Floating floor over basement concrete. (Artifact Recording)

Here's the first step in indexing this thread. I've included on page 1 now, a direct link to each individual page, to make things easier to browse. I'll also paste a copy of it here: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20, 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40, 41,42,43,44,45,47,48,49,50,51,52,53,54,55,56,57,58,59

Well after last weekends adventure of moving around 7 dump truck loads of dirt off my driveway, I'm hoping to pick up about 30 or 40 sheets of drywall tomorrow afternoon and start drywalling the walls in the tracking rooms. Ahhh...progress! Looking forward to it. :D

Here we go... Just picked up 32 sheets of 5/8" drywall. This will be a good start for the tracking rooms. It's about 1/2 of what I need. I estimated 70 some sheets to finish it out. May need a few more than that, but this will allow me to do the first layer all the way around.

Aaron: Curious; is that 'X' code sheetrock or the regular kind? it seems the regular kind is a little hard to find... K

Aaronw wrote:

Here we go... Just picked up 32 sheets of 5/8" drywall. This will be a good start for the tracking rooms. It's about 1/2 of what I need. I estimated 70 some sheets to finish it out. May need a few more than that, but this will allow me to do the first layer all the way around.

Curious; is that 'X' code sheetrock or the regular kind? it seems the regular kind is a little hard to find...

X

Curious; is that 'X' code sheetrock or the regular kind? it seems the regular kind is a little hard to find...

All 5 HD's and 2 Lowes stores that I comparison shop and sometimes kill time betweeg gigs at only carry type X. Regular sheetrock is hard to find in Central Florida too. Marc

Alright, now I'm curious. I know there are differences, but I've never been told. What's the difference between "Regular" and "Type X"? And what is considered "Regular"?

Regular sheetrock suppose to cost less, is more dense (weighs more) and provide better iso then X. Steve wrote this on my thread:

BTW, "X" code drywall is about 4 pounds lighter per 4x8 foot sheet (and usually more expensive so won't perform quite as good on low end as standard stuff - Keith SHERWOOD and I went over this sometime back, it's probably on his thread on about page 5, or 8, or 11, or... - bottom line is, ANY gypsum wallboard as thick as WE would build is AUTOMAgICALLY at LEAST 1-hour fire rated when built correctly.

If you can find the page where Steve and Keith go over this on Sharwards mammoth thread please post it. Steve was replying to a post I had with this info:

I’m going to quote the NRC document. It’s in metric and I’m not going to bother to convert it : 1 single layer of 16 mm type X gypsum board 2 single layer of 16 mm type X gypsum board 3 90 mm wood studs at 610 mm on centre 4 90 mm of glass fibre insulation in cavity 5 25 mm gap filled with air 6 90 mm wood studs at 610 mm on centre 7 90 mm of glass fibre insulation in cavity 8 single layer of 16 mm type X gypsum board 9 single layer of 16 mm type X gypsum board STC 69 LF - TL 50 Hz - 26.7 63 Hz - 31.8 80 Hz - 36.6 100 Hz - 39.5 etc...

Marc

Wow, that's a lot of drywall! Carried into the basement too, eh? [i]Ouch![/b] Did you have help with that? Are you still alive? :roll: Good luck drywalling! :) Take lots of pics, of course! 8) --Keith :mrgreen:

It's a daylight basement, so there's a door I can walk straight in. I had help with unloading it.

Does anyone know anything about this product: http://www.quietsolution.com/html/quiet ... Hgod-kd89w VS. Green Glue?

Sharward had an opinion recently: http://www.johnlsayers.com/phpBB2/viewtopic.php?t=7059&view=next

I wonder what it costs to order this much:

OK, I have a semi-concerned question here. I've been noticing for some time now, that it feels as though the control room is really floating. It's got a subtle vibration to it (that I only notice when I sit down). I hear the wood in the soffit walls occasionally rub together at joints. It's like there's a train way off in the distance (and there are trains around occasionally). There's also a highway near by (that they've been doing construction on (but it's 11pm)). In some ways the vibrations coinside with the sounds down the river in the industrial area with a rumble. It'll stop for a minute, then do it again. Hmmm...??? Any thoughts? or concerns? Maybe it's the General Jackson boat going up the river? Whatever it is, it appears to be an outside influence with vibrations coming through the ground. :( Could it be a compression issue with the floor? Too much or not enough weight? Maybe I'm in that middle ground?

I know exactly what it is... Your basement is haunted! :twisted: But seriously... Underloaded or overloaded are "definite possibilities." How did you measure the compression rate? There's a reason I didn't float... :roll: To be honest, I was totally inspired by your floor framework nearly two tears ago... But I ultimately couldn't float due to code constraints, and I'm glad I didn't, as I don't have the nagging "Goldilocks" feeling you are now: did I overload, underload, or get it just right? :? I suggest you post all your specs... It's worth regurgitating all that, for your sake and others'. Let's review all the math. Maybe you forgot to carry the five... :roll: --Keith :mrgreen:

My rough estimation as to what load the floor is going to have on it is anywhere from 8-12000 pounds. That will include the walls, soffits, speaker stands, console, outboard gear, people, etc. Steve's estimation at one point from looking at the pix and info I gave him, this floor technically (roughly) should be able to hold a 3" concrete slab on top of it, with everything else (I believe) he said. (This issue came up when I decided to add the concrete speaker stands.) At the moment, it's not doing it. Just on occasion, and it seems to coinside w/ noise I hear outside (or rumble).

