US 12,305,396 B1
Reclaimed roofing granules and related methods
Jonathon MacBride, Greencastle, PA (US); David Kragten, Williamsport, MD (US); Daniel Rardon, Greencastle, PA (US); Justin Dunlap, Waynesboro, PA (US); Jared Horner, Hagerstown, MD (US); and Derek Small, Mercersburg, PA (US)
Assigned to Specialty Granules Investments LLC, Parsippany, NJ (US)
Filed by Specialty Granules Investments LLC, Parsippany, NJ (US)
Filed on Oct. 27, 2023, as Appl. No. 18/384,594.
Claims priority of provisional application 63/519,111, filed on Aug. 11, 2023.
Claims priority of provisional application 63/498,930, filed on Apr. 28, 2023.
Claims priority of provisional application 63/482,622, filed on Feb. 1, 2023.
Claims priority of provisional application 63/419,935, filed on Oct. 27, 2022.
Int. Cl. E04D 7/00 (2006.01); C08L 95/00 (2006.01); E04D 11/02 (2006.01)
CPC E04D 11/02 (2013.01) [C08L 95/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A roofing granule comprising:
a sterilized roofing shingle waste core,
wherein the sterilized roofing shingle waste core comprises:
a sterilized base particle; and
at least 0.5% by weight of a sterilized asphalt residue based on a total weight of the sterilized roofing shingle waste core;
wherein the sterilized roofing shingle waste core, when tested according to an organism growth testing method, does not exhibit a green growth at an interface between the sterilized roofing shingle waste core and a testing solution after a duration of one month; and
a colored coating,
wherein the sterilized asphalt residue is located between the sterilized base particle and the colored coating;
wherein the colored coating covers at least a portion of the sterilized asphalt residue.