nome wrote:
Hello

Hoping for some advice.

We have a double glazed wooden window frame in our bathroom in the
house we have bought. It gets splash from the shower that massively
damaged the internal wooden sill turning it to black powder/rot?. We
pulled off the sill to find that the actual window frame had also been
damaged at the bottom where the sill would have butted up to..

The wood seems to have shrunk/cracked/receeded and is soft like balsa
wood. And can be broken off if wanted. This damage does does not
extend all the way to the glass but a fair way up. The wood is now dry
however.

I was told just to prime the wooden frame where exposed and damaged,
fill a void in front of the frame (where the sill rested on before)
with expanding foam and put on another sill.

I was wondering if the frame needs more than priming as it is so soft
and their are some significant "cracks".

Cheers for any advice

nomit

I scrape out what I can with a bluntish chisel
then brush on Ronseal Wet Rot Wood Hardener
(comes in a green tin)
then use foam,
then wood and car body filler or plastic wood.

Last year I used plaster cement cos its a lot cheaper
but it cracks so that was a waste of time and money.

And because the damp was coming from the outside
(and they hadnt been painted for many many years)
I poked through holes to the inside
and left them there for many months
so the wood could dry out to the inside of the house.

(But your damp seems to have been coming from inside,
from the shower and condensation, and been trapped in there)

[g]