An average pulp and paper mill will have roofs that total over a million square feet and some can comprise more than 100 separate roof sections—many with unique membrane types, ages, conditions and environments. In addition to their large number, one of the things that makes managing the fleet of roofs on a paper mill so unique and difficult is their variability regarding occupancy and sensitivity to water. For example, water entering through the roof in the storeroom can be a minor nuisance, while the same condition in a motor control area can be disruptive and highly hazardous.
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