I was planning to use polycarbonate roofing sheets in a DIY solar pool heating project. Someone told me that water vapour attacks polycarbonate. Is this true?
Seems a little far fetched considering that they are used on roofs in a rainy country like the UK...
Regards
Nick
(NB: don't use the email address)
No, it's not true. However, it is relatively UV sensitive, so don't expect it to last for ever. We have a polycarb roofed conservatory, and I'm reckoning on ~20 years life (triple wall polycarb sheets).
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