Skip to content

Weather Resistance & Durability

Weather Resistance & Durability: Environmental Testing of Construction Products

We know how important it is to consider all aspects of the impact of the working environment on your products. We carry out testing to find out whether products and systems are fit for purpose, and should failures occur, why they have happened.

You want to be sure that your cladding materials, such as, renders, brickwork, concrete, and modern composite cladding, can perform for its intended life cycle, particularly if the requirement of design life is over 60 years. We can subject samples to accelerated weathering and make assessments about their structural integrity and their aesthetics.

Weather Resistance


Wind-driven rain penetration can be a particular problem when looking at modular construction, timber frame, or lightweight steel frame buildings, as water ingress can cause deterioration of the structural frame and hence affect the load-bearing capacity of the building. Our experts carry out tests under dynamic conditions which represent different levels of exposure. This allows the system to be categorised for use.

Hygrothermal performance testing

Lucideon has the UK's largest selection of hygrothermal testing chambers, performing Hygrothermal Performance Testing of External Thermal Insulation Composite Systems (ETICS) to EADs 040083-00-0404 and 040287-00-0404, CWCT Standards, M.O.A.T. 22 & Customised Programs.

The external walls of buildings are exposed to a wide range of weather conditions, including wetting, drying, heating, cooling, freezing, and thawing. To ensure ETICS perform satisfactorily, and to predict their expected design life, sample panels must be subjected to accelerated testing.

At Lucideon, we have the capability to provide complete performance testing for ETICS, renders, cement particle boards, glass reinforced plastic (GRP), MgO boards, brick slip systems, and cladding.


Our rigs, each with a double aperture capable of accommodating large-scale panels (10 walls in total, up to 7m2), can provide rapid turnaround times, resulting in quicker product development and certification.

M.O.A.T. 22 and EAD 040083-00-0404 test programs are aimed at renders, however, the analysis can also be applied to other materials and finishes, to the following standards:

UKCA-CE marking

Testing to EAD 040083-00-0404 is necessary to obtain UKCA or CE marking for render products. Lucideon is accredited to ISO 17025 and can provide testing support to certify products for UKCA and CE marking purposes.

Product guarantees

The M.O.A.T. 22 test program can be combined with structural strength and wind loading tests to predict the expected lifetime of a render product, thus allowing manufacturers to guarantee the lifetime of their products. At Lucideon, we have the capabilities to conduct both static and dynamic wind load testing.

Dynamic Wind Loading and Uplift Testing

We offer dynamic wind loading and wind uplift tests for walls (including external wall insulation (EWI) systems), façades, roofing membranes, insulation, rainscreens, pitched and flat roofing, solar panels, and veture kits.


Wind Loading Test Rig for Walls

  • Capability to apply negative and positive wind gusts greater than any UK requirement
  • A 6.2m high by 3.6m wide chamber which facilitates two-storey height testing with a horizontal movement joint
  • Simulation of wind-driven rain via a purpose-built water spray system
  • A programmable control mechanism for standard or customised programs
  • The ability to measure multiple displacement readings on the system

Wind Uplift Test Rig for Roofs

  • Capacity to test samples up to 4m X 3m (maximum)
  • Adjustability to house various roofing systems and depths of construction
  • Windows to view tests in progress
  • Climate controlled conditions

Products or systems can be tested to the following standards:

Roofing standards

  • EAD 030350-00-0402 (former ETAG 005) – Liquid Applied Waterproofing Kits
  • EAD 030351-00-0402 (former ETAG 006) – Systems of Mechanically Fastened Flexible Roof Waterproofing Membranes
  • BS EN 16002:2018 - Flexible sheets for waterproofing. Determination of the resistance to wind load of mechanically fastened flexible sheets for roof waterproofing
  • M.O.A.T. 64,65,66 – UEAtc Technical Guide for the assessment of roof waterproofing systems
  • BS EN 5534 – Slating and Tiling for Pitched Roofs and Vertical Cladding
  • Customised programs


Standards for walls

  • EAD 040914-00-0404 - Veture Kits
  • EAD 090019-00-0404 - Kits for external wall cladding of mineral boards with renderings applied in situ
  • EAD 090020-00-0404 - Kits for external wall claddings made of agglomerated stone
  • EAD 090058-00-0404 - Ventilated external wall cladding kit
  • EAD 040083-00-0404 - ETICS 1 with Rendering
  • EAD 040287-00-0404 - ETICS 2 with Panels
  • EAD 090062-00-0404 - Cladding Kits
  • CWCT Standards – Wind Serviceability, Wind Safety, Water Penetration, and Impact Tests
  • BS EN 5534 – Slating and Tiling for Pitched Roofs and Vertical Cladding
  • BS EN 13830 – Curtain Walling
  • Customised programs

Frost Resistance Testing

Lucideon has developed accelerated freeze/thaw tests for over 45 years. These have been accepted as industry standards and have proved to be equally useful for testing all kinds of materials and assessing performance in severe freeze/thaw conditions.

We are UKAS (United Kingdom Accreditation Service) accredited for masonry walling, roof tiles, and pavers. The tests are accepted by BSI and form the basis for the European standards for frost resistance of masonry units, pavers and roofing tiles made from clay, concrete, natural stone, or reconstituted stone.

Severe Exposure

The essential feature of the masonry unit tests is that they are unidirectional. The freezing and thawing cycles attack only one side or face of the samples which, together with the high level of saturation and rapid rate of freezing, simulates conditions in the most severe environments likely to be encountered in the UK. Consequently, if any failure occurs during a test, it is of the same type as that seen in real situations.

The test method for natural stone and clay or concrete roofing tiles is omnidirectional, resulting in freezing action on all surfaces of the samples being tested.

Case Studies

External Wall Insulation System
Lucideon Develops Customised Testing Program for Mauer's Novel EWI System

One of Mauer’s unique EWI systems achieved certification through the development of a customized testing program

Safe Confinement at Chernobyl Nuclear Power Plant

Testing of unique cladding system and its components

Hammersmith Flyover
Lucideon Validates the Performance of the UHPFRC for Fryssinet and the Restoration of the Hammersmith Flyover

Testing provided evidence that the strength requirements of the UHPFRC were met at each stage of the flyover restoration process

Lucideon Helps Hemsec Gain Composite Panel ETA Accreditation and CE Certification

Testing enabled Hemsec to attain ETA accreditation and CE certification for their structural insulated panels