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Northbrook Fenestration Lab

Building Envelope

Achieve optimal performance for building envelope components and systems with testing, certification, commissioning and advisory services from UL’s built environment experts.

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.

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