
Over the last couple of days I noticed a floor joist squeaked quite a bit when it was walked on. This wasn’t one of the usual squeaks I am accustomed to so this morning after dropping off my nine year old at school I decided to venture under the crawl space to see if I could figure out what was going on.
That particular joist was on the low clearance side of the house where one has to literally scoot along the dirt to reach. It took me about 15 minutest to get there scooting on my back. I shined the light around didn’t see anything that looked unusual and was about to leave when I decided to feel the insulation between floor joists that cover the rim joist and it was soaking wet.
I pulled the insulation off to reveal the black wet and mushy rim joist. I also found a rotted hole in the floor going all the down from the kitchen (area under the dishwasher) to the crawl space. I decided to peel the insulation off for about 15 feet down the rim joist and it was black about 12 feet down from the spot you see although it got progressively less black is it moved away from the spot where the hole is. In addition the first inch or two of 3-4 of the floor joists that tie into this rim joist are soft and full of moisture when I knocked on them with a pry bar.
Anybody have any experience with this type of repair? I suspect if the damage is confined to the area I can see the following will need to be replaced or removed:
About 15 foot of rim joist.
The floor joists can probably be reinforced.
Unfortunately there is a ceramic tile floor over the top of this problem spot and I suspect this will have to be demoed and replaced.
The kitchen Cabinets/Countertops will need to be removed.
There is a wooden deck on the other side of that rim joist so that will probably have to go too.
Finally the siding will have to be removed from the backside of the house.
I don’t think Home Depot did such a good job installing that dishwasher a couple of years ago. I’ll let the homeowners insurance duke it out with them.
I strongly suspect once the back siding is removed they will find that the water wicked all the way up the wall insulation and will reveal several studs which may need replacing and then the drywall and insulation on the other side.