"jamesgangnc" wrote in message
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On Apr 28, 3:01 pm, dpb wrote:
jamesgangnc wrote:
On Apr 28, 1:31 pm, dpb wrote:
wrote:
On Apr 28, 10:22 am, jamesgangnc wrote:
You have trusses that are not capable of supporting drywall and are
being used for a roof? Sounds like your overall plan was a bad one.
OMFG. Tell me you did not just say that...
The concern is the DRYWALL, not the trusses.
While agreed 4' OC is certainly not enough support for drywall, it's
quite possible the lower chord of an engineered truss that is perfectly
adequate for the roof load is not designed for the bearing weight of
drywall.

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Seems improbable though.

Why? If the truss company wasn't given the requirement of drywall
ceiling it would be fairly likely ime in these days of design for
minimal material/weight and where the truss companies have these
standard designs which are optimized and factory-built. The larger the
span and spacing, the higher the probability as the vertical load on the
lower truss/unit length goes up by the square of the spacings.

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Who would have a standard design that didn't allow for wallboard on
the ceiling? That doesn't sound like a "standard" that would get
called for much. I realize that trusses can take a load from above
that is different from a hanging load. But I'm just thinking that any
design would be able to handle the minimal load of wallboard. Of
course this is on 48" centers so that increases the load a bit. You
could probably add some vertical 2x4's to transfer the hanging load to
the top at strategic locations and make it work even if they can't
handle it.

Still, all in all sounds like a poorly thought out project based on
all the subsequent things the op has asked about doing to it.



I agree on the project not being thought out..It sounds as if he had one of
those El-Cheapo package garages thrown up with very minimal framing..Stupid
move if he planned on finishing it...Imagine what that roof is gonna look
like in a few years with 4 foot on center trusses.And the soffits..And the
walls....LOL...