soundlock treatment

[Johny]

well i am planning to build a sound lock corridor.... i just want to know how can i treat it, must be decoupling is major point?

[knightfly]

Yeah, decoupling and major absorption - this is the one place you want total absorption. 3" or 4" rigid fiberglas, carpet, tight seals on the doors, put the doors as far apart as you can, make it a black hole and you're there... Steve

[newboy_bie]

please help me with decoupling...... what it means basically?

help help help

love

[newboy_bie]

"decoupling" is it like to apart something physically?

bie

[John Sayers]

The idea of a sound lock is to isolate two rooms from each other. One door is the door frame for the 1st room - the other door is the door frame for the 2nd room. These two frames should not touch each other - i.e. they are decoupled. So the internal lining that joins the two door frames should be isolated from each door frame so they don't connect.

cheers
john

[newboy_bie]

what about this for soundlock:


feedback please

[knightfly]

The general idea looks good, but would need more info on actual wall construction, layer by layer, from inner surface to outer - also, where each door leads to... Steve

[newboy_bie]

Layer 1 : 10" brick double wall plastered bith side
Layer2 : 4" Insulation
Layer 3: 12mm Drywall on timber studs

[knightfly]

"Layer 1 : 10" brick double wall plastered bith side" -

When you say "double wall", do you mean two brick walls separated by an air space?

[newboy_bie]

yes exactly....

[knightfly]

In that case, you'd be better off just gluing more layers of panel, like sheet rock, directly to the brick. You already have one air space in the wall, adding another air space and mass layer will actually REDUCE the sound blocking... Steve

[newboy_bie]

thanks steve....

check here... how about building this?

[knightfly]

The shape and location of doors is fine, but my main point is that you need to PHYSICALLY dis-connect the framing from door-to-door between critical areas (ones that need the most isolation) - this can be done by completely isolating a wall section with either rubber, or with sound board that is heavily caulked using acoustic rated caulk.

Remember that structure-borne sound can travel farther and faster than air-borne sound. The soft material between sections of the sound lock helps block this, making the sound lock more effective... Steve

[newboy_bie]

"dis-connect the framing from door-to-door between critical areas" can you explain it more?

[knightfly]

It would be much easier for me to explain if I knew what level of building experience you have - Steve

[newboy_bie]

begginer.... dont have any experience.

[newboy_bie]

beginner

[newboy_bie]

hey steve !

no suggetions ..... share your experience..... we also want to imrpove our knowledge... it seems that you are avoiding new bies...

[knightfly]

Sorry for the delay - my job often takes me away for 2-3 days at a time, with no net access possible.

When you say you are a beginner, if that means that you have no building experience whatever then it would take more time than I have available for ALL the forums I contribute to, just to teach you the basic carpentry techniques involved in building normal, NON-sound-proof walls/doors, etc -

If this is the case, before I can help you with the specialized construction that is necessary for studios you need to learn the basic vocabulary and techniques of NORMAL building construction, so we can advance from that point. Without that, it would be like trying to drive a race car and win, when you're not yet sure how many wheels a normal car has, or what an engine does.

I'm not trying to make fun or put anybody down here - everyone in this world knows things I have no knowledge of, and vice versa. All I'm saying is that I don't have enough time available to spend it all on bringing people from "this is a hammer, this is a nail, this is a framing square, etc" - all the way to "don't do this the conventional way or you will have a flanking path" -

What I'm suggesting, is that you obtain a book that covers basic framing and house construction, so that we can talk without having to define a few hundred terms that are common knowledge among builders.

If you have access to purchase books from Amazon.com, here is one book that can help you learn terms and techniques for frame house construction - these methods can be expanded on, once you understand the basics and terminology.

http://www.amazon.com/exec/obidos/tg...glance&s=books

To partially answer your last question, ""dis-connect the framing from door-to-door between critical areas" -

What I meant by "critical areas", is any areas that sound leakage at ANY time would be un-welcome - for example, from an outside entrance into a tracking room, or from a drum room to ANYWHERE -

What I meant by "dis-connect the framing from door-to-door" was that there should be no hard, firm connection between any two doors in a sound lock. This can be accomplished by putting soft layers of building materials, such as neoprene rubber, or soft "sound board", or heavy acoustic caulking, between parts of the construction that should not be able to transmit sound to the adjacent part. This is usually best accomplished by leaving about 1/4" gap between sections that need isolation, then using sound proof but flexible sealant to fill the gaps.

This is basically what I wrote the first time - the comments AFTER the part you quoted WERE the explanation.

You REALLY need to acquire a book on basic carpentry - without that basic knowledge, I'm not sure I can explain enough before my fingers fall off from typing. If you are planning to do this construction yourself, you will be very unhappy with the results if you don't know the basic techniques before you start. And, if you're planning to explain things to someone ELSE, the results will be even MORE dis-satisfying... Steve

[newboy_bie]

ton of thanks for caring alot.... i have understand a bit and will try to grab the Wood-Frame House Construction from amazon. You are not making any fun or something as i can understand that its' really important for you to know the background of a person before explaining something.....

thanks