Polymeric-based building materials

1. A dry-mixed polymeric-based building material, comprising:

a top end;

a bottom end, the bottom end positioned opposite the top end, and wherein the top end is spaced apart from the bottom end by a distance of 2.5 inches to 10 inches;

a left end, the left end extending from the top end to the bottom end;

a right end, the right end positioned opposite the left end, and extending from the top end to the bottom end, wherein the left end is spaced apart from the right end by a distance of 6 feet to 18 feet;

an outer surface extending from the top end to the bottom end and from the left end to the right end, wherein the outer surface defines a first horizontal plane;

an inner surface extending from the top end to the bottom end and from the left end to the right end, wherein the inner surface comprises a first contacting portion, a second contacting portion, and a recessed portion positioned between the first contacting portion and the second contacting portion, and wherein the second contacting portion has a second contacting surface that defines a second horizontal plane that is substantially parallel to the first horizontal plane of the outer surface;

wherein the polymeric-based building material comprises a dry-mixed polymeric resin and one or more additives, wherein the one or more additives comprises Wollastonite fibers, and wherein each of the Wollastonite fibers has a width and a length, with the length being greater than the width, and wherein at least a portion of the Wollastonite fibers are oriented such that the length of each of the at least a portion of the Wollastonite fibers extends in a direction that is substantially similar to the direction of extension between the right end and the left end of the polymeric-based building material.

2. The polymeric-based building material according to claim 1 , wherein a maximum thickness t r between the inner surface and the outer surface in the recessed portion is less than a maximum thickness t 2 between the inner surface and the outer surface in the second contacting portion.

3. The polymeric-based building material according to claim 2 , wherein a ratio t r :t 2 is between 1:1.1 and 1:4.

4. The polymeric-based building material according to claim 2 , wherein the maximum thickness t r between the inner surface and the outer surface in the recessed portion is between 0.1 inches and 1 inch.

5. The polymeric-based building material according to claim 1 , wherein the first contacting portion has a first contacting surface that defines a third horizontal plane, and wherein the second horizontal plane of the second contacting surface is oriented with respect to the third horizontal plane at an angle A a of between 1° and 20°.

6. The polymeric-based building material according to claim 1 , wherein the bottom end comprises a bottom surface that extends from a first bottom edge to a second bottom edge, and wherein an angle A b between the bottom surface and the second contacting surface is greater than about 90°.

7. The polymeric-based building material according to claim 1 , wherein the bottom end comprises a bottom surface that extends from the first bottom edge to a second bottom edge, and wherein an angle A c between the bottom surface and the outer surface is less than about 90°.

8. The polymeric-based building material according to claim 1 , wherein the top end comprises a top surface that extends from a first top edge to a second top edge, and wherein an angle A d between the top surface and a first contacting surface of the first contacting portion is about 90°.

9. The polymeric-based building material according to claim 1 , wherein the Wollastonite fibers are present in an amount of 20 wt. % to 60 wt. %.

10. The polymeric-based building material according to claim 9 , wherein the resin comprises polyvinyl chloride, and wherein the polyvinyl chloride is present in an amount of 30 wt. % to 70 wt. %.

11. The polymeric-based building material according to claim 1 , wherein the top end is spaced apart from the bottom end by a distance of 3 inches to 9 inches, and wherein the left end is spaced apart from the right end by a distance of 8 feet to 14 feet.

12. A dry-mixed polymeric-based siding material, comprising:

a top end;

a bottom end, the bottom end positioned opposite the top end, and wherein the top end is spaced apart from the bottom end by a distance of 2.5 inches to 10 inches;

a left end, the left end extending from the top end to the bottom end;

a right end, the right end positioned opposite the left end, and extending from the top end to the bottom end;

an outer surface extending from the top end to the bottom end and from the left end to the right end, wherein the outer surface defines a first horizontal plane; and

an inner surface extending from the top end to the bottom end and from the left end to the right end, wherein the inner surface comprises a first contacting portion, a second contacting portion, and a recessed portion positioned between the first contacting portion and the second contacting portion, wherein the second contacting portion has a second contacting surface that defines a second horizontal plane, wherein the first contacting portion has a first contacting surface that defines a third horizontal plane, wherein the second horizontal plane is oriented with respect to the third horizontal plane at an angle A a of between 1° and 20°;

wherein the polymeric-based building material comprises a dry-mixed polymeric resin and one or more additives, wherein the one or more additives comprises Wollastonite fibers, and wherein each of the Wollastonite fibers has a width and a length, with the length being greater than the width, and wherein at least a portion of the Wollastonite fibers are oriented such that the length of each of the at least a portion of the Wollastonite fibers extends in a direction that is substantially similar to the direction of extension between the right end and the left end of the polymeric-based building material.

13. The polymeric-based siding material according to claim 12 , wherein the bottom end comprises a bottom surface that extends from a first bottom edge to a second bottom edge, and wherein an angle A b between the bottom surface and the second contacting surface is greater than about 90°.

14. The polymeric-based siding material according to claim 12 , wherein the bottom end comprises a bottom surface that extends from the first bottom edge to a second bottom edge, and wherein an angle A c between the bottom surface and the outer surface is less than about 90°.

15. The polymeric-based siding material according to claim 12 , wherein a ratio of a maximum thickness t r between the inner surface and the outer surface in the recessed portion to a maximum thickness t 2 between the inner surface and the outer surface in the second contacting portion is between 1:1.1 and 1:4.

16. The polymeric-based siding material according to claim 12 , wherein the top end comprises a top surface that extends from a first top edge to a second top edge, and wherein an angle A d between the top surface and the first contacting surface is about 90°.

17. The polymeric-based siding material according to claim 12 , wherein the polymeric-based siding material comprises one or more additives, the one or more additives comprising: Wollastonite fibers present in an amount of between 20 wt. % and 60 wt. %; and a maleic anhydride grafted styrene acrylonitrile copolymer in an amount of between 0.1 wt. % and 10 wt. %.