Re: Re: Irish say no to PVC windows

I’m for the concept of secondary glazing behind historic sash windows in principle. It would have been something worthy of mass promotion here 25 years ago – before the plague! But it’s too late now.

It just looks terribly conspicuous in those two examples you’ve given. If it can be done discreetly, the internal – and to a lesser extent external – visual damage to the window and its casing is a small enough price to pay relative to complete loss of historc window fabric with PVC or poorly-detailed double-glazed sash replacement.