WK28: A difficult spot.

So this week I finally had to deal with a condition that had been staring me in the face for the past couple of months. The sill plate below the garage is potential rot/water hazard and I couldn't find a detail to resolve the issue. In the end I worked out the following solution. We'll see if it works this rainy season.

Step1: Using Melroll- a liquid applied waterproofing membrane, I coated the wooden plate with three 40 ml. layers. "Rainbuster" mastic was then applied in several applications to any gaps in the surface. Finally, a layer of Subseal- a stickybacked mastic sheet, was applied over the other layers to keep the wood from having any contact with moisture.
Step 2: I had my sheet metal fabricator make this piece of "j-channel" to cap the whole assembly. The j-channel will catch any moisture that seeps down the cold joint in the concrete.

Step 3: By using a Greenstreak expansion joint, water should be diverted away from the cold joint, and down the slope of the driveway.

Stay tuned for the rest once our driveway goes in on Friday.