Party Wall Bruce Spenser Ltd

https://pwbsl.com

Sulphate attack to a Chimney Stack

The flue’s inner coating has broken down; Condensation builds up within the flue and migrates into the external mortar between the bricks.  The water reacts with the soot and expands – the mortar pointing comes away – The stack may need re-building.

Party Wall Bruce Spenser Ltd

https://pwbsl.com