Hi all – I’m hoping if you can assist a novice here…
See the attached photos of the damp patch in my kitchen outer wall, this adjoins my bathroom (yes, it is a downstairs bathroom), and the back door and kitchen.
This has gradually worsened over the last few months, but was first noticed a few years back, when the kitchen had a re-vamp, and the new back door was fitted.
These photos were taken over a dry weather period – at that point it hadn’t rained for over 10 days.
Outside, we recently removed some of the patio which had been fitted 10 years ago (it was located right up to the rendering on the outside wall), because we were told it could have breached the existing damp course.
Hi lewism It looks like your patio is level with the DPC - if you have similar damp ingress along the whole of the wall then you will have to form a mini trench where the patio meets the house wall. It will be some time before drying out occurs. You say the bathroom is next to the kitchen - is the corner with the damp part of the bathroom wall? If yes then look for water leaks in the bathroom. Regards S
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