If your windows are particularly old and have never, or at least not in the last 30 years, had the putty replaced then there is a chance that the putty itself may contain asbestos. This common misconception does lead some DIY’ers to try and replace panes of glass into frames just using the putty to hold it with not much success and more often than not a smashed pane of glass on the floor.įortunately, if the window putty was applied correctly in the first place, it can last for many many years before it needs to be replaced, so thankfully, this shouldn’t be a job that needs to be done too often.Ī single pane glazed window using traditional putty to seal it that’s now old and damaged A Quick Note on Asbestos and Lead Paint The glazing putty is simply there to seal the glass to the frame and prevent any draughts or water ingress into the frame. Small nails or spriggs as they are also known were then hammered down into the frame to hold the glass in place.Ĭontrary to what some people think, it’s the nails that hold the glass in the frame and not the glazing putty. Why was Glazing Putty Used?īack in the days before upvc and double glazing, windows were traditionally formed by using either steel (usually galvanized) or timber to build the frame and a single pane of glass was dropped into it. This may sound like a very simply straight forward job, but if you have never done it before there is a fairly wide scope for things to go wrong, so read on below for tips on how to remove old putty with the minimum of fuss. Once the putty is gone, remove any glass retaining nails and then the glass should pop straight out. Removing and replacing old glazing putty from single pane window frame to remove the glass is one of the all time most hated jobs by tradesmen and DIY’ers alike.Įssentially, removing single pane glazing is as simple as prying away any old putty (or glazing compound) from the window frame and softening any stubborn areas with a heat gun or linseed oil as required.
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