How can you be sure a roof membrane is as watertight on handover day as it was on the day it came off the production line?

FACT
From the day they are first laid down large commercial roof areas become working platforms.

FACT
With the volume of work carried out damage to the roof membrane can occur.

FACT
Even the act of laying and removing a protective layer can damage the roof.

FACT
If protection is laid down, sharp debris can still find its way underneath and damage the roof membrane.

FACT
Occasional traffic will occur throughout the life of a roof sometimes resulting in damage to the membrane.

FACT
Persistent ingress problems may not necessarily require complete re-roofing.

FACT
All leak points or potential leak points are unlikely to be revealed by a visual survey alone.

FACT
Water ingress may be causing latent damage to the building structure, without any obvious visual effects.