Just had a wooden casement cottage style window installed, 20/24mm double glazed units were put in on site by builder. It doesn't appear that he has used putty - is this normal? There appears to be some glue or sealant between the beading on the outside and the glass but that's about it. It does give the window a very neat appearance, particularly on the inside where there is nothing between wooden frame and glass, well nothing visible.
Yes, putty is absolutely wrong for this.
He should have used low modulus neutral cure silicone sealer. The glazing unit should have been supported all arould with soft plastic spacers. The edge of the glazing unit should not contact the timber. The inside should also be sealed, in case of condensation.
Thanks Chris.
a) Would I be able to see the spacers or would they now be hidden by beading?
b) Would I be able to see the sealant on the inside or could it be hidden also?
c) I have older (12 years) cottage windows with =
They'll be hidden.
It'll either have been civered by the beading, or there'll be a line of it applied where the bead meets the glass. I'd expect you to be able to see it here and there. Some people don't put sealer around the inside - if the units are that thick there may well be no problem.
Clear has been around for ages. It may not be the best "colour", depends. I shouldn't take the beading off, but get a "glass scraper", a metal handle that holds a retractable single-edged razor blade. Make sure you get one of these, not a plastic one, or one that uses a Stanley knife blade. About £6 + a few blades. Paint the window, & when it's dry, use the scraper to chisel off paint from the glass, leaving a dead straight margin lapped onto the glass. Don't leave it too long before you do this, or the paint may chip; too soon, and it may smear. few days should be OK.
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