Asphalt shingle waste-filled polymer-modified asphalt coatings and related systems and related methods
Roofing shingles are provided herein. A roofing shingle comprises a substrate, an asphalt filled coating on the substrate, and granules on the asphalt filled coating. The asphalt filled coating comprises an asphalt, a polymer modifier, at least 50% by weight of an asphalt shingle waste based on a total weight of the asphalt filled coating, and 40% by weight or less of at least one filler based on the total weight of the asphalt coating. Roofing systems and related methods are also provided herein.
1 . A roofing shingle comprising:
a substrate;
an asphalt filled coating on the substrate,
wherein the asphalt filled coating comprises:
an asphalt;
a polymer modifier;
50% to 95% by weight of an asphalt shingle waste based on a total weight of the asphalt filled coating; and
5% by weight or less of at least one virgin filler based on the total weight of the asphalt filled coating; and
granules on the asphalt filled coating.
2 . The roofing shingle of claim 1 , wherein the asphalt filled coating comprises:
1% to 49% by weight of the asphalt based on the total weight of the asphalt filled coating; and
1% to 20% by weight of the polymer modifier based on the total weight of the asphalt filled coating.
3 . The roofing shingle of claim 1 , wherein the asphalt filled coating comprises:
5% to 50% by weight of the asphalt and the polymer modifier based on the total weight of the asphalt filled coating.
4 . The roofing shingle of claim 1 , wherein the asphalt filled coating comprises:
50% to 99% by weight of the asphalt based on a total weight of the asphalt and the polymer modifier; and
1% to 50% by weight of the polymer modifier based on the total weight of the asphalt and the polymer modifier.
5 . The roofing shingle of claim 1 , wherein the asphalt filled coating comprises:
80% to 99% by weight of the asphalt based on a total weight of the asphalt and the polymer modifier; and
1% to 20% by weight of the polymer modifier based on the total weight of the asphalt and the polymer modifier.
6 . The roofing shingle of claim 1 , wherein the asphalt comprises an oxidized asphalt.
7 . The roofing shingle of claim 1 , wherein the polymer modifier comprises at least one of a poly(styrene-butadiene-styrene) (SBS), a poly(styrene-ethylene/butylene-styrene) (SEBS), a poly(styrene-isoprene-styrene) (SIS), an atactic polypropylene (APP), an isotactic polypropylene (IPP), a low-density polyethylene (LDPE), medium-density polyethylene (MDPE), high-density polyethylene (HDPE), a polypropylene, an acrylic, a polyvinyl siloxane (PVS), any copolymer thereof, or any combination thereof.
8 . The roofing shingle of claim 1 , wherein the asphalt shingle waste comprises:
5% to 50% by weight of a waste asphalt based on a total weight of the asphalt shingle waste; and
50% to 95% by weight of a limestone, granules, or impurities based on the total weight of the asphalt shingle waste.
9 . The roofing shingle of claim 1 , wherein the asphalt filled coating comprises 1% to 5% by weight of the at least one virgin filler based on the total weight of the asphalt filled coating.
10 . The roofing shingle of claim 1 , wherein the asphalt filled coating is free of the at least one virgin filler.
11 . The roofing shingle of claim 1 , wherein the roofing shingle exhibits, when tested according to a three-point bending test at a constant rate of 100 microns per second and a temperature of 20° C., an axial force of 25 N or less at a displacement of 0.1 mm to 10 mm.
12 . The roofing shingle of claim 1 , wherein the roofing shingle exhibits, when tested according to a three-point bending test at a constant rate of 100 microns per second and a temperature of 20° C., an axial force of 2 N to 25 N at a displacement of 0.1 mm to 10 mm.
13 . The roofing shingle of claim 1 , wherein the asphalt filled coating has a penetration point of 15 dmm to 45 dmm as measured according to ASTM D-5.
14 . The roofing shingle of claim 1 , wherein the asphalt filled coating has a softening point of 190° F. to 250° F. as measured according to ASTM D-3461.
15 . A roofing system comprising:
a roofing substrate; and
at least one roofing shingle,
wherein the at least one roofing shingle is located on the roofing substrate,
wherein the at least one roofing shingle comprises:
a substrate;
an asphalt filled coating on the substrate,
wherein the asphalt filled coating comprises:
an asphalt;
a polymer modifier;
50% to 95% by weight of an asphalt shingle waste based on a total weight of the asphalt filled coating; and
5% by weight or less of at least one virgin filler based on the total weight of the asphalt filled coating; and
granules on the asphalt filled coating.
16 . The roofing system of claim 15 , wherein the roofing substrate comprises at least one of a plywood substrate, a glass substrate, a cellulosic substrate, a roof shingle, a mat, a fabric, a glass mat, a fiberglass mat, an underlayment, a roofing membrane, a roof deck, a photovoltaic (PV) panel, a modified bitumen (MODBIT) substrate, a roll good, a polyisocyanurate (ISO) foam board, a cover board, a pipe, a base sheet, a chimney, a wax paper, or any combination thereof.
17 . The roofing system of claim 15 , wherein the at least one roofing shingle directly contacts the roofing substrate.
18 . The roofing system of claim 15 , wherein the asphalt filled coating comprises:
1% to 49% by weight of the asphalt based on the total weight of the asphalt filled coating; and
1% to 20% by weight of the polymer modifier based on the total weight of the asphalt filled coating.
19 . The roofing system of claim 15 , wherein the asphalt filled coating is substantially free of the at least one virgin filler.