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Water Marks on the walls

HenryGaudet · 2015-01-05 15:40:06

Just before Christmas, I noticed these rings on the wall over my stairs: I'm new, so I don't get to post pics or links, but let's give it a go anyhow: www . pinterest . com / pin / 149252175127183790 / ). This is an exterior wall, and I'm guessing there's water getting in somehow, but I'd expect to see water running from…

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05-01-2015 4:40pm

#1
HenryGaudet

Registered Users Posts: 1 ✭

Join Date: January 2015

Posts: 0
Just before Christmas, I noticed these rings on the wall over my stairs:

I'm new, so I don't get to post pics or links, but let's give it a go anyhow: www . pinterest . com / pin / 149252175127183790 / ).

This is an exterior wall, and I'm guessing there's water getting in somehow, but I'd expect to see water running from the top down, not these rings. Can't find any leaks in the attic either. To be honest, I'n not sure exactly what I'm looking at here or how to proceed. Any thoughts?

Tagged:

water damage

leaking wall

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#2 05-01-2015 4:42pm
Clseeper

Registered Users Posts: 282 ✭✭

Join Date: March 2006

Posts: 256

Looks to be cold bridging caused by the dot & Dab adhesive used to stick up the plaster board.

The hot Humid air inside your house is condensing on these cold spots and eventually dripping down. Solutions: better ventilation in that room or insulate the wall.

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