What has happened up on the housetop? Very much. Have you ever wondered how many layers are on the roof of a large building? Just what is up above the ceiling panels you see? Well, lots of layers of stuff. As you know (if you've been following the blogs), the first thing put on the theater after the trusses are put in place, are the acoustical decking pieces. Recall that these are corrugated and perforated. What make the decking acoustical are the strips of yellow inserts you see being laid in the grooves of the decking--these absorb the sound that will penetrate the ceiling of the theater. Other acoustical material will be hung inside the theater, but that takes us ahead of our story. After the yellow strips are laid, panels of gypsum sheathing--brown boards--are placed, also sound absorbing (lots of sound coming from inside!), then styrofoam insulation panels are placed, and finally the membrane that covers all. Whew! Let's hope it all stays up. Just kidding! Since the men walked around on the corrugated, perforated decking before these other layers were added, prospects are good.
On the front of the theater lobby which will be mostly glass, you can see the framework that will hold the facing above the glassed area. On the roof of the annex, finished now, you can see the framework for the "fence" that will hide the air conditioning unit for the gym and the annex. You can observe the same kind of hiding device on the roof of CCH and many other buildings. Most operations will be moving inside soon, and the way the workmen are bundled up, it looks like that can't come soon enough.
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