Toronto Forma | 308m | 84s | Great Gulf | Gehry Partners

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Will they clean these steel panels like windows ?
If yes, I cannot imagine how.
If no, these panels will lose their brightness pretty soon.
They will...


At close range, the work becomes evident in the riveted stainless steel panels, regularly spaced, their grid-like pattern continuing across vertical and horizontal joints. The rivets anchor the metal sheets to sub-framing, ensuring both rigidity and dimensional control for the folded surfaces. Streaks owing to highly dusty construction conditions and rain will be removed through cleaning at the end of the installation process.
(Emphasis mine.)

...hope this helps!
 
Will they clean these steel panels like windows ?
If yes, I cannot imagine how.
If no, these panels will lose their brightness pretty soon.

I'm more curious about the sun reflecting off it.

True story: Gehry’s Disney Concert Hall in LA was cooking people in a residential building a couple of blocks away. They had to buff out the mirror finish of the stainless steel panels.
 
Looks like fender bender on a Cybertruck. I love the way this is turning out. I tend to think that highly reflective cladding is a bit of a cop out because it merely reflects other buildings and sky, blends in chameleon like. But Gehry’s treatment is stunning.
 
My biggest concern is the exposed fasteners. I was wishfully hoping we'd see the panels tack welded to the frame, but there's no way they could've done that at scale. Another solution would've been to have the panels manufactured with mounts that could be fastened from behind or something like that. The solution they've chosen is not elegant at all IMO. 8 Spruce does not have such a problem; it seems like most panels have no exposed fasteners or only along the edges; probably due to the less extreme contours in the steel. The Walt Disney Concert Hall in LA has no exposed fasteners from what I've seen.

Anyways, I hope I'm wrong, but I foresee the exposed fasteners causing serious problems with water ingress, streaks, rust spots if there is any steel framing underneath (hopefully it's all aluminum), etc.

8 Spruce for reference:
gehrynewyork8.jpg
 
My biggest concern is the exposed fasteners. I was wishfully hoping we'd see the panels tack welded to the frame, but there's no way they could've done that at scale. Another solution would've been to have the panels manufactured with mounts that could be fastened from behind or something like that. The solution they've chosen is not elegant at all IMO. 8 Spruce does not have such a problem; it seems like most panels have no exposed fasteners or only along the edges; probably due to the less extreme contours in the steel. The Walt Disney Concert Hall in LA has no exposed fasteners from what I've seen.

Anyways, I hope I'm wrong, but I foresee the exposed fasteners causing serious problems with water ingress, streaks, rust spots if there is any steel framing underneath (hopefully it's all aluminum), etc.

8 Spruce for reference:
View attachment 693177
The decision may or may have been about money, but I think the design in each of forma’s panel is more complex/intricate it doesn’t have just a subtle/ smooth single-curve element. When you’re folding/bending the steel sheet some many times there’s a higher risk of the sheet detaching from the frame and maybe that’s why they needed the fasteners. I agree it would’ve been cleaner without them. But I think l from street level or far away, for a tower of this scale the average person will barely notice. Not everyone sees buildings the way we do here. The impact will be just as striking with or without the fasteners
 
...besides, straining at the forest because of the trees seems a silly hill to climb. >.<
 
Manually welding thin sheet stainless is not as easy as other materials with clean up for a product of this calibre time consuming. Not sure about state of the art of automation these days, but I would say rivets would be a cost cutting measure. As for the rivets, as long as they are the same material as the sheet shouldn't be an issue for many decades if properly sized.
 

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