Recently, model building codes have enacted restrictions
regarding the use of aggregate as a top surfacing for low-slope
membrane roof assemblies. Such restrictions may affect the
installation of low-slope membrane roof assemblies.
Following is the rationale for these restrictions and a review
of the specific restrictions.
Since the early 1990s, model building codes have taken strides
to strengthen buildings' resistances to high-wind pressures, such
as those experienced during hurricanes. At the same time, insurance
industry representatives and some wind experts also have lobbied
for code restrictions intended to limit wind-borne debris...
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