Are you going to put a double glazed unit in, I have done a number of these on Victorian houses and with the glass being so thick back then I have managed to get a unit in with thinner glass and a small thickness spacer bar and the unit weight has been roughly the same so no problem with using the original cast iron weights.
That's always a choice that has to be made when refurbishing. In this instance I was working with 3mm Glass and the client decided to stay with the same arrangement. Yes thin insulated glass is now available so the difference in weight is probably negligible. I take each case on its own merits, if Double glazing then I would generally advise new Box Sash frames with a wider aspect to accept thicker Sashes. Weights can be added to or alternatively the use of counterbalance systems. Hope this is of interest. Will
Great video! Thank you for sharing your knowledge.
Are you going to put a double glazed unit in, I have done a number of these on Victorian houses and with the glass being so thick back then I have managed to get a unit in with thinner glass and a small thickness spacer bar and the unit weight has been roughly the same so no problem with using the original cast iron weights.
That's always a choice that has to be made when refurbishing. In this instance I was working with 3mm Glass and the client decided to stay with the same arrangement. Yes thin insulated glass is now available so the difference in weight is probably negligible. I take each case on its own merits, if Double glazing then I would generally advise new Box Sash frames with a wider aspect to accept thicker Sashes. Weights can be added to or alternatively the use of counterbalance systems. Hope this is of interest. Will