Tim - I'd be hesitant to cut the board you marked as a seam or any
structure at all. Load standards today are not the same as when the
house was built and lumber is not as strong. I did a cantilever balcony
replacement last summer and the structural engineer I had do the plans
for me said the 2x8 joists from when my house was built in 1957 are
twice as strong as a current 2x8. I ended up having to use engineered
joists to meet my space restrictions. My point here is that I wouldn't
mess with any structure without more of an analysis by someone that can
actually examine your situation.
Have you considered bumping it down like an exposed beam? You could
make it from 1x trim to match the rest of the wood trim.
Another option is to use two 45 degree turns and then frame that
exposure as a gusset or brace. You could add another one on the other
side of the room to match.
Good luck.
Brian
On 1/19/2013 8:54 AM, Tim wrote:
> Hi all.
>
> We have a craftsman home, approx 110 years old. When HVAC was added at
> some point, all they did was use the wall stud pockets (for lack of a
> better term) as duct work. At one point an interior, non-load bearing
> wall was taken down to make one big living room. The wall contained the
> b ductingb for what is now the upstairs bathroom. When the wall was
> pulled down, they filled in the wall and ceiling gaps with planks of oak
> in an attempt to match the rest of the wood work. (an epic eye sore
> fail!!)
>
> What I want to do is use the existing feed for this bathroom from the
> basement and run 3b duct up the wall and across the ceiling where wall
> used to be and into the existing vent in the bathroom, then patch with
> either plaster or drywall (this latter most likely).
>
> The one spot that might make this a no go is pictured in the link:
>
> http://www.flickr.com/photos/82293958@N06/8394587221/in/photostream
>
> Part of the marked areas is the main support beam. However, the one
> marked is a seam so I assume not part of the main support. But above
> that is support beam. It does not look to me that I would have to remove
> much of the support beam to make room for the aluminum duct and can even
> flatten the duct to require less room. I could add layers of OSB or
> plywood to reinforce the area I cut into if necessarybfor this
> reinforcement process Ibd appreciate guidance as well.
>
> Right now we have (obviously) no air to the upstairs bathroom so
> anything I can get would be an improvement.
>
> Love this list!
> Thanks!!
> tim
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