Not sure what to do here.

[AdRock]

In my garage I've got the frame for the outer wall sitting on the foundation. I'm re-doing the inside of the garage. I've got the insulation in and tar paper over that.

My issue is when I got to clean the floors I'll be using a power washer. I'm trying to figure out how to seal up the bottom of the wall so that the water doesn't soak the wood bolted to the concrete or wick up into the insulation paper.

What have you guys done to deal with this issue?

 

[Daniel Dudley]

I already had my walls up and painted, so I just hosed the place with a pressure washer, figuring that anything getting under the wall would eventually dry out. That was six or more months ago, so I'm sure it has. Now when I put down the baseboard I can seal it top and bottom, so tha next time tha water has nowhere to go.

In your case, I would assume that tar paper is your vapor barrier. I would be tempted to tell you to cover it with plastic sheeting as a second vapor barrier, and put some furring strips at the bottom to hold it tight to the wall. It could even be ripped pieces of plywood or luan, as you will be getting rid of it later.

Of course if you did the walls first, this would not be such an issue. If you think you can put an 8 inch rip of plywood on the botton of the tarpaper as is, go with that. As long as the plate is treated wood, it won't matter much.