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I'm replacing my deck and removed the ledger and foamboard sheathing behind it, and have a question about the framing I found.
The plywood subfloor does not come out flush to the rim joist and bottom plate. It is about 1" short so the bottom plate of the wall is overhanging. In some places I can see a crack of daylight at the top of the rim joist when looking out from the basement.
Should I shim this gap with something, just for piece of mind if no other reason? I live in tornado country and worry about these things. The house is two story and 25 years old
What should I use to shim it? I have a table saw at my disposal.
Hi beckett
Heck yes! That's a great idea. I would probably stick your shim/spacer material in there with some exterior rated construction adhesive. What do you think about the rest of the house?
Should I just rip 2x4s to a tight fit and hammer it in there with some glue? Or is there a better wood to use for such a heavy weight above? I think I might chisel off the "tongue" part of the plywood so the shim snugs right in there.
I haven't seen the rest of the house, only the section where the deck was. I'd assume it is flush to with the rim/plate on the other 3 walls.
Should I just rip 2x4s to a tight fit and hammer it in there with some glue? Or is there a better wood to use for such a heavy weight above? I think I might chisel off the "tongue" part of the plywood so the shim snugs right in there.
I haven't seen the rest of the house, only the section where the deck was. I'd assume it is flush to with the rim/plate on the other 3 walls.
Not necessary Just cut the spacer and then put flat hurricane straps over that. Same straps used for holding trusses together. Should due the trick in any storm.
The only thing you will "gain" by filling that gap is personal satisfaction. You will not have any "physical/engineering gains".
But I would suggest while you have the opportunity, add tie-down straps such as these from Simpson: CS/CMST Coiled Straps
And it might be a good idea to check with the convening authority- most municipalities and counties will supersede certain parts of the IRC's codes and/or ignore others.
Last edited by K'ledgeBldr; 10-06-2010 at 07:51 AM..
I'd clean it out, do the straps as suggested, then fill with expanding foam and a temporary board, then remove the board and trim off the excess foam. That would limit bug issues and give a tiny bit better seal against any air intrusion.
Are those some kind of insect mud tubes/nests in the first picture?
They are mud dauber wasp nests. There was only foamboard sheathing covering it so it was easy for them to get in. I'm going to replace the foam sheathing with zip system OSB.
The only thing you will "gain" by filling that gap is personal satisfaction. You will not have any "physical/engineering gains".
But I would suggest while you have the opportunity, add tie-down straps such as these from Simpson: CS/CMST Coiled Straps
And it might be a good idea to check with the convening authority- most municipalities and counties will supersede certain parts of the IRC's codes and/or ignore others.
Hurricane ties is a good idea I hadn't thought of that.
The rim joist in my picture is from the lower floor. It sits on the sill plate which is on top of the concrete basement.
Would this tie be ok?
Or should I use the flat kind you guys mentioned, but attach the bottom to the sill plate, instead of the lower wall stud as in the picture?
There are no codes for decks where I live but I have designed everything according to the 2009 irc. I'm going to put 2x10 blocking between the floor joists behind the rim and attach the ledger with 5" Ledgerloks screws. A couple sections of the rim joist were replaced because it was slightly rotted so that's the reason for the blocking. Although looking back it probably wasn't necessary to replace it because it wasn't very bad. I could have just filled it with epoxy and used the blocking behind.
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