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re: Closing in attic space - rafters/joists/supports moving

Posted on 8/15/20 at 8:38 am to
Posted by GBFINC
Member since Dec 2019
43 posts
Posted on 8/15/20 at 8:38 am to
Putting a knee wall will just transfer movement and flex of roof to lower ceiling and will cause cracking in drywall
Posted by Aristo
Colorado
Member since Jan 2007
13292 posts
Posted on 8/15/20 at 9:55 am to
Those are 100% necessary.
Posted by awestruck
Member since Jan 2015
14592 posts
Posted on 8/15/20 at 10:11 am to
quote:

The pic below shows some bracing that I think is extra and completely unnecessary
Posted by mingoswamp
St. Louis
Member since Aug 2017
975 posts
Posted on 8/15/20 at 10:27 am to
Posted by awestruck
Member since Jan 2015
14592 posts
Posted on 8/15/20 at 11:04 am to
... sometimes a picture is worth a thousand words.

I truly appreciate OP's intention and creative thought, been there myself; however I'm not sure turning (pseudo)trusses into rafters is the way to go. The stresses of his current three points of contact -versus- the two would require a hard real look at the two supports. And how things like outward expansion-loading might come into play? There's more than just down forces to consider.
This post was edited on 8/15/20 at 11:32 am
Posted by mingoswamp
St. Louis
Member since Aug 2017
975 posts
Posted on 8/15/20 at 12:47 pm to
Others were correct, but Awestruck hit it out of the park with the illustration. OP needs an structural engineer to put a stamp on any changes. Builders don't waste that many 2x4s.
Posted by AUjim
America
Member since Dec 2012
3812 posts
Posted on 8/15/20 at 7:08 pm to
I legitimately appreciate all the feedback.
Definitely won't be doing anything without consulting a pro!
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