Waterproofing pinholes and wet areas in Box Hill NSW

Across the Box Hill jobs behind this site, pinholes in the waterproofing membrane appear more often than any other defect. They turn up in shower recesses, at hobs, in niches, at entries and in powder rooms, sometimes several in one bathroom. A pinhole is a break in the membrane about the size of a pen tip, usually a burst bubble in the coat or debris trapped underneath. It will not fail a glance from the doorway. It will fail a proper look, and once the tiles are down it is a leak waiting for a year or two to pass before it announces itself in the room next door.