Internal Efflourescence in Passage Behind Front Door
Posted: Wed Dec 12, 2018 10:28 pm
Property mid-terraced, brick built around 1902. Passage behind the front door for approx 5 metres has a band of white efflourescence at about knee-height. No mold or obvious wetness & the plaster is as old as the house. A length of skirting board which was installed about 20 years ago is still solid and new-looking. Its the wall between us and the neighbours. Any ideas?