Hello everyone, I bought a home recently and it came with an older aluminum framed greenhouse. I've searched google to death on what kind of plastic I need to recover one of the panels. The panels are aluminum framed with an inner and outer layer of plastic film. The plastic that is on it is not the typical 6 mil. It's more of a rigid plastic with minimal stretch. When a walnut drops from the tree it make a noise similar to a percussion drum. I'll take a picture of the greenhouse in the AM to post.