Hygrothermal Testing

Every year of a building’s service life, its external elements will be subjected to numerous cycles of heating, freezing, thawing, wetting and drying. These repeated conditions can lead to a premature failure of the product or system.

We use a range of specialist facilities to simulate the conditions to which they will be exposed in service. These tests accelerate the natural ageing process, and the information generated can be assessed to estimate service life or used to identify potential weaknesses in the design of the product or system.

Our Key Facilities:

Our environmental thermal cycling chamber is sealed directly onto the system we are testing. It operates within a temperature range of ‑20°C to 70°C, in combination with controlled humidity and water spray.

The heat/spray facilities are capable of heating the surface of systems up to 70°C using an irradiant heat source. Cycling water spray simulates rainfall, subjecting the system to a thermal shock. We can accommodate relatively large-scale installations, covering horizontal as well as vertical and pitched elements.

Our freeze-thaw capabilities enable us to cycle systems between temperatures of -20°C and 50°C.

From our custom-built testing centre, we carry out the following thermal cycling and hygrothermal performance tests:

  • ETAG 004
  • ETAG 17
  • MOAT 22
  • MOAT 48
  • PAS 23 Annex D
  • Thermal shock

Thermal cycling and hygrothermal performance testing is relevant to the following product areas:

  • Brick slip
  • Cladding
  • External Thermal Insulation Composite Systems (ETICS)
  • Renders
  • Roofing (adjustable pitch)
  • Vertical, sloping or horizontal construction elements, including
  • VETURES (Veture Kits – Prefabricated Units For External Wall Insulation)

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