"Cicero" wrote in message
. uk...

You need to check that the rebates are deep enough to accept the DG units.
They're usually a minimum of 11mm thick which is quite a bit thicker than
standard glass (4mm). Beading is quicker and easier than putty and looks
much neater unless you're an expert with the putty knife.

It also reduced the area of glass by quite a lot, thus negating one of the
benefits of using the original frames..

Mary