Whats causing damp and cracks?

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DIYinfo
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Whats causing damp and cracks?

Post by DIYinfo » Fri Aug 25, 2017 4:50 pm

Can you tell me what is possibly causing damp and cracks in communal hallway, ceiling shown in image, roof is above the hallway ceiling. There is a window in the wall below the ceiling 3 to 4 ft lower than the ceiling, The window is kept continually open, even in winter. I dont have access to the loft and roof above.
I have enhanced the image to make it more visible.
Image
Here is what it looks like in reality without photo enhancement exaggeration, and how it actually looks like in real life.
https:Image
Here are some others of the ceiling. enhanced picture.
Image
this is what it actually looks like
Image
There are also cracks in the corner of the wall, at the seam, edge.
Image
Notch1
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Re: Whats causing damp and cracks?

Post by Notch1 » Fri Aug 25, 2017 4:59 pm

A picture from much further back and one from outside is needed to get any idea what is causing it.

Given that it is at ceiling level, a roof leak is favorite, but without knowing what the roof construction is, its impossible to tell.

The photo shows water has run onto the top of the plasterboard, then run across until it has got in at the corner.

Does it happen on rainy days?

Have you had any roof work done recently, loft or cavity insulation?
DIYinfo
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Re: Whats causing damp and cracks?

Post by DIYinfo » Sat Aug 26, 2017 11:07 am

The roof was repaired some years back, I cant remember what side it was, the owners of the leasehold will not allow me access to the roof, (I am the freeholder) so a solicitor is having to deal with them.
I have not noticed it getting worse, could this be old damage from the past? Or would it of dried out? Would you say this is ongoing?
I a not sure if any loft work, insulation etc has been done, as the leaseholders will not talk to me at all.
Notch1
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Re: Whats causing damp and cracks?

Post by Notch1 » Sat Aug 26, 2017 11:26 am

DIYinfo wrote:The roof was repaired some years back, I cant remember what side it was, the owners of the leasehold will not allow me access to the roof, (I am the freeholder) so a solicitor is having to deal with them.
I have not noticed it getting worse, could this be old damage from the past? Or would it of dried out? Would you say this is ongoing?
I a not sure if any loft work, insulation etc has been done, as the leaseholders will not talk to me at all.

They dont sound very helpful :-)

If can reach it, put some pencil marks around the perimeter of the staining, if it spreads you will know.

Next time you get a period of sustained heavy rain, see if its wet. Some leaks only occur in strong winds, so note the conditions.

Unfortunately, looking at the staining reveals nothing really, the outside and the loft is where the cause of the problem can be found.
DIYinfo
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Re: Whats causing damp and cracks?

Post by DIYinfo » Sat Aug 26, 2017 1:35 pm

Thank you for the info.
If whatever is making the damp was fixed from the roof or loft. What kind of fix would need to be done from the inside on the ceiling and walls?
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