Asphalt sealcoats and asphalt shingle waste coatings in roofing materials

1. A roofing shingle comprising:

a substrate,

wherein the substrate has an exposed surface and an unexposed surface;

an asphalt shingle waste coating,

wherein the asphalt shingle waste coating covers at least a portion of the exposed surface of the substrate,

wherein the asphalt shingle waste coating comprises:

30% to 90% by weight of an asphalt based on a total weight of the asphalt shingle waste coating,

wherein the asphalt comprises a waste asphalt;

10% to 70% by weight of a limestone, granules, and impurities based on the total weight of the asphalt shingle waste coating; and

1% to 10% by weight of a viscosity modifier based on the total weight of the asphalt shingle waste coating,

wherein the viscosity modifier is different from the asphalt; and

an asphalt sealcoat,

wherein the asphalt sealcoat is located on at least a portion of the asphalt shingle waste coating,

wherein the asphalt sealcoat is substantially free of asphalt shingle waste,

wherein the asphalt sealcoat has a thickness of no greater than 50% of a thickness of the asphalt shingle waste coating.

2. The roofing shingle of claim 1 , wherein the asphalt shingle waste coating directly contacts the exposed surface of the substrate.

3. The roofing shingle of claim 1 , wherein the asphalt shingle waste coating covers 50% to 99% of the exposed surface of the substrate.

4. The roofing shingle of claim 1 , wherein the asphalt shingle waste coating covers an entire exposed surface of the substrate.

5. The roofing shingle of claim 1 , wherein the asphalt sealcoat directly contacts the asphalt shingle waste coating.

6. The roofing shingle of claim 1 , wherein the asphalt sealcoat covers 50% to 99% of the asphalt shingle waste coating.

7. The roofing shingle of claim 1 , wherein the asphalt sealcoat covers an entire surface of the asphalt shingle waste coating.

8. The roofing shingle of claim 1 , wherein the asphalt sealcoat is free of asphalt shingle waste.

9. The roofing shingle of claim 1 , wherein the thickness of the asphalt sealcoat is 5% to 50% of the thickness of the asphalt shingle waste coating.

10. The roofing shingle of claim 1 , wherein the thickness of the asphalt sealcoat is 5% to 40% of a thickness of the asphalt shingle waste coating.

11. The roofing shingle of claim 1 , wherein the thickness of the asphalt sealcoat is 5% to 30% of a thickness of the asphalt shingle waste coating.

12. The roofing shingle of claim 1 , wherein the thickness of the asphalt sealcoat is 5% to 20% of a thickness of the asphalt shingle waste coating.

13. The roofing shingle of claim 1 ,

wherein the thickness of the asphalt sealcoat is 0.1 mils to 100 mils;

wherein the thickness of the asphalt shingle waste coating is 2 mils to 200 mils.

14. The roofing shingle of claim 1 , wherein the substrate comprises at least one of a fiberglass mat, a polyester mat, or any combination thereof.

15. A roofing system comprising:

a roofing substrate,

wherein the roofing substrate comprises at least one of an underlayment, a roof deck, or any combination thereof; and

a plurality of roofing shingles located on the roofing substrate, each of the plurality of roofing shingles comprising:

a substrate,

wherein the substrate comprises an exposed surface and an unexposed surface;

an asphalt shingle waste coating,

wherein the asphalt shingle waste coating covers at least a portion of the exposed surface of the substrate,

wherein the asphalt shingle waste coating comprises:

30% to 90% by weight of an asphalt based on a total weight of the asphalt shingle waste coating,

 wherein the asphalt comprises consists of a waste asphalt;

10% to 70% by weight of a limestone, granules, and impurities based on the total weight of the asphalt shingle waste coating; and

1% to 10% by weight of a viscosity modifier based on the total weight of the asphalt shingle waste coating,

 wherein the viscosity modifier is different from the asphalt;

an asphalt sealcoat,

wherein the asphalt sealcoat is located on at least a portion of the asphalt shingle waste coating,

wherein the asphalt sealcoat is substantially free of asphalt shingle waste,

wherein the asphalt sealcoat has a thickness of no greater than 50% of a thickness of the asphalt shingle waste coating.

16. The roofing system of claim 15 , wherein each of the plurality of roofing shingles directly contacts the roofing substrate.

17. The roofing system of claim 15 , wherein the asphalt shingle waste coating directly contacts the exposed surface of the substrate.

18. The roofing system of claim 15 , wherein the asphalt shingle waste coating covers 50% to 99% of the exposed surface of the substrate.

19. The roofing system of claim 15 , wherein the asphalt shingle waste coating covers an entire exposed surface of the substrate.

20. The roofing system of claim 15 , wherein the asphalt sealcoat directly contacts the asphalt shingle waste coating.

21. The roofing system of claim 15 , wherein the asphalt sealcoat covers 50% to 99% of the asphalt shingle waste coating.

22. The roofing system of claim 15 , wherein the asphalt sealcoat covers an entire surface of the asphalt shingle waste coating.

23. The roofing system of claim 15 , wherein the asphalt sealcoat is free of asphalt shingle waste.

24. The roofing system of claim 15 , wherein the thickness of the asphalt sealcoat is 5% to 50% of the thickness of the asphalt shingle waste coating.

25. The roofing system of claim 15 , wherein the thickness of the asphalt sealcoat is 5% to 40% of a thickness of the asphalt shingle waste coating.

26. The roofing system of claim 15 , wherein the thickness of the asphalt sealcoat is 5% to 30% of a thickness of the asphalt shingle waste coating.

27. The roofing system of claim 15 ,

wherein the thickness of the asphalt sealcoat is 0.1 mils to 100 mils;

wherein the thickness of the asphalt shingle waste coating is 2 mils to 200 mils.

28. The roofing system of claim 15 , wherein the substrate comprises at least one of a fiberglass mat, a polyester mat, or any combination thereof.