The Simulated Impact of Climate on the Drying Times of a Wetted Low-Slope Roof System

Abstract

The 1991 National Roofing Contractors Association Annual Roof ing Survey predicts increases in recover, the reroofing practice of installing a new roof over an existing failed roof. For 1992, the survey estimates that $5¼ billion will be spent on recover. Market trends suggest that recover will become an increasingly more popular option in reroofing. The most controversial aspect of recover pertains to the presence of water in the failed roof. For recover to be a viable reroofing option, this water must have a means of escaping the roof system; entrapped water in the roof would lead to the eventual mechanical failure of the deck and fasteners The rate that water can be driven from a roof system will dictate whether recover can be con sidered as a reroofing option for that system

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References

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