Steve, i read that you found a way to make a lot of money, and maybe you´ll have less time to share with us... I´m really happy for you, i think that everyone gets what deserves...
I´ll try to make my questions more specific...
Take a look at the window design... I´m planing to put some insulation between the pads and the Closed Cell Foam between the glass and the cleats...
can i use just 6 pads of neoprene (duro 50) for a 1x0,9mts (8mm thick) window?
How it looks?
How can i replace Celotex (i can´t find it here)?
The CCF that you talk about is the same as the one in the picture? I think it´s pretty soft...
Can i wrap insulation in corner bass traps with garbage bags, and still have all the bass absorption that i need? (for my control room)
I think you said it only affect HF absortion... am i right?
I´m planning to use 2 layers of 18mm OSB for my drum raiser...
How much should i raise it from the floor? Do i have to make any calculation to prevent undesirable resonance?
Thanks man!!!
Questions before starting...
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knightfly
- Senior Member
- Posts: 6976
- Joined: Sun Mar 16, 2003 11:11 am
- Location: West Coast, USA
Pretty close, Julian - here are a couple of dwg's I did some time back, easier to re-post than try and find them -
If you can't find Celotex, look for Homosote - if no luck there, since there isn't a wide un-supported area you could use 1" thick rockwool covered with dark colored cloth - it's mainly there for looks, but needs to breathe... Steve
BTW, I doubt I'll be "going away", but it may take a little longer for answers during any "rush" video projects - how could I leave such a great group of friends???!?
If you can't find Celotex, look for Homosote - if no luck there, since there isn't a wide un-supported area you could use 1" thick rockwool covered with dark colored cloth - it's mainly there for looks, but needs to breathe... Steve
BTW, I doubt I'll be "going away", but it may take a little longer for answers during any "rush" video projects - how could I leave such a great group of friends???!?
Soooo, when a Musician dies, do they hear the white noise at the end of the tunnel??!? Hmmmm...
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Julián Fernández
- Posts: 128
- Joined: Sat Oct 09, 2004 3:23 am
- Location: Buenos Aires, Argentina
Hey steve, how about this?
can i use just 6 pads of neoprene (duro 50) for a 1x0,9mts (8mm thick) window? I can´t "read" how many pads use from your (great) layout..
The CCF that you talk about is the same as the one in the picture? I think it´s pretty soft...
Can i wrap insulation in corner bass traps with garbage bags, and still have all the bass absorption that i need? (for my control room)
I think you said it only affect HF absortion... am i right?
I´m planning to use 2 layers of 18mm OSB for my drum raiser...
How much should i raise it from the floor? Do i have to make any calculation to prevent undesirable resonance?
can i use just 6 pads of neoprene (duro 50) for a 1x0,9mts (8mm thick) window? I can´t "read" how many pads use from your (great) layout..
The CCF that you talk about is the same as the one in the picture? I think it´s pretty soft...
Can i wrap insulation in corner bass traps with garbage bags, and still have all the bass absorption that i need? (for my control room)
I think you said it only affect HF absortion... am i right?
I´m planning to use 2 layers of 18mm OSB for my drum raiser...
How much should i raise it from the floor? Do i have to make any calculation to prevent undesirable resonance?
-
Julián Fernández
- Posts: 128
- Joined: Sat Oct 09, 2004 3:23 am
- Location: Buenos Aires, Argentina
-
knightfly
- Senior Member
- Posts: 6976
- Joined: Sun Mar 16, 2003 11:11 am
- Location: West Coast, USA
can i use just 6 pads of neoprene (duro 50) for a 1x0,9mts (8mm thick) window?
What I intended for the sketch was a continuous strip, but all you really need is enough NOT to have it deform and mess up the seal; so depending on the size of the pads you have, they should probably support that much glass just fine - that pane of glass should only weigh about 22 kG.
The CCF that you talk about is the same as the one in the picture? I think it´s pretty soft...
Soft is good; you want complete conformance to any irregularities for a good air seal. If you can find a source locally for the kind of weatherstripping used in automobile trunks and doors that would be best. The type shown in your pic is often OPEN celled, which is NOT what you want.
Can i wrap insulation in corner bass traps with garbage bags, and still have all the bass absorption that i need?
Absolutely, no problem. as thin as garbage bags are, only the top octave or two would be affected.
I´m planning to use 2 layers of 18mm OSB for my drum raiser...
How much should i raise it from the floor? Do i have to make any calculation to prevent undesirable resonance?
Just damp the living crap out of it; if you have something like asphalt-based roll roofing in your area, I would put a couple layers of that between your two layers of OSB, and a snug fill of insulation UNDER the riser. The deeper your air space, the lower the resonance of the unit but regardless, DAMPING will be necessary. That's what the roll roofing will do, and also the insulation. You don't need ANOTHER "drum head" ringing, especially when it's as big as a drum riser... Steve
What I intended for the sketch was a continuous strip, but all you really need is enough NOT to have it deform and mess up the seal; so depending on the size of the pads you have, they should probably support that much glass just fine - that pane of glass should only weigh about 22 kG.
The CCF that you talk about is the same as the one in the picture? I think it´s pretty soft...
Soft is good; you want complete conformance to any irregularities for a good air seal. If you can find a source locally for the kind of weatherstripping used in automobile trunks and doors that would be best. The type shown in your pic is often OPEN celled, which is NOT what you want.
Can i wrap insulation in corner bass traps with garbage bags, and still have all the bass absorption that i need?
Absolutely, no problem. as thin as garbage bags are, only the top octave or two would be affected.
I´m planning to use 2 layers of 18mm OSB for my drum raiser...
How much should i raise it from the floor? Do i have to make any calculation to prevent undesirable resonance?
Just damp the living crap out of it; if you have something like asphalt-based roll roofing in your area, I would put a couple layers of that between your two layers of OSB, and a snug fill of insulation UNDER the riser. The deeper your air space, the lower the resonance of the unit but regardless, DAMPING will be necessary. That's what the roll roofing will do, and also the insulation. You don't need ANOTHER "drum head" ringing, especially when it's as big as a drum riser... Steve
Soooo, when a Musician dies, do they hear the white noise at the end of the tunnel??!? Hmmmm...