by Inform Timber and Damp »
Sun Jan 25, 2009 1:33 pm
I am not keen on using dot and dab where damp is or was a problem, as both the adhesive and the plasterboard are very moisture sensitive and dabs will act as cold spots. damp on bays mostly caused bt water ingress around the window, corner posts and junction witjh the wall. Sound pebble dash is a good water repeller is it sound. is window wood or plastic ? does the cill project wall to throw water off building, are ground levels high, does pavement fall towards builing allowing water to sit against building? need to check all thse. Is the timber floor well ventilated below, are joists ok cos if it was rising damp or penetrating damp at base of wall problem these would be affected
Once source found tthen 2 options, tank using a cementitious slurry, and replaster in renovating plaster i prefer limelight or dri coat but can be difficult to source. or i have used drylined pnelling, others may think this strange but Victorians often panelled under windows and used drylining lathe and plaster very effectively if only slight moisture mvt. Many of our modern plasters fail very quickly in the same situation- modern tech eh!