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Scientific evaluation of existing roofing systems

Abstract
The scientific method is that of comparing two terms: "cause" and "effect." We study cause and predict effect; from effect, we can determine cause. In roof-failure analyses, we must remember that the roof starts to wear out the moment it's completed. The cuase of failure of a 25-year-old roof may simply be age, and may be simply deduced. The study of a five-year-old roof, prematurely failed, is much more complex. To get the right answers, we must ask the right questions. These questions are derived from our study of effects (defects) noted in the examination of the entire building system. The proper identification of casual factors of premature roof failures is vital if we wish to avoid recurring failure. Simply put, we must identify the problem and the cause of that problem for lasting results.
Date
0/1979
Author(s)
B Williams Jr
Page(s)
26-29
Keyword(s)
roof failure analysis; analysis; cause; effect;



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