Hi,
A couple of years ago I had a couple of windows replaced and I noticed the windows both have incredibly cold window sills. I had a look on the outside and there are a couple of obvious gaps in the exterior sill that I can easily mastic up which will hopefully help a bit.
Under the sill tho is a led flashing which seems to have pretty big gaps - above in one case, under in the other. Am I OK to fill these with sealant?
Bathroom for context and showing 1 area which is easily fixed:
But under that flashing is this:
which certainly explains the condensation on the tiles inside.
Second window on our stairs. The flashing in this case comes out onto a 15 degree roof:
This one is a bit different in that the gap is above the flashing this time:
This one isn't quite so cold, but still pretty bad.
So question - can I just seal all these up with a mix of foam and exterior sealant? Or is that going to block important waterways or ventilation?
Thanks in advance,
Avendit.
A couple of years ago I had a couple of windows replaced and I noticed the windows both have incredibly cold window sills. I had a look on the outside and there are a couple of obvious gaps in the exterior sill that I can easily mastic up which will hopefully help a bit.
Under the sill tho is a led flashing which seems to have pretty big gaps - above in one case, under in the other. Am I OK to fill these with sealant?
Bathroom for context and showing 1 area which is easily fixed:
But under that flashing is this:
which certainly explains the condensation on the tiles inside.
Second window on our stairs. The flashing in this case comes out onto a 15 degree roof:
This one is a bit different in that the gap is above the flashing this time:
This one isn't quite so cold, but still pretty bad.
So question - can I just seal all these up with a mix of foam and exterior sealant? Or is that going to block important waterways or ventilation?
Thanks in advance,
Avendit.
