Yes, I agree, and as I said with plenty of ventiliation I'm not too worried about the level of condensation in my coop, especially on the roof as up there I can't see how it will affect the birds at all. Have had no leakage problems in the nestbox, or anywhere else, so all in all, so far, I'm quite happy with it. I suppose you just have to balance the undoubted advantages of being very easy to clean and keep clear of redmite against the winter problems which seem to affect most coops to some extent. I do live down in Hampshire, so the climate is mild - usually - I don't know how much difference it would make if i was situated much further . Anyone from Scotland out there?