Hello everyone, I have a 1933 Lord and Burn greenhouse. Over the years I've tried various solutions for insolating it in the winter including bubble insulation on the inside ceiling and 16 mill vinyl on the side glass. I've heard that some people use a product called Magni Clear Pool insulation on the ceiling. I found this site:
http://www.poolsupplies.com/Product_...6milClear.html
It looks like a promising solution. Has anyone here had any experience using this method or have any advice?