Holiday Detector Test

Often referred to as the "dry test". This method is ideal for use on any flat or low pitched roof to identify defects in exposed membrane systems allowing for a quicker testing schedule identifying defects such as pinholes and punctures.

This test can only be performed in dry conditions

Method

The detector delivers, via a phosphor-bronze brush, a stabilised D.C. output voltage across the non conductive waterproofing membrane under test. Detection of defects is by an audible tone and a visual spark from the search electrode (brush)

свернуть