Gap/hole between window fascia and wall

[daisy12345]

Hello, I'm in the middle of painting a small first floor bedroom, and noticed that there are some gaps above the bay window fascia. There is some flaky old foam in place but it falls apart quite easily. Can also feel some draught in the gap/hole on the top left corner (about one finger's width), suggesting it leads to the outside? Wondering what's best to fill it from inside please? Expanding foam or caulk? Guess the outside gap we'll need to leave to a roofer to sort out.

Any comments or advice would be much appreciated!

 

[diy_fun_uk]

Closer up pics of the gaps would be useful however this would likely do the trick. Note larger gaps should first be part filled e.g. with tissue paper.

Geocel Painters Mate Flexible Acrylic Filler White 310ml | Decorators Caulk | Screwfix.com

Or depending on the layout of the gaps, this might suit your needs better.

No Nonsense Lightweight Filler White 1Ltr | Multi Purpose Fillers | Screwfix.com

 

[daisy12345]

Closer up pics of the gaps would be useful however this would likely do the trick. Note larger gaps should first be part filled e.g. with tissue paper.

Geocel Painters Mate Flexible Acrylic Filler White 310ml | Decorators Caulk | Screwfix.com

Or depending on the layout of the gaps, this might suit your needs better.

No Nonsense Lightweight Filler White 1Ltr | Multi Purpose Fillers | Screwfix.com

We've got some Polyfilla (https://www.screwfix.com/p/polycell-trade-polyfilla-easy-sand-interior-filler-white-2kg/7968f). Wonder if it can work as well?

 

[diy_fun_uk]

We've got some Polyfilla (https://www.screwfix.com/p/polycell-trade-polyfilla-easy-sand-interior-filler-white-2kg/7968f). Wonder if it can work as well?

Should do the job fine