Agreed, Bob. Since the majority of the roof does have shade cloth I don't see the roof vents as a make-or-break issue. What would be nice would be some way to screen them so the wrens stop flying in and trying to nest in summer. They become shut in overnight when the roof vents close, then start flying around at sun up, pooping on whatever they happen to be passing over at the time and pulling down the bubble wrap.. Judy On 1/9/2021 1:07 PM, Robert Lauf via pbs wrote: > Your roof and vents look just like the setup I had on my old SB greenhouse. Personally, I doubt that putting any shade on those vents would matter much in any season. When it's hot, they will be open, and in winter so little light comes through them anyway because of the angle of the sun and the closeness of the house. > > Bob > > > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus/ _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>