John Sayers' Recording Studio Design Forum

The problem now is that my carpenter worries about how to glue that door with two sheets of rubber in the middle

He says that the door might bend at the top or bottom because there will be the rubber in the middle and the the two mdf sheets will not have direct contact.

.Would it be better if I tell him to glue the two mdf together and then put the rubber on one side of the door and cover it with another sheet of mdf (1cm) but not glue it, just screw it?

What do you think?

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Yiannis

No glue, just screws. The order of layers doesn't really matter.

I got interested in this, because I'm trying to make a bedroom (which is directly adjacent to a TV room, in a house with teenagers) quieter.

The sources and suppliers I found -- in the US -- are ID'd here:

viewtopic.php?f=2&t=15528

Briefly, a company called Trustile (in Colorado) makes MDF doors in 3 different thicknesses, in any dimensions ordered. A company called Zero International makes gasket hardware for doors.

Also note that there is another entire thread on doors, here on this board. Here's the link:

viewtopic.php?t=1662

I ordered solid core MDF pre-hung exterior doors at Lowes. Just a thick, simple slab. Nothing fancy. They have worked well. They came with the gaskets already on them. Exterior doors mounted inside my studio. They are part of my 64dB isolation between rooms. I may have more than that when I measure again, after adding a window.

I could also add hinges and "beef up" to a super door someday, if I wanted to. But I've been happy with the isolation, as is.

Hi guys! I have been looking for the answer of the following question, however I haven't been able after some hours of research.

Are cold room doors (filled with polyurethane, steel, sealing jambs...) good for a studio and rehearsal rooms? I have attached a couple of images. I was able to find 3.5", 2.5" and 1.5" width doors, and it will be installed on an existing wood frame.

Looking forward to read what you think. Cheers!

A cold room door is designed for a thermal environment. An acoustic door is designed for sound/vibration....the difference is the mass of the acoustic door which the thermal cold environment door has none of.


The seals are good, magnetic in nature, but the mass is not there.

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Brien Holcombe
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Sound: You can't stop it, you can only try to contain it.

Hi man, thanks for the fast answer! I think I will go for an hybrid: seals from the cold room door but instead of the polyurethane, a rigid solid solid 1 3/4 door.

Cheers!

Let's talk about sliding doors!

I know the best bet would be to get a door made that has a thick, laminated glass piece. However, for the life of me I can't seem to find any of those here in Sweden.

So, I've been looking at some normal sliding doors made for year round use on terraces, backyards, balconies etc.. They most often have like 4mm glass - 12mm air - 4mm glass. It sounds like it will not be isolating sound very well compared to a let's say.. 12mm total laminated glass. I found some information by searching, but I couldn't really find an answer to the following:

How much of a STL loss are we talking about when comparing those two types of glass types? Are we talking about completely useless or just sub-optimal?

Thanks in advance!

the 12mm (2x 6mm glass w/ laminate in-between) would be nice as would 19mm. a single 4mm air 4mm arrangement could be used in vox booth as it's probably 30db or so. here's a company in Sweden that makes acoustic doors and may be a lead on a slider door http://www.daloc.com/

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Glenn

On the topic of sliding doors,Would it be possible to use something like a super door on a sliding rail?
I do not have the funds to buy glass right now and i have mdf and gyprock in abundance.

in theory you could make a super pocket door or slider - it's all about the proper seals when closed. maybe a set of smaller swinging doors would be better though - say 600mm each would give you an 1200mm opening... and would likely be easier to build or buy the right seals and only have a minimal footprint compared to a single larger door.

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Glenn

A quick question thats probably already been answers dozens of times. But I'VE somehow managed to overlook the answer.
What is a the better solution a double door system with airlock or a single Super door. Between CR and LR.
I have two door ways opening to utility rooms one with my Heat Pump etc the other is just a cold room with a natural air vent( two 75mm PE-h pipes to the outside for air circulation).
A third is to the rest of the house.
Am I ok to the Utility rooms with a single door?
What are your recommendations.

What about a steal framed door filled with Concrete ?

Heavy it would be!

Check out this thread to see the designed door come alive.
viewtopic.php?f=2&t=5506&p=123675#p123675

If you got a seperated wall system, use a seperated door system as well. Match the door's mass to the wall's mass.
Same goes for a single partitioned wall.

A door is just a part of the wall. It's a special part, sure. But it's just part of the wall. Threat is like so.