Thermal Imaging and Tracer Dye Testing via Rope Access.

Think Access uses thermal imaging cameras and tracer dye testing to locate leak sources in building envelopes, drainage systems and waterproofing elements using IRATA rope access. We identify leak paths accurately before remedial works begin, eliminating trial-and-error repairs.

Scope at a glance

The problem

Hidden leak paths · Water travels far · Damp patch is not the source · Pre-repair diagnosis

Methods

Thermal imaging · Tracer dye testing · Rope-access surveys · Optimum-condition timing

Outcome

True entry point confirmed · Positive identification · Targeted repairs · No unnecessary disruption

What we do

The real challenge: finding the leak

Locating the source of a roof or facade leak is frequently more challenging than repairing it. Water can travel a significant distance within a roof or wall construction before appearing internally, so the visible damp patch rarely indicates the true entry point. Our diagnostic approach uses technology to find the actual leak path.

Thermal imaging

Thermal imaging detects variations in surface temperature caused by moisture within or beneath a roof or cladding system. Wet insulation or damp membrane shows characteristic thermal patterns, particularly in early-morning conditions when surface temperature gradients are greatest. We carry out thermal surveys from ropes at the optimum time and distance for maximum detection sensitivity.

Tracer dye testing

Tracer dye testing introduces fluorescent dye at suspected entry points. The test is carried out by applying water at roof level and observing where the dye appears internally, tracing the water’s path through the construction.

Positive identification before repair

This positive identification technique confirms the actual entry point before any repair work begins avoiding unnecessary disruption and the cost of repairs aimed at the wrong location.

Why Think Access

Finding the leak before starting the repair saves time, money and frustration. Think Access combines access capability with diagnostic technology to provide a definitive answer.

F.A.Q’s

Survey time depends on the roof area and complexity. A medium-sized flat roof of 1,000 square metres can typically be surveyed in two to three hours under suitable conditions. We provide a survey programme estimate at the point of engagement.

Thermal imaging requires a temperature differential between the internal and external environment. Cold winter mornings provide the best conditions. Results are unreliable in wet conditions, high wind or when there is no heating in the building.