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Bump out room on to covered porch.

1066 Views 3 Replies 4 Participants Last post by  Nealtw
My house has a 6' front porch with the roof trusses overhanging the entire span. I want to bump out a bedroom 4' (keeping the 2' eave overhang to be consistent with the rest of the house. The span would be 12', and would have a double w Adding the walls is easy, and the heat is a non issue as it is hot water heat. My question is could I remove the deck boards and put down plywood, then add a bottom layer of plywood and insulate the floor cavity. The goal would be to use the existing footing, etc. The total add would be under 50sf. Thoughts? The room is on the bottom rh corner of the image.


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I would not be surprised to see tri bearing trusses so a beam might be needed to replace the wall .
That type of bump out on the deck is used for gas fireplace but for a room extension you will likely have to cut the deck back and sister the joists with new cantilevered.
Not sure they will let you put the new ledger for the deck there.
You will need a engineer.
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