Flashing a wood-framed chimney is like flashing a dormer, except there’s no roof behind it. Without protection, water can leak into the joint and rot your walls to direct uphill water away
Roofs peel off from the edges, so it is critical to hold them tight
A retrofit solution that works great for a low-skill workforce—like volunteers
An item on the Energy Star Thermal Bypass Checklist. Item 5.1.2, to be exact ...
Just because you draw it doesn't mean they'll build it that way. Know what makes sense, what the framer can execute, and forget about designing in two-foot modules
Flashing must extend all the way from the wall to the outside. Oh yeah, and it has to be watertight and eight people have to work on it...