On Wednesday, 17 July 2019 13:35:26 UTC+1, Dan Green wrote:
Hi all,

Can anyone explain what kind of damp this is and what might be causing
it? There is nothing amiss or damaged on the outside of the building that
could account for it so I'm at a complete loss as to what the underlying
problem could be. Here's a pic:


http://oi66.tinypic.com/1zzgvn4.jpg

It could be water getting through bad pointing or cement rendering as well as the above.
It could be many feet above the door and dripping on to the cavity tray above the door & running off the end of it.

https://www.google.com/search?q=imag...e7lP-T_uMFB7M: