Hi, I love the neat techniques and the fantastic aesthetic result of Pauls polycarbonate dome. It would be great to build my own greenhouse this way. Before doing that I''d like to know more about how polycarbonate act when exposed to heat and moisture. Will the panels leak Bisphenol A into the surroundings? Does anyone have any info regarding this issue? Best regards, Lars V.
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You should be OK covering a greenhouse with polycarbonate, you would be much more likely to come into contact with Bisphenol A from canned foods or drinks containers where Bisphenol A leaks into the liquid over time. The polycarbonate glazing will have Bisphenol A in it but it is bound inside, because the polycarbonate isn't in direct contact with food that you will be eating you should have no problems. You could also glaze your dome with glass using the same technique and avoid polycarbonate all together.