Looking for advice on under bay window wall issue

[Tomarnemonsen]

Hi all,

I’m looking for opinions and advice as to what the issue I am experiencing is and a solution for it.

Please see my attached photos; a section of the exterior wall under my bay window has what looks to me a damp patch (particularly worse when it rains, as it is today when these photos were taken). The second photo is inside my living room on the inside of that wall.

As you can see, the exterior wall appears to be absorbing rain water and the result is the paint on the interior wall is blistering and peeling; would I be right in thinking the issue here is the exterior render? And having the section re-rendered would solve this?

Thanks in advance for all responses.

 

[Dollar]

Ground level too high /single skin

your welcome

 

[Brimstone]

Might find myself agreeing with Dollar here. Not sure about single skin but it looks deeper inside than out, and what is that brown srtuff on the wall?

 

[Monkey Boy]

Windows are meant to be sealed where sits on the cill
Rarely see it done right
Could be another factor???

 

[Dollar]

Windows are meant to be sealed where sits on the cill
Rarely see it done right
Could be another factor???
View attachment 61236

That is normal MB
Frame Sat on 150 cill leaves that gap .

your welcome

 

[Monkey Boy]

That is normal MB
Frame Sat on 150 cill leaves that gap .

your welcome

I know what your saying but there is meant to be sealant too

 

[tapit]

Windows are meant to be sealed where sits on the cill
Rarely see it done right
Could be another factor???
View attachment 61236

No, no, no, Monkey. Upvc windows should only ever be sealed internally to the cill. Rarely seen it happen mate.

 

[tapit]

I know what your saying but there is meant to be sealant too
View attachment 61241

The sealent where you have indicated would prevent the window from draining. Are you a Croatian window fitter by any chance?

 

[Monkey Boy]

Further detail

 

[tapit]

Mate I quite like your comments but don't try and educate a bloke who has been fitting windows for over forty years. The drainage hole is in the bottom of the window frame and drains down to the cill and escapes at the front of the cill. The exception would be if it was face draining IE no cill.

 

[Monkey Boy]

I like your posts too
I’m saying sealant is behind drainage hole though.....

 

[tapit]

No mate, sealant would be at the back of the cill and also across both ends of cill to stop water draining towards internal walls.

 

[Monkey Boy]

No mate, sealant would be at the back of the cill and also across both ends of cill to stop water draining towards internal walls.

Appreciated
Doing it where I do it saves going across both ends my love

 

[tapit]

The drainage holes on a window are to the rear of your red marker. Don't push your luck I have already been courteous mate.

 

[Tomarnemonsen]

Ground level too high /single skin

your welcome

Thanks for your response Dollar. Is there anything that can be done about this? (I’m assuming no)