Where noise is a really serious nuisance, in areas of
heavy traffic or close proximity to railways and for
properties on flight paths, Secondary Double Glazing
can be upgraded to provide a significant level of transmitted
This is achieved by using Stadip Silence ® laminated
glass, with a special acoustic PVB interlayer which
acts as a dampening core between the two panes of glass.
This prevents vibration and eliminates the problems
of critical frequency transmission and high frequency
The PVB interlayer is transparent and colourless, thus
resembling normal glass.
It is impossible to give exact figures for noise reduction
in a particular situation without instructing a Consulting
Acoustic Engineer to attend site and take measurements.
This is because each situation will depend upon the
different types of noise, direction, distance, etc.
This would not be cost effective in a normal domestic
However, as a good 'rule of thumb', fitting Stadip ®
secondary double glazing inside a single glazed window
would more than halve road traffic noise.
To put this in perspective, we reproduce below Customer
letters (copies of originals are available upon request);
Norman D Kensington London SW10 28th
I did fax you a comments sheet but I just wanted to
emphasise those points. Firstly the installation looks
good (i.e. you can't see it!) and secondly, the
noise reduction in the bedroom is remarkable.
It is now necessary to look out of the window to see
if there is any traffic - and that must be one
of the busiest roads in London. One or two neighbours
have had a look at/listen to it and asked for your details.
I will pass them on.
Kind regards, Norman D
Kate and Dennis G. Fulham London SW6 1st
Dear Paul and Keith,
We wish to thank you for the secondary glazing system
that was installed at our property last week. Thursday
night was the first night we have
slept a complete night through since we moved in
to the flat! Furthermore, not only does it look like
it is part of the existing window frame and therefore
maintains the original character of the building, it
has reduced the draught and noise
levels from outside beyond our expectations.
Please pass on our sincere thanks to Roger who installed
the glazing system. We are highly impressed with the
efficiency and professionalism of all those we have
dealt with and in particular the quick rate that the
windows were manufactured and installed from the date
of the quote. In short, we will have no hesitation in
referring you to others looking for high quality secondary
Many thanks, Kate and Dennis G.
Should you require further information, advice or quotations
for this application, please
Click here to view the Secondary Double Glazing