Sealing a Window Frame?

[mac456]

Hi all,

I have been having fly issues for the last few days which I think is due to the kitchen Window.

From the outside it is badly sealed as you can see in the pictures and on the inside I think the flies are coming through a hair line crack which runs along the wooden ledge of the frame.

On the inside I was going to use decorators caulk, is this ok?

What can I use for the exterior? Is something like this ok? https://www.screwfix.com/p/no-nonsense-exterior-frame-sealant-white-310ml/21638

Also could there be any reason why they have stopped sealing the exterior at the same part on both sides?

Thanks

 

[crank39]

Yes because the cement was still wet on the brick horns.

Caulk is fine inside unless its a kitchen or bathroom, where there is a possibility of humidity I prefer to use silicone but one with an anti mould/fungal agent. For the outside just use an LMN or low modulas neutral curing silicone, personally I'd steer clear of no nonsense stuff, soudal or dow corning are a safe bet

 

[mac456]

Thanks for the advice.

So I am good to seal up the outside gaps as they have been like for years no doubt?

Regarding the inside my only concern with using silcon is that I wont be able to paint it as the crack runs through the wooded part of the frame (although nearest to the window)

 

[crank39]

Ah paint, then use caulk and seal it with paint

 

[mac456]

Thanks! Bought and ready to go...

Out of curiosity would you cut the old stuff out first Or just fill in the gaps?

 

[crank39]

Pull it all out