Fabric ceiling question

With my seven foot ceilings, I would like to make the control room ceiling "disappear" as much as possible, both acoustically and visually. I'd like to put up 703 covered with a dark fabric, which is a technique I've seen discussed here. Is there any thread or other article or resource for exactly HOW to install a stretched fabric ceiling? I'm not Joe Contractor, but I'm handy enough as long as I can get some instruction. Any help would be appreciated. Framing started this week, and I can start to see order appearing out of the chaos!! Thanks, Jim

Jim - is your ceiling exposed floor joists or drywall? cheers john

Right now, it's joists under a subfloor. As we discussed, my plan was to put two layers of OSB up against the subfloor between the joists. I WAS going to then fill the airspace with pink fiberglass and then apply two layers of sheetrock, but if my plan is to make the ceiling disappear acoustically, then I'm not sure whether the best bet is to apply the sheetrock and then the 703, or just 703 directly to the joists. The other question I have is the actual technique for constructing a fabric ceiling. I've seen the impaling strips, and also have seen a technique similar to hanging a regular suspended acoustic tile ceiling. I'd really appreciate any wisdom from any of the experts around here.........

beautyfish -- I have a just-shy-of-7' ceiling, and I'm doing a cloth ceiling, as well. We nailed up two layers of plywood/OSB into the subfloor, then suspended "the pink stuff" on wires stapled just inside the bottom of the joists (to keep the insulation from pressing on the cloth... ). I then stapled black polyester batting (a sewing material) pulled extremely taut to the bottom the joists (king size sheets of the Poly Request stuff found here: http://www.hickoryhillquilts.com/blackpoly.htm). The poly bat is only there to keep fiberglass shed out of the studio. I then finished with black vinyl insect screen. There's no end of great things about this stuff for this purpose -- it's cheap, readily available, comes on giant rolls, is extremely uniform in appearance, and stretches nicely to pull taut to the joists. We were actually able to pull it tight to the exterior joists of the room and only felt it necessary to staple where the seems met -- so, in essence, I have a gigantic black "cloth" ceiling that has almost no staple "dimples," and should be acoustically transparent to all but the highest frequencies. I'm sure the pink stuff won't trap bass frequnecies as well as 703, but I'm hoping the sheer quantity of it that I put up there will do the trick. I'm still fully expecting to need bass traps in the corners and probably a diffusor or two on the back wall, as well. This ceiling was extremely cheap to produce (esp. since I had the insulation lying around), if labor-intensive. The result looks fantastic and will hopefully sound great (hard to tell, as my walls aren't up just yet... those are happening soon, and I'll report back!). Lazlo

Drywall is now up and the room is indeed sounding pretty great! I've only been able to test it with an acoustic guitar, hand claps, and my voice so far, so my tests aren't very sceintific! But I hear no standing waves or odd reflections whatsoever. Here's my original sketch of the floorplan for reference (measurements are a bit off in this drawing... room is larger than the numbers show): If I stand in the control room with the storage/iso room door open and clap my hands, I only hear reflections from the storage room (it has a sheetrock lid as opposed to a cloth ceiling). The control room appears to return no immediate reflections. More later (hopefully with pics)...