Secondary Glazing in South East
Secondary Glazing in South East
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Discussion

thegman

Original Poster:

1,928 posts

227 months

Monday 29th November 2010
quotequote all
Has anybody had any experience of using secondary glazing on top of double glazing to reduce noise?

Also can anybody recommend a firm? No way I am going any where near the usual rip of merchants - e.g the one name after the big mountain

cheers

illmonkey

19,619 posts

221 months

Monday 29th November 2010
quotequote all
I've not used them, but have been recommended them by a friend

http://secondaryglazing.com/main.htm


Also, this one, prices are competitive, but just one I found http://www.duration.co.uk/


andye30m3

3,496 posts

277 months

Monday 29th November 2010
quotequote all
A guy in our office is looking at using it in a London hotel.

I've not had anything to do with it but from what I've heard for acoustic purposes you need to leave a reasonable gap (circa 100mm) between the double glazed unit and secondary glazing, I might be able to get a copy of the glazing spec suggested by our acoustic consultant later in the week.

mk1fan

10,852 posts

248 months

Monday 29th November 2010
quotequote all
Accoustic performance and thermal performance (in terms of standard glazing) is contradictory.

Thermal performance needs a small gap sealed between the glass panels. Accoustic performance needs a large gap between the glass panels.

It might be worth checking that the windows are the 'issue' before spending the money on secondary glazing.

thegman

Original Poster:

1,928 posts

227 months

Monday 29th November 2010
quotequote all
mk1fan said:
Accoustic performance and thermal performance (in terms of standard glazing) is contradictory.

Thermal performance needs a small gap sealed between the glass panels. Accoustic performance needs a large gap between the glass panels.

It might be worth checking that the windows are the 'issue' before spending the money on secondary glazing.
How would I do that?

Issue is that I want to reduce road noise. We have double glazing (cheap stuff) but it doesnt really seem to be limiting any of the noise - the sound certainly seems like it is coming in at the windows....

mk1fan

10,852 posts

248 months

Monday 29th November 2010
quotequote all
Sound can travel some pretty tortuous paths to enter a room.

You say the existing windows are cheap. Have they been properly installed? Are they properly sealed around the edge internally and externally? Are the glass units properly seated and sealled?

Away from the windows what type of property is it? New, old, flat, house, detached, terrace, cavity, masonry, timber framed, pitched roof, flat roof?

I'm not suggesting that secondary glazing won't fix your problem but as cash seems to be a factor I suggest you spend it in the right place.