What do protimeter moisture measurement results mean?
When used on amasonry substrate Electrical Moisture Meters:• Do NOT record % moisture• Do NOT record % saturation They record arelative reading NOT directly proportional to quantity – they are purely QUALITATIVEWhen using atimber scale on masonry results should be expressed as ‘% WOOD MOISTURE EQUIVALENT’ (% wme)QUALITATIVE COLOUR SCALES FOR USE ON MASONRYManufacturers say:‘Green’ – no problem‘Yellow’ – Further investigation and/or remedial works may be required‘Red’ – remedial action requiredNote: these interpretations are too low formasonry substrates!Probably a better level for beginning of ‘significance’ on masonry substrates would be 24 – 25% wme