Apart from the use of a hammer, is there any easy way of checking that
double glazing units fitted to my new front door are actually toughened?
Elsewhere in the house, glass below waist height has an etched kite mark
and BS number.

Is such glass necessary where the width is only a bit over 4"?

regards

--
Tim Lamb

"Tim Lamb" wrote in message
...
Apart from the use of a hammer, is there any easy way of checking that
double glazing units fitted to my new front door are actually toughened?
Elsewhere in the house, glass below waist height has an etched kite mark
and BS number.

Is such glass necessary where the width is only a bit over 4"?

regards

--
Tim Lamb

See http://www.planningportal.gov.uk/wal...000001244.html

Peter

On Oct 11, 6:38 pm, Tim Lamb wrote:
Apart from the use of a hammer, is there any easy way of checking that
double glazing units fitted to my new front door are actually toughened?
Elsewhere in the house, glass below waist height has an etched kite mark
and BS number.

Is such glass necessary where the width is only a bit over 4"?

regards

--
Tim Lamb

IME all toughened units should have a kitemark on both panes of a
toughened DG unit.

JimK

On Oct 11, 6:47*pm, JimK wrote:
On Oct 11, 6:38 pm, Tim Lamb wrote:

Apart from the use of a hammer, is there any easy way of checking that
double glazing units fitted to my new front door are actually toughened?
Elsewhere in the house, glass below waist height has an etched kite mark
and BS number.

Is such glass necessary where the width is only a bit over 4"?

regards

--
Tim Lamb

IME all toughened units should have a kitemark on both panes of a
toughened DG unit.

JimK

They usually do, but it is possible to specify that you'd like it
without. You often get some slight rippling in the glass from the
heating during toughening, which I've never seen on non toughened. It
shows up best if you can look at something reflected in the glass - if
you get a slightly distorted reflection, it's probably toughened.

A

In message , Peter Andrews
writes

"Tim Lamb" wrote in message
.. .
Apart from the use of a hammer, is there any easy way of checking that
double glazing units fitted to my new front door are actually toughened?
Elsewhere in the house, glass below waist height has an etched kite mark
and BS number.

Is such glass necessary where the width is only a bit over 4"?

regards

--
Tim Lamb

See http://www.planningportal.gov.uk/wal...000001244.html

Apparently not. So long as the total area does not exceed 0.5m2 and the
narrow width is less than 250mm. Quite big really.

regards

--
Tim Lamb