I live in a neighborhood of Mediterranean-style homes. According to our homeowners association, all buildings on lots must be of this style. I have a new storage shed that I need to alter to meet these HOA standards. I plan to use WonderBoard to frame it out and stucco as the finish with paint to match the house. It will be on a concrete base against a 6' rock wall on the back side. I'm looking for suggestions as to how to attach the Wonderboard to the shed, and problems to anticipate. Thanks.