BMO Centre Expansion | 25m | 5s | CMLC
- Thread starter Bokimon
- Start date
Duck Lightning
Active Member
1875
Senior Member
that didnt take long
Does anyone know by any chance what that copper like material will be? Prodema? Copper coloured aluminum panels?
I've confirmed the exterior copper looking panels will be metal composite with a copper coloring. Similar to what we see on T-Mobile arena. Should look great.
haltcatchfire
Senior Member
As long as it doesn't go orange in most light like the copper coloured product used at 933 5th.
Mountain Man
Senior Member
Actual copper would oxidize, which is cool in moist climates, but turns into a dirty penny colour here. The Rocky Ridge YMCA looked amazing at first, now it looks kinda dingy.
Chinook Arch
Active Member
I always thought it was the opposite, that copper in moist climates went green. When I see buildings like the parliament buildings in Ottawa or some of the buildings in places like NYC, they are greener than green.
Atticus
Active Member
That is correct. Moisture and heat speed up the patina process. Cool and dry is where it is the slowest and hot and humid is the quickest. A copper roof in a place like Miami would turn green very quickly. Calgary is actually a pretty decent place for maintaining the copper color, and the patina can be taken off periodically to get the copper color. There's a church up in Renfrew that overlooks Bridgeland and the copper roof that has maintained its copper look for years. I believe they've rubbed off the patina a couple of times, but the oxidization has been slow.
Mountain Man
Senior Member
That's pretty much what I said. It will oxidize, but here it turns brown where in a moist climate it turns green. I'm pretty sure both are oxidization, just a slightly different chemical reaction based on water (especially salt water).
Atticus
Active Member
Yep it is exactly what you said. For some reason I also misread your post as you saying it would turn green here, but yes it would turn a dull light brown\greenish look.