It’s probably just the wall being slightly inflated but I had to adjust my layout to make one of the panels stay in place. Overall great for a permanent install.

Every time a corner screw is tightened, the plate potentially changes shape at the corner and results in the panel locks not engaging properly resulting in use if tape to hold the tile additionally. Gor sure another product which creates a modular grid layout and then secured to the roof would be more manageable..

These mounts are incredibly hard to install and made me want to completely rethink my purchase of my canvas and extensions. I bought some mounting tape instead and it was a lot better and way cheaper

I got 50 screw mounts well over a year ago, I was just smart enough to stop installing around panel 20. I can't imagine a device better engineered that will forcefully eject your canvas panels during installation and/or at random times. I've woken up in the middle of the night as a panel will fly off the ceiling having finally given up to whatever idiotic forces this mount puts on it to 'keep it in place'.

Well over 100 dry wall anchors in my ceiling, ultimately removed them and replaced with velcro strips. Waste of time, money, and sanity.

Best