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What material would I want to use to build the walls, and ceiling of for a 4 season greenhouse around the 45N,93W (4a)?

black thumb
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    I assume 45N is a latitude. What would help is the temperature range, what you intend to grow, how large a greenhouse, access to water, what surface do you intend? earth, paving slabs, poured concrete? Without this information I think this question will be closed as "Too broad" – kevinskio Mar 22 '16 at 09:48
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    Relatively cheap, ultraviolet stabilized plastic greenhouse film. Relatively permanent, double-wall polycarbonate panels. Standard polyethylene only lasts a season so don't bother. – Fiasco Labs Mar 22 '16 at 15:41
  • I'm thinking about using natural sunlight to reduce the requirements for the amount of power needed to have the plants grow cheaper for INDUSTRIAL!!!!!!! aquaponic growing of many different types of plants year round. – black thumb Mar 22 '16 at 21:32
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    If you're investing heavily in infrastructure, you don't want to rely on natural lighting, but use grow lights instead so that you can grow all year round. – Graham Chiu Mar 23 '16 at 07:06
  • @kevinsky is right. We need most of the details he mentions. 45 degrees North latitude could mean anything from the Rocky Mountains in Montana to somewhere in Central France. Both the same latitude, but your growing conditions vary extremely. – GardenerJ Mar 23 '16 at 15:11
  • @GardenerJ added the change. – black thumb Mar 23 '16 at 16:54
  • You are not giving us the information we need to provide a good answer. See my first comment, answer those questions please – kevinskio Mar 23 '16 at 21:33
  • 45N,93W is the Saint Paul MN area, but I was trying to broaden the question for people who experience 4 real seasons (spring, summer, fall, winter), not "rainy season", and "dry season". – black thumb Mar 24 '16 at 03:55
  • I figured out you were saying "add the grow zone". – black thumb Mar 24 '16 at 04:19
  • I think this question would be fine, if the OP added a few more details. It's great that they added the growing zone, but we also need to know what they intend to grow. If it's a hot house for orchids, you'll need a more insulating material. While you could still consider it broad, because they could technically use saran wrap. I think you could reasonably narrow it down to one or two siding choices appropriate for what they're growing and their grow zone. It might also be helpful to note how much sun it's getting on a typical day. Is it full sun all day or partial shade? – Dalton Aug 04 '16 at 18:05

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