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Greenhouses

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Post  gax Tue Jan 04, 2011 3:01 am

Hello everyone,
Hope your holiday season went well. I wanted to post here to get a little advice about greenhouses. I've been thinking of getting an unheated greenhouse for my trees in the winter. I Live in a pretty temperate area but it can get below freezing in Jan/Feb and does get too warm in a closed greenhouse.

Does anyone have any advice about wood frame/metal frame/polycarbonate or other material greenhouses. I think that I'd like one that automatically opens or vents based on temp and that I can add on to as time passes.

Does anyone have any advice/suggestions?

Thanks again for your help!

gax
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Post  Billy M. Rhodes Tue Jan 04, 2011 9:53 am

I have a kit greenhouse by Turner Greenhouses out of South Carolina. It can be ordered with fans and vents that are controlled by a thermostat.

Mine is 20+ years old and needs replacement, hopefully this spring/summer.
Billy M. Rhodes
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Post  Kev Bailey Tue Jan 04, 2011 10:20 am

It depends. Budget, location and size have to be considered. Aluminium frames are maintenance free but the most expensive. A self build in wood is possible if you have the skills. Horticultural glass is cheapest. Triple wall polycarbonate the most expensive.

Kev Bailey
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Post  JimLewis Tue Jan 04, 2011 1:37 pm

And I wonder if merely "below freezing" even calls for a greenhouse -- unless you have a lot of tropicals, in which case the heat shouldn't be a problem.
JimLewis
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Post  Kev Bailey Wed Jan 05, 2011 9:33 am

Gax, to answer your PM.

Greenhouses do need careful monitoring to work well. As they warm up rapidly once the sun is shining, ventilation is crucial. I added hydraulic vent openers to mine and they did a fine job, but only lasted a few years. If you get some, make sure that you obtain ones that are rated for the weight of vent they are opening.
Kev Bailey
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