Substantial posts by GeorgeG, who started the thread, and by the forum’s most active contributors. 19 of 27 posts are listed.
Page 1
GeorgeG, 28 July 2011I have a conversion project where the objective is to convert a 34' x 27' building into 2 room structure with most of it being a single room rock band practice room and…
Soundman2020, 28 July 2011Hi George, and welcome! Looks like you already have all of the basics figured out, and are getting into the details! 2x4 is fine for the walls, assuming that you are…
GeorgeG, 28 July 2011Thanks so far. The ceiling will probably be 2x10 beams without anti sway attachments Lets assume that the 2 entrance doors to the studio are connected with cloth for now…
GeorgeG, 2 August 2011Those two windows are embedded in a std 8" (partially hollow) cement block wall. The cleanest route would be to remove them and insert the identical blocks. In order to…
Soundman2020, 2 August 2011Sure, you can do that if you want, but that will make it really hard to return the room to normal of you ever move out. Solid concrete plugs will work very well, due to…
xSpace, 2 August 2011""make it good enough to keep the neighbors happy"" Well, the glass isn't an issue,,,with even a little bit of concrete the low transmission loss goes away. Problem is,…
GeorgeG, 2 August 2011The glass is single pane non-laminated 3/32" thickness. It is a residential neighborhood with 3 acre lots. I am confused about the roof. The trusses have OSB sheating…
GeorgeG, 3 August 2011I have a more general way to ask my questions. Its much easier to understand the wall systems in the simple two leaf case of high mass external wall/leaf - 8" of sealed…
Soundman2020, 3 August 2011Great question! When I first started looking into this whole 2-leaf, 3-leaf MSM thing, I ran into the exact same doubts as you, and it took a while to get to the…
GeorgeG, 3 August 2011Stuart Fantastic! Thank you for taking the time. Very good tutorial. My design presently has an 8" air gap between the 2 wall leafs (of 3X 16mm drywall each). Should I…
GeorgeG, 8 August 2011A proper two leaf M-S-M system forms a low pass filter through the mechanics of mass-sealed air-mass. The resonance is lower by increasing leaf mass and/or increasing…
Soundman2020, 8 August 201112" will get you better isolation than 8", if you can afford the space. More mass on the leaves will also get you more isolation. Yeah. you can pretty much ignore the…
Soundman2020, 8 August 2011For a 2-leaf wall, the simple form of the equation is: f = 60 / √md where m=the mass per unit area of the leaves (kg/m2) d=distance between the leaves (meters) For a…
GeorgeG, 12 August 2011Trying to understand the basic formula to help calculate wall characteristics that make sense: 5/8" drywall is 105 lbs per 4' X 12' sheet = 2.2 lbs/sq ft = 10.8 kg/m2 X…
Soundman2020, 13 August 2011What instrument are you recording that you need to isolate down to 28 Hz? :shock: About the only thing I can think of off hand that goes down that low is a full pipe…
GeorgeG, 13 August 2011One problem is that I was not accounting for insulation which in this case will be 5.5" batts or half of the airspace so I will assume a constant of 52. USG technical…
Soundman2020, 13 August 2011If your nearest "problem" is 90 meters away, then that is good news! 50 dB just outside your walls, a couple of meters away, is going to be totally inaudible long before…
Page 2
GeorgeG, 21 December 2011Well the project is complete. We were asked to turn a CMU outbuilding into a "bomb proof" (bombs going off inside) practice room for this metal band in a very ritzy…
Soundman2020, 26 July 2013Not sure if you are still around, George, but I was going through old threads to find "finished" and "in progress" rooms, and I found your thread again. So I added yours…