95 730il E38 rear window replacement ? double glazed or single ?

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Alistair - 25 Jul 2008 08:41 GMT

Hi,

This car originally had a double glazed rear window. The double glazed
replacement window is very expensive, so I am hoping that I can use the
single glazed window for E38 instead?

Can anyone tell me if this will be a problem?

Thanks

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Jeff Strickland - 25 Jul 2008 15:34 GMT

I don't think you have a choice in the matter.

There are laws that define the glass that must be used, and it requires two
layers with plastic goo in between them to hold the glass together if it
breaks.

> Hi,
>
[quoted text clipped - 5 lines]
>
> Thanks

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Dave Plowman (News) - 25 Jul 2008 16:03 GMT

> I don't think you have a choice in the matter.

> There are laws that define the glass that must be used, and it requires
> two layers with plastic goo in between them to hold the glass together
> if it breaks.

That's laminated glass - different from double glazed.

Double glazed has two sheets of possibly laminated glass with an air gap
between them - to reduce noise transmission.

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*Do paediatricians play miniature golf on Wednesdays?

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

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Jeff Strickland - 25 Jul 2008 16:37 GMT

>> I don't think you have a choice in the matter.
>
[quoted text clipped - 6 lines]
> Double glazed has two sheets of possibly laminated glass with an air gap
> between them - to reduce noise transmission.

I know what dual-glazed is, I am not aware of it being available in an
automobile because of the curved surface of auto glass. I was thinking the
OP used the wrong term. Dual glazing in a home is an effort of climate
control -- heat transmission is reduced in a dual glazed window.

Are you saying that they make dual glazed windows for cars? If there is such
a thing, I would guess that the design considerations necessary to support
dual glazing would make conversion back to a single glazed window cost
prohibitive, which should make the decision on which to use pretty easy.

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Dave Plowman (News) - 25 Jul 2008 19:57 GMT

> I know what dual-glazed is, I am not aware of it being available in an
> automobile because of the curved surface of auto glass.

It is.

> I was thinking
> the OP used the wrong term. Dual glazing in a home is an effort of
> climate control -- heat transmission is reduced in a dual glazed window.

Used for noise reasons on cars - as I said.

> Are you saying that they make dual glazed windows for cars?

Yes.

> If there is such a thing, I would guess that the design considerations
> necessary to support dual glazing would make conversion back to a
> single glazed window cost prohibitive, which should make the decision
> on which to use pretty easy.

The OP reckons it was an optional extra on his car. So it is possible a
standard screen can be fitted as I doubt the body itself is different.

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*Young at heart -- slightly older in other places

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

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hsg@h-gee.co.uk - 25 Jul 2008 20:12 GMT

>>> I don't think you have a choice in the matter.
>>
[quoted text clipped - 16 lines]
>dual glazing would make conversion back to a single glazed window cost
>prohibitive, which should make the decision on which to use pretty easy.

Double glazed or dual glazed windows are an option on some BMW and Merc cars
that on the E65 in the UK is about £2k and it covers both rear doors and rear
screen it is also heavily tinted or sun protection film applied.

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Sir Hugh of Bognor

The difference between men and boys is the price of their toys.

Intelligence is not knowing the answer but knowing where and how to find it!

Hugh Gundersen
hsg@h-gee.co.uk
Bognor Regis, W.Sussex, England, UK

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Jeff Strickland - 25 Jul 2008 20:38 GMT

>>>> I don't think you have a choice in the matter.
>>>
[quoted text clipped - 23 lines]
> rear
> screen it is also heavily tinted or sun protection film applied.

I did not know that.

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