Building Envelope

We understand the science behind the building envelope. Our testing services help ensure that the performance of building envelope products, systems and structures meet regulatory demands and protect brand value. Our offerings include building envelope testing and certification, fire testing and certification, building forensic services and building system commissioning services.

Building Envelope Assessments

Our Building Envelope Assessment services guides building owners, managers and insurers in minimizing the impact of building envelope failures.

Building Envelope Certification

UL is an accredited comprehensive service provider for testing and certification of building envelope products.

Building Envelope Commissioning Services

UL guides building owners, managers and insurers in building planning and evaluates and verifies the performance of installed envelope systems.

Building Envelope Component and Systems Testing

We provide regulatory training and advisory services and testing, Verification, inspection and certification solutions for your fenestration products to help you get compliant products to the market quickly.

Photo of a building mock up sample shot from below

Building Envelope Performance Mock-up Testing

Testing mock-ups of façades can save time and costs in construction by identifying façade performance issues prior to construction.

Commercial building envelope with wind load fan

Building Envelope Products Field Testing

Meet the performance requirements for air and water tightness in building envelope components.

Building envelope - skyscraper building with many glass windows against a sunny blue sky

Building Envelope Services

With a foundation in building science, we provide a comprehensive array of services to assess and validate the design and performance of building envelope components, products and systems.

Data Acceptance Program (DAP)

Our Data Acceptance Program (DAP) provides a means for UL to accept externally generated test data in support of UL Mark certification. While we maintain extensive test facilities, customers can utilize their own or third-party facilities for product testing via this program.

A lock cylinder being cycled to determine durability of the mechanism

Door Hardware Testing

Let our hardware testing services and knowledge help you get your product to market faster by confirming compliance to the needed regulatory approvals.

Exterior Wall System Testing and Certification

You can leverage our expertise to help get your products to market quickly. We provide training, advisory, testing, Verification, inspection and certification solutions for exterior wall assemblies.

Fire Door Inspection Service

Our fire door inspection services helps property owners and code authorities confirm that existing fire doors remain code compliant and operational. Fire doors are an integral part of a building’s safety system and must be regularly inspected and tested.

A fire resistant wall being tested in a facility.

Fire Resistance Products, Systems and Designs

We provide third-party certification that your fire resistant systems and assemblies meet regulatory and market requirements, providing confidence to code enforcement officials and buyers that your products are compliant.