These are the windows to the changing rooms of a gym, hence the obscured glass. They had been painted shut for quite some time and we were asked to get them working again.
The challenges were two-fold; find out why they had been painted shut and correct it, and perform the work without holding-up too many gym goers in need a shower!
After removing the beading and sashes, it quickly became clear that a broken sash cord was the cause of the problem. We installed our long-life sash cords to put the matter right. The vital point to note with the cords is that the ends MUST be sealed to prevent fraying. We use a very specific model of German hotknife which simultaneously cuts the cord and seals the cut end in a matter of seconds using a 600 degree C blade.
We refitted the sashes with beading that has as draft-excluding pile machined into it. Finally, we made sure the sashes were opening, closing and meeting perfectly. The windows can now be opened in summer or when the changing rooms are full of condensation, and when closed they’ll keep out the cold just as well as when they were painted shut.
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