| http://www.w3.org/ns/prov#value | - FIGS. 1 and 1A show a roofing system 10 including a number of rafters or beams 12, a roof substrate 14 (e.g., tarpaper, plywood or other decking material, insulation, and the like) supported on the rafters 12, flashing 16 extending across the substrate 14 (i.e., placed immediately adjacent an upper surface of the substrate 14 or supported on one or more intermediate layers of roofing or sealing ma
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