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Damp Proofing

Strange green substance

Strange green substance has appeared on some walls recently

It's in a storage room. These are ply boards fixed onto tanked walls with a plastered ceiling. The room is slightly damp for reasons we are trying to figure out but we think due to a possible leak in the flat roof above.

2 Answers from MyBuilder Damp Proofing Specialists

Best Answer

The tanking maybe breached this would cause water ingress depending on how it’s tanked i.e slurry or membrane or like you say there might be a leak somewhere and water will make its way down


Answered 9th Apr 2021

Trying to diagnose damp from pictures or a description is near enough impossible. Try searching for a local damp proofing specialist or a general builder that also undertakes this type of work. They will almost certainly diagnose the problem for you free of charge as part of the quotation process.


Answered 21st Apr 2021

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