Aaronw wrote:

OK, I have a semi-concerned question here. I've been noticing for some time now, that it feels as though the control room is really floating. It's got a subtle vibration to it ... I hear the wood in the soffit walls occasionally rub together at joints. ... It'll stop for a minute, then do it again. Hmmm...??? Any thoughts? or concerns?

'Who ya gonna call?'..... Considering the time of year and all, nearing All Hallowed's Eve, and your geographic location... It's definitely gotta be Elvis... The quick fix is to avoid keeping around snack foods in the studio -- as well as any Schedule II prescription meds... I've also heard that putting a wedding picture of Michael Jackson with Lisa Marie on the wall is very effective (although others have cautioned, rightfully, that it might encourage his wrath)... Seriously, I obviously don't know anything about floating issues, but I think that it's possible that you are on ledge, and ledges can extend relatively great distances and create a giant 'flanking' path -- especially for impact noise... perhaps from that construction site you speak of... Where I live, about half-mile away, there is a development site for these new upscale houses; they blast there every now and then; sometimes, you can hear the blasts and not feel them -- other times you don't hear them but feel them like someone dropped a 10 ton boulder on your basement floor. It seems to all depend on whether they are blasting on a 'ledge' that my house sits on, or some other rock cropping; even though all the blasting is about 1/2 mile away. K

Seriously? Your "rough estimation"? Seriously? A 4,000 pound spread? YIKES. :shock: Be afraid... Be very afraid, my friend. If I were you, I would stop building and get some help with those calculations and evaluate what changes (if any) you can make. To be perfectly honest, anything less leads me to think you're headed for a failure... As defined by having a floated floor that performs worse than if you hadn't floated at all. Hang in there... --Keith :mrgreen:

'Who ya gonna call?'.....

Ghostbusters of course!

The quick fix is to avoid keeping around snack foods in the studio -- as well as any Schedule II prescription meds...

Does oxycodone (percocet) fall into that category? Doah. Forgive me. After moving all that drywall, it didn't help my back any that I'm trying to heal.

've also heard that putting a wedding picture of Michael Jackson with Lisa Marie on the wall is very effective (although others have cautioned, rightfully, that it might encourage his wrath)...

Uh...not just no, but Hell NO! :lol:

As I mentioned, it appears to be vibrations coming through the ground from somewhere. After all, most of Nashville sits on solid limestone. When I drove the grounding rod in, it's about 6 1/2 to 7' down in the back yard.

I would not put untreated wood 2x4 directly on the concrete (doesn't meet code anyway). The plastic wood composite is a good idea if it's affordable. Some of them claim that they are decay resistant.. seems reasonable. I don't have to deal with moisture issues much where I live, but while online I've seen lots of ads for concrete sealants to resist moisture penetration in basements. Also, regarding deck... I'd consider 1-1/8" plywood instead of two layers of 3/4" OSB.

Huh? What's that post in reference to? BTW, the floating floor has no contact w/ the concrete. It's all sitting on 1/2" rubber. Also, finding any plywood that thick is a "custom" order item around here. I looked and looked for some time a couple years ago. Not only is it custom order, but it was about $60 a sheet.

I realize it's moot... But I think 1 1/8" plywood would be bad because it would resonate at a lower, worse frequency than two layers of 3/4" stuff. (See this recent post at StudioTips.) ...And, for the record, I have seen 1 1/8" tongue-and-groove plywood at my local Home Depot. It's not cheap! --Keith :mrgreen:

HD or Lowes here doesn't (or at least didn't) carry it when I was looking for it for the soffit walls. I contacted the lumber companies, and they would have had to custom order it. It was cheaper anyways to do 2 layers of 3/4" T&G OSB. When I did the first layer on the floor, it was glued and screwed. Second layer is just screwed.

Ooops, I just realized that Music City is Nashville (how did I confuse that with Memphis?); and of course Elvis is more a Memphis thang, than a Nashville one... is this not right? If so, maybe it's not Elvis' ghost, but perhaps Chet Atkins' (they don't make clean guitar players like THAT anymore :cry: ), or someone else of that ilk.... It's funny, around Boston area there are distinct changes in the geologic nature over relatively short areas... Here on the North Shore, is much large glacial till and eratics; lots of valleys have been carved from solid rock below by the glaciers of the last (?) iceage... apparently, this might have been the lowest point that the glaciers came during one epoch... Boston itself is not like it is here, but neither are some areas to the adjacent west, which reportedly have different strata (yet did have glaciers sitting on top at the same time as 'us')... In any case, what I'm getting at is that even though the ground around here looks like it's just dirt with some stones, if you go down a short ways, you'll realize there are massive ledges, and even bedrock -- stuff that allows impact and vibration to propagate louder for much greater distances than through the air... Seems that nashville is similar (although we don't have limestone, but rather more granite and granite-like minerology) K

Aaronw wrote:

As I mentioned, it appears to be vibrations coming through the ground from somewhere. After all, most of Nashville sits on solid limestone. When I drove the grounding rod in, it's about 6 1/2 to 7' down in the back yard.