soundproofing - inbetween studs??

[avare]

Originally Posted by trustsound

Whats the best material to go inbetween the studs for soundproofing thats affordable and on the cheaper end.. i can get owens corning insulation but not sure how effective it is.. Is there something better in same price range?

The best for music isolation the basic `pink fluffy stuff`or other basic insulation.

Andre

[sterndrup]

Originally Posted by avare

The best for music isolation the basic `pink fluffy stuff`or other basic insulation.

Andre

is this only effective if the wall is left open, i.e., if the studs are not covered with drywall?

[avare]

Originally Posted by sterndrup

is this only effective if the wall is left open, i.e., if the studs are not covered with drywall?

Are you not putting drywall on both sides of the studs?

Andre

[sterndrup]

Sorry, if I hijacked the thread. I, not the OP asked if adding fluffy insulation between studs still provided isolation benefits when covered with drywall.

Does it?

[JLiRD808]

Originally Posted by sterndrup

Sorry, if I hijacked the thread. I, not the OP asked if adding fluffy insulation between studs still provided isolation benefits when covered with drywall.

Does it?

I would say yes...that's the benefit of fiberglass insulation for audio, it converts audio waves to heat energy.

I have a similar post here, however, my walls only need to tame the human voice spectrum (not even music) as it's for a conference room.

A lil research indicated that R-13 or R-19 would be ideal...do u agree Andre? Is "packed" R-30 ok? Lol is packed R-30 basically like R-13/19? Just wondering if it should be denser or looser....looser would be good for low-end no?

Thanks!

[Rod Gervais]

The best "bang for the buck" is fluffy insulation - do not over pack - this defeats the benefits.

[avare]

Originally Posted by Rod Gervais

The best "bang for the buck" is fluffy insulation - do not over pack - this defeats the benefits.

+1. You said it great with just the number of words required!

Not packing,
Andre

[JLiRD808]

Thanks Andre and Rod!!

[sterndrup]

does it matter if the insulation is faced or unfaced?

[JLiRD808]

Originally Posted by sterndrup

does it matter if the insulation is faced or unfaced?

Being behind the drywall, I cant imagine that it would. Faced surfaces reflect highs but the drywall would have already done that. Any freq that the fluffy absorb would go right thru the paper.

Im not one of these experts though, but from what I've learned, I think that's right lol

[mudgel]

Is the "fluffy" Insulation better than the barium impregnated vinyl (I think its call Mass Limp Vinyl MLV)? Just asking as the Op is talking about sound proofing but then he also mentions being on the "cheaper end".

[JLiRD808]

Originally Posted by mudgel

Is the "fluffy" Insulation better than the barium impregnated vinyl (I think its call Mass Limp Vinyl MLV)? Just asking as the Op is talking about sound proofing but then he also mentions being on the "cheaper end".

I've read mixed things about MLV...i think the big drawback was that it wasn't worth the expense.

Cant comment on the comparison to fluffy though.

[jabao]

Good studio building is 90% design and 10% construction.Very support...

[avare]

Originally Posted by mudgel

Is the "fluffy" Insulation better than the barium impregnated vinyl (I think its call Mass Limp Vinyl MLV)? Just asking as the Op is talking about sound proofing but then he also mentions being on the "cheaper end".

They do different things. Insulation in a double leaf cavity can increase TL by up to 10 dB or so. MLV works by adding mass. Double mass for a 6 dB improvement theoretically.

Andre

[JLiRD808]

Sorry but what is TL? And is double leaf 2 slabs of drywall on each side??

THANKS!!

[avare]

Originally Posted by JLiRD808

Sorry but what is TL? And is double leaf 2 slabs of drywall on each side??

TL is Transimission Loss. How much a sound is reduced in level by the partition. Double leaf is two contiguous layers separated by an airspace. Two layers attached to each other, like on one side is one leaf. The layers on each of the stud are leafs.

Andre

[Rod Gervais]

Originally Posted by JLiRD808

Sorry but what is TL? And is double leaf 2 slabs of drywall on each side??

Tl stands for the Transmission Loss between either side of a panel separating spaces.

So if sound with a particular frequency had an amplitude of 80dB in the source side of wall - and on the receiving side the amplitude was measured at only 50dB - the TL value of the wall for that particular frequency would be 30dB.

A leaf is each solid panel in any particular assembly - hopefully this would be either face of a 2 leaf assembly in most cases - however - it is the panels regardless of location - so you could have more than 2 leafs in any particular assembly depending on how a space is either constructed of sub-divided.

Rod