Hi guys. I've been reading your posts and am very impressed with the knowledge here. I was wondering if someone can answer a question I have? I bought a house with a 32 X 16 foot greenhouse that needs a lot of work. It originally had glass on all sides and corrugated fiberglass attached on the roof. I have been searching for ways to get this GH in workable condition and have been looking at supply companies for glazings and bought Shane Smith's book. I would like to use 6-mil polyethylene film (inexpensive) as the covering and read that it's best to use a double layer with a fan between the two sheets for an airspace. My question is, exactly how is this done? If I attach the sheets of film, inside and outside the GH, to the existing wooden studs that held the glass, it seems the airspace would be sectioned off like window panes, each having an airspace but not one continuous airspace? I hope this makes sense, it's kinda hard to explain.
Angus- PA, Zone "4-5"
