i have a second story fixed wooden window sash where the paint never went over the top of the putty along the bottom of the sash , water has rotted about an inch or so of the bottom corner of the sash , this repair will be builders bog . but what i want to ask is that the putty looks to be stable , some fine cracks but well bonded . my first thought is to rake out all the putty ,sealer , new putty which is the proper way . but as the putty is still good can i putty any cracks etc and repaint? (the rot to the sash is internal )
i should add , the corner where the rot is the putty is flat at the point where it meets the glass for 3 mm rather than a sharp 45 degree angle with no paint mastering the glass. this has caused the water ingress
budgel,
Dec 10, 9:40pm
You know the 'proper' solution, but if you sand back the old putty a little and cover it well with a good paint job it should be ok. Getting rid of all the old rot spores around where you are going to bog is more important.
wasgonna,
Dec 10, 10:32pm
Yep. Remove all rotten wood back to solid and mist spray with neat Janola, or any cheap bleach. Allow to dry then use filler.
bergkamp,
Dec 11, 3:47am
was going to use metalex for this
Am now rethinking this and might replace entire sash
stevo2,
Dec 11, 4:45am
Very good call. Doing the bog up job is just buying you time. Replacing the sash is (relatively) cheap and simple. If the rot spreads into the frame however - the cost escalates VERY quickly.
trade4us2,
Dec 11, 6:54am
I had a rotten sash. I use metalex but it kept getting worse. I made a new sash. That took a very long time and I will never do that again. However I used H3 timber so it won't go rotten.
bergkamp,
Dec 11, 7:42am
and on it goes . further investigation and it looks like one mullion is compromised . neatly bogged and painted by previous owner ! . so
2 new h3.2 fixed sashes . single glaze longitudinal halfing joint screwed and glued to vertical member mullion bog to isolated part of sill repaint
this is going to start getting over 5k i am guessing . might have to do it myself !
trade4us2,
Dec 11, 5:12pm
The sash I made cost about $20 for the timber, and a router bit was about $35, Making sashes may be OK if you are set up for it, which I am not.
stevo2,
Jan 29, 5:03pm
I estimate a sash (glazed) would cost around $300 from a joinery shop. They come in a range of sizes so may get a second hand one that fits for $50 from a demo yard but unlikely. The majority of sashes are made out of cedar as it will remain straight and not twist or warp as pine is prone to do. An alternative is finger jointed pine as that is far more stable than standard pine. The joinery shop we use has a few dry lengths of sash, mullion and sill sitting on the shelf ready for any urgent jobs
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