 Re: Metal lath or backerboard? Special waterproof stucco necessary?
Chris,
First off, I tend to overbuild everything, so bear that in mind. If I was asked to do your job commercially, I'd use cement board, then lath, then waterproof stucco. Lath on its own can be tricky to work with unless you have experience. It must be stretched tight to prevent bellies. You'll need more coats because it will squeeze through the mesh for the first one (which is a good thing, makes it hold), but if it's stretched over board, you won't need as many coats. Take the moisture out of the equation by using waterproof stucco, and be sure to vent the enclosure.
Jim |