Hi everyone, I'm new to the world of contracting working as an intern for a dry wall company. I have been trying to become familiar with the lingo since my experience has been outside the USA. Can anybody help me understand what people mean when they talk about top-down dry wall? I've heard terms such as "inspect for top-down dry wall" and "install top-down dry wall". I've tried to Google it but can't seem to find what I'm looking for. Thanks a lot!