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Group: Forum Members
Last Login: Yesterday @ 8:02:36 AM
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hi Anthony
i recently started a post about lights for fragging - after giving it some thought i think i found a spot in my garden for a GH
but it would have to be a lean too against my garage
so that really gives me 2 options - poly carbonate or glass
which would you go for? are there any big differences in there ability to let UV through?
cheers
Steve
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Group: Forum Members
Last Login: 11/17/2009 6:47:41 PM
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| About the glass. If you read Anthony's book he says that glass is not worth it since it blocks too much UV light and energy problems.. I would go with polycarb if it was me.
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Group: Forum Members
Last Login: Today @ 5:29:16 PM
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| I don't mean to thread jack but kinda related. I have heard that acrylic blocks much less light than glass. Does anyone have any hard numbers on different types of materials and how much light they block?
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Group: Moderators
Last Login: 11/19/2009 1:09:50 PM
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Actually... common plate glass (typical for glass houses) is inferior to modern plastics for light transmission. Generally, glass admits less than 90% of light while the polycarbonates/Lexan admit over 90%.
Glass is also quite inferior regarding insulation factor. Furthermore... seek twinwall poly sheeting for even better insulation factors.
I think glass is charming and would be quite fine for growing plants, but is just a poor choice for growing corals.
kindly, Anth-
.Anthony Calfo
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