JPs Studio

So here it is right from the "best wall construction for my situation" topic on the construction forum So I made my measuring and this is gonna be hard..... Average noise: 50-60db huge truck pulling breaks :evil: :( : around 90db The house is built already and the plan is to build the studio right beside it but on top of where we park our car, so making the studio the roof for the garage. This is the only place available for the studio because of pipe distribution and building regulations. The space I have is 7.5 meters by 4 meters. Studio will be used for tracking bands, I specialize in rock and metal, so I need a drum sound as big as possible so maybe pulling the live room ceiling very high? It will depend on the isolation and materials I'll have to use I guess. here are some pics explaining the situation and my basic design based on John's small studio. thanks for all your help in advance guys!!!

I am not certain what you are asking, if anything at all. Most of your questions in reference to this kind of build will be more suited to your local building planning division to find out what you can and can not do. Once that has been established you can move forward, and someone might even be able to help ;) Only thing I can say for certain is that with as much street noise as you have and as rigid as the existing structures are, this is a good example of why people shouldn't build up in the air since the flanking of the coupled buildings and the air borne noise are going to be a big task in effort to overcome.

Thanks for your answer. This is a continuation from the my topic on the construction section of the forum where I asked what kind of isolation, meaning wall building, floor and ceiling, I need to do, and if it´s possible to build this due to the current situation. But I decided to post it here on a different topic since it might imply the design of the studio . People recommend me to make some measures of the current noise so we could start from there....so here they are :D

The noise levels are of little use in your current situation since you have no structure existing to attempt to isolate. You guys build with concrete mostly is that correct? What you are suggesting would more better be asked of your local building officials to see if you >CAN< even build the thing. We can talk all day about building this wall or making that floor, but it is wasted energy if you cannot even get the building started. But, since you persist. The 50-60 is about average for most people so this usually is what it is and most typical build assemblies can combat the exterior noise. The 90 is going to be an issue. AND since you are looking at building in the air, coupled to your house AND the neighbors house, and you guys have existing rigid buildings....and no noticeable budget has been stated, you would need 12 inches (30.5CM) of exterior concrete for the floors/walls and ceiling to overcome that level of noise. And that do present a problem.

Well I talked to the architect and engineer that built our house and stated the situation, they say that a concrete structure can be built there and there is not gonna be any legal or permits problem whatsoever. This topic is mostly so I can tell them (the arquitect and engineer) what might need to be done so they can give me an estimate of how much money we`ll be talking about so I can start making my budget. 30.5cm of concrete? wow....sounds like a lot well the structure doesn´t need to be coupled to the other house right? I can leave some air gap between the houses so it would be mostly on columns, so coupled to the floor? Thanks again JP

Well, the concrete creates the coupling. Imagine if you will that the noise level you rated at 90 dB create a lot of vibration, airborne and structure borne, using the road as the structure in this instance. To mitigate the hard connections the engineer would have to build this in such a way as to resemble a typical sky scraper, e.g. hard footers/spring/column, which may or may not be code in your neck of the world. You have to decouple the structure from the offending vibration. Then the designer has to calculate and explain how much weight your build will require for the interior mass PLUS the actual structure to assign the dead/live loading required, tons will be required. And the placement on the interior footprint will be key to a successful and efficient distribution of the load in your build. The design of this will not be something that anyone can tell you here. I said that already but you refuse to understand what it is that you are asking and how impossible it is for people on a forum to explain to you how to do this. You need blueprints designed by someone in your area, engineered and with specifications applicable to your region. That plane and that simple. You tell your architect that you want a structure that can offset 90 decibel of air-borne ambient noise and all the vibrations that it brings and see what they say. They will tell you that you do not have the budget for it.

well....ok, pardon me then