Treading lightly

Roofing workers reroof West Virginia University's domed coliseum

Morgantown-based West Virginia University uses its coliseum in a variety of ways. The domed building houses the School of Physical Education, and its 14,000-seat arena is used for the university's basketball teams, gymnastics teams, wrestling teams, concerts, commencement and more. The 35-year-old structure has seen a wide spectrum of events in its lifetime.

However, such experiences took their toll on the building's dome roof system. Although the original spray polyurethane foam (SPF) roof system performed well, its original urethane-coated surface had been recoated, possibly more than once, with a silicone-based coating. As airborne dirt accumulated, the roof system displayed a splotchy appearance.

The university decided the original roof system would be removed and replaced with a new SPF roof system.

"SPF was chosen based on relative ease of application," says Robert Dye, roof consultant for RTE Technologies Inc., Overland Park, Kan. "It offered reduced material handling compared with board roof insulation, adhesion to the concrete deck and conformance with the curved deck."

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