In article , Tim Lamb
writes
In message , Guy King
writes
The message
from Mark contains these words:

How soundproof can you make glass and how is it done? I guess it would
be extremely expensive?

Triple glazed, I would think.

Of course a vacuum between the panes would be ideal, but they'd bow
inwards and touch or break or both.

I don't know the answer but ISTR that the optimum distance between panes
is much greater for soundproofing than for heat insulation as you have
to consider the likelihood of convection increasing heat loss.

regards



The distance does matter, in radio studios for example we sometimes use
panes that are around Six to Eight inches apart as well as being angled
or sloped relative to each other, but this is to improve the reflections
within the studios.

Around 4 to 6 mm thickness glass is used......
--
Tony Sayer