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1. Float the floor with, not the usual cement slab, but with cement pavers!
Let's say I wanted an 80 cm concrete slab, but for various reasons, it wasn't possible to get a poured slab (location, cost, access, gotta be demountable etc). You can get conrete paving blocks, 60 cm square from 20 to 50 mm thick. Same density as concrete, same pound for pound cost (or kg for kg). Difference? You don't need the cost of the labor, the truck /boom pump hire, the shut-the-street-down cost, the weekend extra 50% loading surcharge (because the building won't allow disturbance during office hours).... OK, a lot of these extras are specific to my situation and they may not be to yours, but when I solicited quotes for the 70 m2 slab the cheapest I could get was around US$25k! Not including the isolators (another $4k). With pavers, if I went for 2 staggered layers, one 30mm and one 50mm, then I can get the same mass for one fifth of the price! Provided I did the heavy lifting and laying myself of course ! .... Problem: How the heck do I keep them straight, and from moving around? And what do I do in between the gaps? They need a base obviously (like a slab would), and some "formwork" to keep them in place? Maybe fill the gaps with tile grout? Or just sand?? Won't work right? Otherwise everyone would be doing it.....or can it?......
2. OK, the next crazy idea is for the walls.
Say I wanna save space (which I do), which means that 48mm of gyprock layers x 2 = 100mm with GG. That along with the 100m air gap betwen the leaves and the room is shrinking! Now, I can't do much about the 100mm air gap, not wise to give that up, but what if I could find an alternative material to 3 layers of gyprock that was only one tenth of the width! You think I mean lead, right? Well, no, because lead is even 50% more dense than what I'm talking about, but over 4 times the cost! I'm talking about Steel ! - 2 steel plates of just 5mm each equals the mass of 100mm of gyprock! You never hear about people making steel plate walls for their studios, right? Must be expensive, No! Only 40% more than gyprock. Problem: Hmmm, maybe it "rings" where say lead wouldn't.... ok, so we can damp both sides with thin rubber which need not effect the air gap. How do we keep them in place? Hmmm, Steel studs? Caulk edges with solder? I can save almost 90mm of space. Multply that by 4 walls, that's surely gotta be worth considering....?
3. Crazy idea #3. The Folding Acoustic Wall.
No, not for the main walls, but for the isolation booths (including drum booth). You may have seen them, they can be very heavy duty, they are top rolling with no bottom track, they click into place with a mini toungue and groove fit b/n panels which can be mostly thick lam glass. They have drop seals which automatically fill all gaps to floor and ceiling upon closure. They can provide STC into the 30's with reasonable LF attenuation. They can retract into a stack, or along the outer wall. They are expensive! So why bother? Let's say because sometimes I want booths, and sometimes I want a large Live Room without booths. Bam! Moveable walls! Bonus benefit for me is I have a neighbour in the other side of the live room wall during business hours, so drums in the folding booth provides an extra wall with 2 metres gap between the folding and double wall. I'm pretty sure that's going to attenuate even the kick drum a few more dB. Why am I so sure? Because in my other 2 studios I have drum booths inside the Live Rooms, and when the booh doors were shut I noticed a considerable transmission loss accross all frequencies. They were fixed walls, but probably not much more effective than some heavy duty moveable ones....
So there's 3 crazy ideas to get you started, but I got more, don't worry, like "glueing" glass panes together to thicken my outer leaf (which for some walls is 10.38 lam floor to ceiling windows), or building walls as modular panels that can be demountable or building LF absorbers to the back wall sofa as well as iin the overhead canopy above the sofa. Diaphragmatic absorbers built into inside out walls (studs facing out covered in stretched fabric and or slats). Suspending both ceilings from the roof. Floating the walls separately, allowing me to experiment with the "demountable" concrete paver floor.... Actually, some of the last ones aren't that crazy, I think I stole them from people who are considered sane :)
So load up gents, I got my flame suit on!
Last Edited By: princeplanet May 9 17 1:38 PM. Edited 1 time