Thank you Gary, for your post! I am most concerned about the deep freezes and prolonged cold- but do you have that in Vancouver? We don't really have wet summers ( well humidity , but not a lot of rain)so I hope algae won't be too bad. I guess I should just do a test piece and put it out to see. How long would you give it - a whole year? I don't want to go ahead with a large project till I know it will work! Do you have any fresco outside? I was also very interestd in your lime putty post, as a newbie in fresco, I am trying to find the lime now to make my first batch of putty on my own-is the mixing stage necessary? I hadn't been planning to do that...hmmm.
Thanks!