Soundproofing Checklist plan, am I realistic with this?

Ok, been busy with the LA AMP Show and other fun stuff, but I finally got back to see what was going on with the demo room. The electrical is all in, the dual 2x4 stud walls with their dual 5/8" sheetrock on the outside, and 2" gap are all in as well. The 1st layer of 5/8" has gone up on the inside, mudded and taped, it's now drying. The next layer with the Green Glue goes in on Monday. The doors will go in on Tuesday (solid core 36" wide, dual doors per opening) and then get thresholds that are fit for them. Storage unit w/functioning garage door. This room will get one more layer of drywall all around w/Green Glue on the walls next to the demo room (back and right side in the photo). Office/workroom. This room gets another layer of drywall w/Green Glue on every surface. I'm going to have a "hatch" made for the window, which will swing away on hinges. It's going to have a 2x4 frame inside, with dual sheetrock layers front and back. The plan is to make it a press fit with a thin layer of material to compress (likely industrial carpet), with the sheetrock overlapping the edges about 1". Demo room, dual 2x4 walls, 4 layers of 5/8" drywall, R13 insulation, 2" air gap between the walls, plus an 11" air gap between the outer 2x4 wall, stuffed with R30 insulation (12" thick), and then there's the steel garage door. If this proves to be insufficient, I'm just going to put plywood on the outside of the garage door. At this point that wall (the weakest link) will be about 2 feet thick. Crossing my fingers on that one, although the amps will be pointed away from that wall and towards the back of the structure. My contractors seem to have some political statements about the recent legislation move for marijuana in California. :wink: Up in the top of the garage, I decided to do it all. In the rooms below, there's the two layers of 5/8" for the ceiling (2nd layer w/GG on Monday), plus R13 insulation, then 3/4" pine tongue in groove on top of the insulation. Above that is R30 insulation, and then I had 3/4" plywood run from end to end over the entire structure (30x24). My wife will love the storage. My dog is dying to climb the ladder to go up there and check it out. I had all the joists reinforced and extra bracing put in specifically for the plywood to attach to. It's pretty tight in there for walls, and when you thump on the drywall now, it doesn't reflect back a lot of sound. More pics next week. I do my 2009 taxes tomorrow so I need to see how much the IRS is leaving me to finish this project. As you can imagine, it's gone way over the original estimates due to problems with the structure that needed fixing. Between materials and labor, I'm somewhere around $14K at this point, with about 2k more in labor, materials, paint, etc.

"You will NOT be assisted on this site if you: 1. Don't fill in the Location section in your profile - this is an international site and we need to know what country you are in. 2. Put up a post saying "I have a room X feet x Y feet - what should I do?" 3. Put up a plan that has no dimensions and does not point out pertinent facts like there's a pole in the middle of the room and the right hand wall is all glass. 4. Post pictures greater than 700px wide."

Well, sorry about the 1024 pixel wide pics, I just resized them for the forum. My accountant has told me to provide details in case the IRS ever audits me again, which includes large enough pics for them to see the work involved.

John Sayers in Australia, writes the rule book around here ;)

xSpace wrote:

John Sayers in Australia, writes the rule book around here ;)

Great! I'll bring him to my next IRS audit along with my $200 per hour accountant! LOL Maybe he can explain to the IRS that an amp company can also sell speakers and cabs and not be a separate company and website! (The IRS are complete idiots I'm sorry to say, but that's probably old news.)

Just an update. I had a client over 10 days ago to try out his new 4x12 cabinet (97db speakers) with a very loud amp that puts out close to 95w. We set the amp on 8 (pretty much cranked), and played for two minutes. His wife was outside and said it sounded like someone had a TV on. I still haven't had the time to get the final wall covering done, and most of the demo room is still drywall, with a concrete floor that was about 75% covered. Since that demo took place, the double doors that had no threshold (1.5" tall gap under the door) have been sealed/fixed, with foam rubber sealing both doors on the inside of the door jambs. The electrical is finally installed, and sometime this week I'm ordering the carpet/pad, and I'm going with something economical on the walls, and ceiling...blue moving blankets 1/4" thick! I figured by the time all the cabinets were in place, along with posters, and other stuff that there won't be much to see, so I elected not to spend a bunch on wall treatments that won't be seen. I am going to put some stained/painted 1x6" pine boards over the places the moving blankets butt up to each other to give the room a different look. Right now, though, the demo room is containing the sound quite well, so it looks like I've been successful with my project for the most part. Pics when I get the room finished. I want to thank all of the members here who took an interest in replying to me on this thread, so thank you very much!

make sure the fabrics/blankets are treated to be fire retardant... looking forward to the pics

Wall coverings have to wait for another couple of weeks, but it's coming along, slowly around the rain in California. Right now I have moving blankets tacked up with drywall screws to kill the echo until the wall covering guy can get here. Some images of the latest progress.

nice bathroom! :shock:

gullfo wrote:

nice bathroom! :shock:

LOL, the plumbers are here to finish it off, then new molding/paint/fixtures, etc. These pics will be updated once it's completed. The shower rocks, though. That shower head is over 7 feet high. All new shower panels, plumbing, etc, too.

Bathroom is finished...need to clean the camera lens, charge the battery and wait for better light for the demo room pics.

Not the best pics due to the low light, but here's where I'm at so far...the back room will get finished in early April, as well as putting in black trim, and putting carpet on the window hatch. But all this came out of the demo room...32 cabinets, 8 amps, 7 guitars, and a plethora of cables/etc.

interesting curves on the ceiling...

The thin carpet I had installed could either be glued or stapled up. I had it stapled just in case it didn't work out and I wound up having to remove some, or all of it. Consequently it hangs down about an inch or a bit more.