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Building Envelope Products Field Testing

Validate the performance and compliance of building envelope systems and assemblies during and after installation.

Commercial building envelope with wind load fan


Gain confidence that installed fenestration products, curtain walling and other building envelope components, and the joint seals between them, meet the performance requirements for air and water tightness. Our field-testing experts in the UK and North America conduct on-site assessments to determine compliance with CWCT, NHBC, AAMA and other building requirement standards.

Hose or spraybar testing is conducted on at least 5% of critical joints during the first stage of installation of the building envelope system or assembly to evaluate the façade installation quality and to identify any sources of water leakage. This type of curtain wall and rainscreen testing is conducted during the first stage of installation and allows time for remediation of any water leakage problems.

Whole building air barrier/blower door testing is conducted to obtain an overall measurement of the airtightness of a whole building and adjacent spaces to the defined performance requirements resulting in increasing the performance and energy efficiency of a building.

Testing services

Service Varennes, CAN Northbrook, IL Toronto, CAN Telford, UK
Field Testing – Air        
ASTM E779, E783 X X X  
CAN/CGSB 149.10 [M86] X   X  
Field Testing - Water        
AAMA 501.1:1994 & CWCT Section 7 – dynamic water penetration (On-site also) X      
AAMA 511   X    
ASTM E1105 X X    
CWCT Section 9       X
CWCT Section 10       X
AAMA 501.2-15       X
Laboratory & Field - Guard Rail Testing        
ASTM E935 X X X  
CSA A500 X      
Field Testing – Thermographic/Thermal        
ASTM C1060, C1371 X   X  

Why UL?

Our highly specialized staff with decades of experience can test your windows and curtain wall assemblies to all the industry standards including AAMA, ASTM and CWCT, as well as to project specifications.

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