Quote:
Originally Posted by J_P_A 
TMcG, thanks for the soundproofing links. Any idea on how those compare to whisper clips. I can dig through the test data on the websites, but sometimes it's a bit tough to get apples to apples comparisons.
You make a good point about dropping the ceiling down below the beam. My only concern is I have a limited ceiling height on the riser at the back. It's about 7'-10" from the riser to the ceiling without floor coverings or soffits. So I'm trying to keep as much height there as possible. With that said, though, if it gets to be too much trouble, I may do what you're suggesting.
Keep the comments coming

TMcG, thanks for the soundproofing links. Any idea on how those compare to whisper clips. I can dig through the test data on the websites, but sometimes it's a bit tough to get apples to apples comparisons.
You make a good point about dropping the ceiling down below the beam. My only concern is I have a limited ceiling height on the riser at the back. It's about 7'-10" from the riser to the ceiling without floor coverings or soffits. So I'm trying to keep as much height there as possible. With that said, though, if it gets to be too much trouble, I may do what you're suggesting.
Keep the comments coming

Sorry I didn't see this post until now. If you do any decoupling with these clips and accompanying hat track, you will already be (or be very close) to 2 inches of height down from your joists so you could simply drywall over everything without even contacting the joist. The alternative would be to do NO soundproofing except for Green Glue in between the two layers of drywall. But if there was a single surface in the home theater I would want to decouple it would be the ceiling since living space is right above. This will give you a perfectly flat ceiling which is decoupled and low profile. I assume you are talking about adding stain-grade 1x material as an applied molding directly to the ceiling to preserve maximum height, right? I don't see it pictured, but were you considering a small "back-bar" behind the last row of seats for overflow seating during big events? If you are, traffic flow to this seating area is the only thing I see as being a real height restriction for you in the room. Even if you built out the finish carpentry on the ceiling several inches to give added depth, your height to the seating on the riser will still be perfectly fine. I had a friend who's height underneath the soffit on the riser ended up being 6'7". It felt a bit strange at first but you really get used to the lower ceiling height very quickly!




























Sorry for the crappy pic, but my lens fogged up and I wasn't getting any closer.










