A crush resistant seamless roofing system is formed by a layer of adjacent
panels having loose joints filled by expanding rising foam adhesive,
which is trimmed to remove excess foam adhesive above a top plane of the
roofing system. The roofing system thus formed is covered by a fabric
layer and a coating. Further, the seamless roofing system is combined
with a base layer, located beneath the panels, the base layer comprising
bonded panels of a lightweight fireproofing material, resistant to
moisture and foot traffic.