glass or polycarbonate?

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sonnycbr

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glass or polycarbonate?
« on: April 09, 2009, 19:08 »
Hi everyone,
 just finished building 12 x 8 greenhouse frame. It was my intention to use 24" x 24" glass but someone has mentioned using polycarbonate sheets. I've priced both options and they work out roughly the same. Apart from the obvious advantage of being less breakable, are there any other reasons why I should go for poly? How long does it last? What's it like in a strong wind? Any advice appreciated, I'll let you know what my final decision is.

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oldbean

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Re: glass or polycarbonate?
« Reply #1 on: April 09, 2009, 21:32 »
The glass will retain more heat as the poly is transparent to long wave infra red. You can wash glass without worry, poly gets scratched easily. Anything can be painted on glass (except hydroflouric acid), poly only tolerates mild detergent.
« Last Edit: April 09, 2009, 21:35 by oldbean »

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Rangerkris

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Re: glass or polycarbonate?
« Reply #2 on: April 10, 2009, 07:11 »
Is it in a pace where children might be able to break glass, if not go with the glass i reckon.
Thanks
Kris

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Trillium

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Re: glass or polycarbonate?
« Reply #3 on: April 10, 2009, 15:44 »
Polycarb greenhouses sell well here but I notice that the owners take them down each winter as the units can't take snow weight and would break, not that this is a problem for most UKrs. Personally I'd be more inclined to glass for all the above reasons.

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sonnycbr

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Re: glass or polycarbonate?
« Reply #4 on: April 10, 2009, 23:28 »
Many thanks for all your advice, I've decided to go for glass.
I certainly wouldnt relish the idea of taking all the poly out every winter, aside from the fact that I overwinter plants in there. I should be all finished in a few weeks and I'll post a pic of the result.
thanks again,
Sonny



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