wrote:

Tim Watts wrote:

snip

Could be any number of reasons such as a high spot somewhere, a bit of
debris between glass and frame, temperature variations etc - or even the
vibration from the kids loud boomboox :-) . Glass is a very touchy
material to work with.

b) (Worse) I'm doing glazing fundamentally wrong. I don't (hope)
think so as I used proper glazing packers, bridges and packed the DG
in nicely without forcing it.

Even the pros get the same problem.


Thanks for that. I'll be super careful about cleaning the strips and
checking it next time.

and:

How does one measure a panel when fitted for replacement?

I have the invoice, so the company might have it on record and can
just make me another one. But if not, I'd rather not de-glaze to
measure as I'll have a hole in the wall for a week while I wait for a
new panel.

I know you are reluctant to do so, (but presuming that the information is
forthcoming from the company) the easiest method in your case is to simply
remove the beads and measure the glass in three dimensions (length,
breadth *AND* thickness) and temporarily replace them when that is done
(it shouldn't take long and the glass unit should stay in one piece).

When you fit the new unit, ensure that every thing is clean and free from
any high spots between the glass, frame, rubbers and beads.

Is there a way to determine size from the frame or the visible parts
of the glass?

There is, but you will have to do a certain amount of guesswork with
regards to the thickness of the packers, thickness of the unit etc.

OK - ta. I have plywood available if the worst comes to pass when I take it
out. But I'll phone the supplier first.

Cheers

Tim

--
Tim Watts