In article , Mark B wrote:
On Sep 25, 11:31=A0am, dude-guy wrote:
Hi,
I desperately need an opinion from someone with a good understanding
of materials or noise reduction in general.
I live close to a church and the church bell makes extreme loud noise.
The noise is really loud, going through my windows. I want to put an
extra layer of window - obviously it should be transparent. Should
this extra layer be real "window glass" or polymeric/plastic "PMMA"?
Which transparent material reduces "church bell" sound waves the most?
I was told these guys make something that can reduce noise:http://www.alt=
uglas.com
Which frequencies do I need to reduce (freq. of sound from church
bell)?
How about optimal layer thickness of the transparent material?
Hope somebody is clever enough to help me find the best solution...
You should also make sure that the primary window is air tight. If
there are air leaks here they will let in much more noise. This
company makes a great product for sealing existing double hung
windows.
http://www.advancedrepair.com/weathe.../easy_stop.htm
M Bagdon
My 58 year old house has some really good windows which I am now replacing with
energy efficient ones. For 58 years they still seal pretty well and all the hardware works.
The outer storm window was also a plus. The hard part is ripping out the old
and putting in the new. It takes me around 4 hours work each, and does not include
final trim. I notice on the new windows, there is a resonant range when a person outside
the window is speaking and I hear a kind of hollow sound on the other side. I have 9 windows
to replace and possible bay window. I imagine the resonance changes as the temperatur changes,
and the glass bows in different amounts.
greg