CPC E04D 1/30 (2013.01) [E04D 1/22 (2013.01); E04D 13/002 (2013.01); E04D 2001/308 (2013.01)] | 20 Claims |
1. A roofing system comprising:
a steep slope roof substrate comprising:
a first region; and
a second region downslope of the first region;
a plurality of shingles above the first region of the steep slope roof substrate;
a treatment material above the second region of the steep slope roof substrate,
wherein the treatment material is configured to receive runoff from the plurality of shingles on the first region of the steep slope roof substrate,
wherein the runoff comprises:
water; and
at least one other component;
wherein the treatment material is configured to reduce a concentration of the at least one other component in the runoff,
wherein the treatment material comprises activated carbon; and
a water barrier material above the second region of the steep slope roof substrate so as to form a water barrier layer,
wherein the treatment material is above the water barrier layer.
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