UL LLC is the newest member of the the Window and Door Manufacturers Association (WDMA).

UL’s new 64,000-square-foot Building Envelope Performance Test lab offers a full portfolio of testing services in Northbrook, Ill., 30 minutes from Chicago. UL says it can now offer performance testing of doors, windows, curtain walls and exterior wall systems for air infiltration, water leakage, structural performance, impact and cyclic testing in the lab, on curtain wall mock-ups and in the field to evaluate installed products.

“UL is honored to become a member of WDMA,” said Wayne Breighner, engineering manager of UL’s Building Envelope Performance Testing services. “We are excited to serve the testing needs of the window and door industry with our new state of the art test facility. And now as a WDMA member, we are in a position to further serve the industries technical and educational needs.”

UL was formerly known as Underwriters Laboratories Inc.

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