Water stain above window

[Sarah Gallagher]

Hi all, we have water stains above the windows in our bedroom. The bedroom is a converted loft/attic so the windows are slanted Fakro. The stains have been there since we moved in, and when we moved in the previous owners had left the windows open from at least June to end end of august (when we moved in house). So we’re unsure if it’s something to do with the windows being left open or something else. They’re not damp to touch but paint has stated peeling on one side. Any ideas? Thank you! [GALLERY=media, 107079]214C1A07-D555-44E5-8ACE-186BD72B1D72 by Sarah Gallagher posted 3 Oct 2021 at 12:04 PM[/GALLERY][GALLERY=media, 107078]6C401939-59B7-4358-B70B-63C857F51147 by Sarah Gallagher posted 3 Oct 2021 at 12:04 PM[/GALLERY][GALLERY=media, 107077]63A6D2AC-0D1B-426C-B6B8-24E7C164FE02 by Sarah Gallagher posted 3 Oct 2021 at 12:04 PM[/GALLERY][GALLERY=media, 107076]7B73D0B2-E1C9-4468-B324-E85E04E30EB2 by Sarah Gallagher posted 3 Oct 2021 at 12:04 PM[/GALLERY]

 

[KenGMac]

Sarah Gallagher, good evening.

Can I suggest that firstly you get a moisture meter? if you know someone with one, borrow it or? they are not that expensive in large DIY stores such as B&Q [other such outlets exist] that way you can be fairly positive if or not the plaster is wet / damp / dry?

Another "quick" check is to have a look at the external top of the window, there will be a gap between the tiles or slates and the window which will be water tight, but if this area is full of dirt and debris that may ??? be the source of this issue?

Have a look at the tiles / slates above the window on the roof surface you may be able to see a missing tile or a cracked slate / tile ?

Ken.