New covering materials are strong and resilient. Think future expansion first. Pesticide storage building. Potting area close to grow-out area. Docks close to grow-out area.
PE is number one.
Changing a 30' X 100' house will take a crew about 6 hours - less if everything runs smoothly. 140 See light transmission characteristics of PE vs. Fiberglass vs Glass in text. Need a good seal. Check pressure between the two layers with a manometer or good eye. When put up cold, pe will sag a bit when hot.