ChameleonsByVanGogh
Member
Im going to build a greenhouse in about a month ...i would like to know if there is any poly or other matierals the allow uvb threw ..it would make things easier but im creative i will make it work just wondering
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Very expensive as in $1,000.00 per 4X8 sheet!Various levels of UVA or B are transmitted through different plastics - many even have UV blocking coatings to protect the plastic from UV degradation over time. There are UV transmitting plastic sheets, but the material is very expensive. Look at greenhouse glazing suppliers - Acrylite makes a UV transmitting panel. Be aware that acrylic sheets are flammable, just FYI.
Very expensive as in $1,000.00 per 4X8 sheet!
I was looking for UVB transmitting acrylic 1/8" thick, found some in Nevada, transmits above 90%, I think it was $1,150.00 to get 1 sheet to the west coast! I checked all the film types and even though some reps said it transmits UVB when I got the specs it transmitted less than 10%! Just saying you can't trust the factory reps because they don't know! What type of twin wall polycarbonate did you find? I would be interested to investigate the UVB transmission.Sheesh. I was just looking at all the greenhouse glazing options for a client. They ended up picking a twinwall polycarb. Poly sheet is the only "cheap" option, but there are some amazing new products out there. ETFE is a newer film that has decent UV transmission, I think, but again - super expensive. As more states go the way of Colorado, prices may come down as demand goes up. Apparently, UV is very important in the premium development of certain "crops".