What's a good way to detail an exterior corner with rigid foam?
I'm planning on improving an existing 2x4 wall by installing 2 layers of 2" polyiso or 4-1/2" nail-base panels. I've found good pointers on this site for most of the details, but am still unsure about how to handle the exterior corners so that the rain-screen strips and siding corner-boards have something solid to attach to. The corner-boards will likely only be a few inches wide, so not wide enough to catch any framing. I'm assuming a butt-corner with nail-base, so there would be OSB on only one side of the corner. How do you do this without creating a thermal bridge?
Hope that makes sense.
Posted Dec 12, 2012 2:35 PM ET
Other Questions in Green building techniques