Hey, I was going to insulate the basement rim joists with roxul and lucky me there was a huge rain storm that flooded my basement and exposed a hole in my rim joist. I'm wondering what can be done here short of hiring someone and spending thousands of dollars? I am not all that knowledgeable about all this stuff but was going to rip out the old insulation and add roxul rock wool but this sort of sidetracks that at the moment. Could use some practical advice here. I have attached a pic, the circle thing in the hole is just a bamboo stick I was using to see where this hole was in relation to outside.
Hole in Basement Rim Joist
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Not really understanding the picture. The floor joists look to be at the very top of that picture resting on a small kneewall and the kneewall is on top of maybe the foundation.
Is that cavity with the red circle partially filled with concrete?
Can you give us a picture from outside?
Bud
Is that cavity with the red circle partially filled with concrete?
Can you give us a picture from outside?
Bud
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Really need a picture of what's going on outside in that area.
Sure looks like there's been an ongoing issue outside for many years.
That fiberglass insulation stuffed in above that area is uses less and will cause more mold issue and wood rot.
Sure looks like there's been an ongoing issue outside for many years.
That fiberglass insulation stuffed in above that area is uses less and will cause more mold issue and wood rot.
The area outside is somewhat inaccessible at the moment under a wood deck. I guess I'll have to try to pull up a board to see what is up. There is a downspout nearby, wondering if it came detached under the deck, regardless of the water infiltration I guess what I'm getting here is that this is beyond a patch job and will involve more or is it more like, we just need to see what is going on outside. I'm not entirely sure what the concrete looking stuff is below the hole, it seems to be some type of old fashioned plaster sheetrock or something, it is weird, twice as thick as normal sheetrock. The house was built in the 1940s I think.
OK, so I taped a camera to an extension rod and snapped a few photos. Seems like the problem is worse on the outside and also makes sense why it exists. For whatever reason there is only flashing on the back half of the deck for starters, and this hole/rot begins basically where the flashing ends. It also looks like a previous owner may have emptied a can of spray foam in another spot years ago when I wasn't around. What do I do here? Call a pro?
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There are times in new construction when mistakes are made. When they want o put dirt or concrete in front of the wood like you have. They put a waterproof membrane and then galvanized sheet steel from behind the siding down to and stuck to the concrete.
the outermost siding doesn’t go underground past whatever is already touching the ground, the boards behind that might go down another half foot. it is hard to say how long it has been like this because we a mud slide last fall which brought down a ton of earth from the hill above and i know a 2-3" of dirt went under the deck. what a mess.
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