Damp internal shed wall

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Apr 5, 2019
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Hi all,

I'm looking for some ideas regarding a constantly damp internal shed wall.
The same "shed" structure continues all along about 10 neighbours gardens.
There is an exterior garden concrete wall, then a gap of less than an inch then the shed wall.
I previously covered to top of my gap at the back of my garden with cement (at a slant) but most of the neighbours still have
the gap.
I'm assuming that water is still getting down the gap further along the exterior wall.
It was suggested to me to drill "weep holes" into the back exterior wall at he back of my shed.
This will allow water to escape that's probably just sitting there in the gap , and allow more air to get
in ?

Neighbours internal shed wall is also damp.

Does "weep holes " sound like a good starting point ?

is it worth sealing the outside wall or sealing the inside wall ?

You can see from the pics that the very top brick inside the shed is dry but the 2 below that are damp even though they are
above they height of the garden wall and are exposed to wind therefore should be dry ?

Mondo
 

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