Gable Roof addition

Old 08-25-08, 08:24 AM
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Join Date: Aug 2008
Location: Fort Bragg, CA
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Gable Roof addition

Hello to all,

I am throwing around the idea of adding a gable addition perpendicular to the existing roof line. the additon would be to add more square footage to our living room. In doing so we would have to blow out 18 feet of the existing outer wall. we only want to extend the room out 6 more feet and as mentioned before it will be 18 feet wide. the existing construction is a single gable roof line with engineered trusses, with the proposed removed section being load bearing. the finish inside is an 8' drywall lid and i would prefer not to place an exposed beam at the location of the old wall.

this is the part that i cannot put my finger on:

how do you tie into the existing trusses and transfer the load to the new walls that will be built for the gable addition? is this even possible without having an exposed beam? a friend had mentioned that maybe i would need a girder truss?

any help would be greatly appreciated, thanks in advance!

Old 08-26-08, 05:38 AM
Join Date: Jul 2008
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Unfortunately, that's the part you really need an engineer for. From the exterior wall of your new addition, you put trusses until you meet the wall of your existing house. The load goes from this point and has to be transfered onto your existing roof or ridge pole.

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