Same question here, but for louvre type mounted vertically and not on a roof (or does that not matter?). I bought and received this on Friday: Exaco Louvre Window/Vent for my self-made greenhouse I am working on. I was able to create a frame and make it fit. The plastic panels are very flimsy, but I think it will do the job,I'd like to have them automatically open. I was looking at this and wonder if it is my only option: Rion Automatic Louver Window Opener

bencjedi-

Can you tell us if the Exaco louvres are made from twin wall polycarb material, or something else? Their listing does not go into much detail about the construction or materials.

Thanks

Opps, sorry for the dup...

This post was edited by steve333 on Tue, Dec 3, 13 at 13:27