Electronic leak detectionELD

A non-destructive survey method that finds breaches in roofing and waterproofing membranes by applying a voltage across the membrane and locating points where current passes through to a conductive substrate or wet deck. Low-voltage and high-voltage variants exist, and both pinpoint defects far more precisely than flood testing.

Also known as: membrane integrity testing, leak detection survey

Related terms

Infrared thermography

A non-destructive method that uses an infrared camera to map surface temperature, revealing subsurface defects, trapped moisture or thermal bridges by their effect on heat flow. Active thermography with controlled heating is used on composites to find disbonds and impact damage, while passive surveys are widely used to locate wet insulation in flat roofs.

Testing & standardsRoofing & waterproofingAerospaceAutomotiveConstructionMarineGreen energyIndustrial

Single-ply membrane

A factory-manufactured polymeric waterproofing sheet, typically EPDM, TPO or PVC, installed in a single layer and joined at laps by welding, adhesive or tape. Single-ply systems may be mechanically fastened, fully adhered or ballasted, and are widely used on flat and low-pitched roofs.

Roofing & waterproofingConstructionIndustrial

Flat roof

A roof with a very low pitch, in UK practice generally taken as no more than 10 degrees to the horizontal. Flat roofs rely on a continuous waterproof covering rather than overlapping units, and must be laid to falls so that rainwater drains to outlets.

Roofing & waterproofingConstructionIndustrial

Ready to start?

Create an account to browse and specify, or schedule a consultation to talk through your project with one of our specialists.

Schedule a consultation Create an account

Schedule a consultation

Arrange a call with a specialist to discuss your application.

Choose a time

Browse the catalogue

Explore the full range of advanced materials and systems.

View products