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Russ Hinkle, AIA, CDT, LEED BD+C
Senior Member
Username: rhinkle

Post Number: 115
Registered: 02-2006

Posted on Friday, August 02, 2013 - 02:50 pm:   Edit PostDelete PostPrint Post

We specified trimless slot diffusers in a board room ceiling. The finisher mudded them in with mesh tape. And they have cracked all the way around. I can see the outline of the frame. Any suggestions?
Russ Hinkle
Dave Metzger
Senior Member
Username: davemetzger

Post Number: 465
Registered: 07-2001
Posted on Friday, August 02, 2013 - 03:44 pm:   Edit PostDelete PostPrint Post

My understanding from our USG rep is that paper tape is stronger than mesh tape. However, assuming the root cause of the cracking is vibration caused by air movement, a better solution might be to install mudded-in flush reveal trim around the diffuser perimeter, such as by Pittcon, Gordon, or Fry Reglet.

You may not want to see the reveal, but I'd rather see a sharp-edged reveal than cracks.
Sheldon Wolfe
Senior Member
Username: sheldon_wolfe

Post Number: 665
Registered: 01-2003

Posted on Friday, August 02, 2013 - 05:01 pm:   Edit PostDelete PostPrint Post

We had the same problem with trimless access doors, finally gave up and use frames. As Dave said about the reveal, a frame looks better than a crack.

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