't do that. I should go back and add that after the fact. I was thinking about whether I should close in the roof structure with a soffit. Without that I suppose I run the risk that birds will nest in the truss structure. The county prohibits combustible soffits. Maybe I could just pre-prime some 1/4" gypsum and use that. What do you think?
dfkrug
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Interesting. Combustible soffits not allowed, but open soffits ARE? Where
is that? Soffits on a carport are pretty unusual, but non-combustible
soffits are a good idea (fire protection) on a house with overhanging eaves.
On my workshop building, I used galvanized sheet metal (26 guage) for
the unvented soffits....I have yet to paint them.
I know, it doesn't make sense to me either, but that's Shasta county, CA for you. Using metal for the soffits sounds like it would give a nice result, but I'd be concerned about the cost, since I have to enclose not only the soffits but the entire underside of the trusses, which would be about 600 square feet.