CPC E04D 11/02 (2013.01) [B32B 3/30 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); E04D 12/002 (2013.01); E04H 9/14 (2013.01); B32B 2419/06 (2013.01)] | 20 Claims |
1. A roofing system, comprising:
a deck;
a substrate positioned over the deck, the substrate including:
an upper surface exposed to an outer environment; and
a plurality of surface features positioned across the upper surface;
wherein the substrate comprises a roofing membrane;
wherein the surface features are exposed to the outer environment and are arranged across the upper surface so as to intercept an object striking the substrate;
wherein each of the surface features comprises an impact resistant material and is configured to reduce an energy of an impact of the object striking the substrate;
wherein the surface features comprise hemispherical, pyramid, or triangular shaped structures, or combinations thereof, and have a height of ¼ inches to 6 inches above the upper surface of the substrate; and
an underlayment positioned between the substrate and the deck.
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