The roof system of the Norick Arena was analyzed for gravity loads. The dead load of the precast waffle deck section with its original built-up roofing was determined to be approximately 56 psf.
There are currently two types of roofing materials on the roof. There is an older built-up membrane and asphalt system covered by a newer sprayed-foam system. This sprayed-foam system is the principal weather-proofing. The thickness of the foam was measured to be about 4 in. as measured at select probe openings. At the center of the roof, the foam has been built up to about 6 to 10 in. to provide a slope for drainage. The average weight of this existing foam roofing material was determined to be 3 psf.
The snow load for the Norick Arena roof as determined from ASCE 7 (ASCE 2002) is 7 psf.