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Raising height of existing lean-to

Posted on 3/30/20 at 1:38 pm
Posted by SaDaTayMoses
Member since Oct 2005
4473 posts
Posted on 3/30/20 at 1:38 pm
I have an existing lean-to off of my shop. I need the center of the lean-to height to be at least 8' 6".
What would be the best way to do this?
I thought about un-attaching the existing lean-to from the shop, and extending it upwards (at a higher pitch) to the roof of the shop to give me 8' 6" in the middle.
My concern is how to ensure no leaks where the new sheet tin meets the existing sheet tin on the shop roof leaks in the seam?

Sorry for the crude drawing...




Edit:

New plan:
This post was edited on 3/30/20 at 3:18 pm
Posted by wickowick
Head of Island
Member since Dec 2006
46112 posts
Posted on 3/30/20 at 1:54 pm to
What type of framing material, wood or metal? How are the lean-to post attached to the ground, concrete?
Posted by cgrand
HAMMOND
Member since Oct 2009
43032 posts
Posted on 3/30/20 at 1:57 pm to
assuming your dwg is correct on current lean-to attachment, that is a low eave connection. what you drew in red is going to require you to replace both your low roof and your high roof, and will most assuredly leak

what i would do is tie in your new lean-to roof at the peak of the high roof. you could then leave your high roof intact, and just replace the ridge cap
Posted by SaDaTayMoses
Member since Oct 2005
4473 posts
Posted on 3/30/20 at 2:00 pm to
Wood framing
The only existing lean-to posts are on the short side of the lean-to and I’m 90% sure they are in concrete under dirt.
The “floor” of the lean-to is dirt.
Posted by SaDaTayMoses
Member since Oct 2005
4473 posts
Posted on 3/30/20 at 2:01 pm to
Was thinking this too. It will add a good bit of weight so would I need to support the new lean-to roof thru attic?
Posted by cgrand
HAMMOND
Member since Oct 2009
43032 posts
Posted on 3/30/20 at 2:12 pm to
i would set a new pair of columns and a beam next to your high roof eave to support the new lean-to roof at the elevation that the math tells you it should be, based on actual slope of the new lean-to roof.

as long as you are doing that, you could also replace the low-eave lean-to columns and raise up the whole assembly instead of just at the high eave
This post was edited on 3/30/20 at 2:14 pm
Posted by tenfoe
Member since Jun 2011
6915 posts
Posted on 3/30/20 at 2:33 pm to
quote:

tie in your new lean-to roof at the peak of the high roof. you could then leave your high roof intact, and just replace the ridge cap



+1
Posted by SaDaTayMoses
Member since Oct 2005
4473 posts
Posted on 3/30/20 at 2:56 pm to
like this?

Posted by keakar
Member since Jan 2017
30152 posts
Posted on 3/30/20 at 3:08 pm to
stop overthinking this, just go straight to the peak with the overhang roof and have a uniform 8ft under the overhang

you are going to work harder and have leak issues trying to avoid spending $40 more to just do a full roof to the peak
This post was edited on 3/30/20 at 3:09 pm
Posted by SaDaTayMoses
Member since Oct 2005
4473 posts
Posted on 3/30/20 at 3:16 pm to
I'm fine with going to peak. I didn't think of that at the beginning.
Thanks for the input
Posted by Aristo
Colorado
Member since Jan 2007
13292 posts
Posted on 3/30/20 at 3:52 pm to
On your 7ft column, why not use the entire 8ft of the post so you don't have a foot of drop off?
Posted by cgrand
HAMMOND
Member since Oct 2009
43032 posts
Posted on 3/30/20 at 4:11 pm to
yes like that
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