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-   -   rotted rim joist (http://www.diychatroom.com/f19/rotted-rim-joist-152690/)

powderhogg01 08-05-2012 12:49 PM

rotted rim joist
 
Hey everyone. I am new to the site, looks like a great resource for my current project. I am currently working to fix up the house I live in. I recently started to address some drainage issues in the crawlspace. While looking around I noticed that on the north side of my house(which is neatly "tucked" as close to the mountain as possible) has filled in with erosion.
I went to work digging out all the dirt, when I realized a lot of what I was removing was saw dust. I am thinking to my self this must not be termite damage I live at over 9000 feet above sea level and spend most of the year with snow on the ground. I kept clearing out dust before I found them, very small reddish brown ants. After throughly soaking the area in a termite/ant killer (which as a beekeeper with hives nearby was very hard to do) I dug the rest of the remaining dust and debris from the house. I now have the side of the house dug down to the point I can see 6 inches of foundation.
I found that there was a french drain installed at some point however there was no gravel, or anything to keep it from getting all clogged up. I replaced it with a new line, and filled the hole with gravel.
Now I am getting to business of fixing the rotted/damaged section of house, and once I get some siding removed I see that the rim joist is pretty well rotted through completely. Not only is it all rotted and bad, it is not even on the foundation, rather floating over it. the floor joist run full length to the end of the sill plate and then the home owner butted the rim joist to the ends of the floor joist.
Now everything tells me I should cut out the amount needed from the floor joist so the rim joist sits on the sill plate. is this correct thinking process or is it fine for this house in the mountains to have the rim joist just floating there.. filling a hole.. not supporting much.
I would be very appreciative with any info on this. I know its a long message, I can be long winded at times.

joecaption 08-05-2012 12:56 PM

Not sure how without some pictures were to be expected to be of much help.
There's a a reason why codes calls for pressure treated bottom plates, no sidng of any type or sheathing be any closer the 6" of the grade.

powderhogg01 08-05-2012 03:25 PM

Quote:

Originally Posted by joecaption (Post 982093)
Not sure how without some pictures were to be expected to be of much help.
There's a a reason why codes calls for pressure treated bottom plates, no sidng of any type or sheathing be any closer the 6" of the grade.

I have tried several different mean, I just cant seem to get a photo of whats going on uploaded. here is a link to a picture. you can see in the picture how the floor joist run to the end of the sill plate, the rim joist being attached to the end of the floor joist, essentially hanging there in the open air.
http://www.flickr.com/photos/8433055...in/photostream

powderhogg01 08-05-2012 05:09 PM

just did some poking around and some crawlin with spiders. it looks to me like my missing 2 inches is due to the foundation being forced inwards at the top towards the inside of the house. hmm... this changes the question now I suppose

joecaption 08-05-2012 09:12 PM

When it's light out take one more but this time back up so we can see the whole side of the house.

You sure have a mess there, but anyone that rehabs old house sees this junk all the time.

I see at least a french drain being needed so far, and gutters. That bottom plate sure does not look pressure treated to me.

Not sure why but to me it looks to me like the floor joist are sitting out to far.
That rim joist should have been sitting on top of the edge of the slab not out behond it.

powderhogg01 08-05-2012 09:55 PM

Quote:

Originally Posted by joecaption (Post 982396)
When it's light out take one more but this time back up so we can see the whole side of the house.

You sure have a mess there, but anyone that rehabs old house sees this junk all the time.

I see at least a french drain being needed so far, and gutters. That bottom plate sure does not look pressure treated to me.

Not sure why but to me it looks to me like the floor joist are sitting out to far.
That rim joist should have been sitting on top of the edge of the slab not out behond it.

the homeowner who built the house says it was built properly. when I look around the house, the rest is built properly. That had me looking around, and that northern wall of the foundation is out of plumb by 3 inches. when I go out side and measure how far it would need to be under the rim joist I find that same 3 inchs.
The bottom plate which is currently in the house is NOT pressure treated, though I do have pressure treated to replace it. I was planning on replacing the sheathing and siding, and when I had the studs exposed I was going to replace that bottom plate.
I went from replacing some sheathing, to replacing a rim joist, to needing foundation repair. How would one go about fixing a foundation wall which is leaning inwards at the top by over 2 inches? There is a section of footing running 90 degrees to the wall at the middle, there is however no 8" block for support. Over the years the mountain has gone down hill, and pushed the top of the foundation wall inward..


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