Siding panel assembly
A siding panel assembly includes a thermoplastic siding panel and a foam backing panel that is adhered to the thermoplastic siding panel. The siding panel assembly has a coefficient or linear thermal expansion of no more than about 2.04×10 −5 (in/in/deg F.) and a planar (e.g., flat) outward facing surface.
1. A thermoplastic siding panel assembly, comprising:
a siding panel defined by a single continuous sheet and made of thermoplastic material, the siding panel having a flat course surface that extends along a width of five to twelve inches, the siding panel comprising
a weatherable capstock layer, and
a substrate layer comprising a thermoplastic resin composition reinforced with a high aspect ratio filler such that the siding panel has a coefficient of linear thermal expansion of between 8.95×10 6 in/in/deg F. and approximately 2.33×10 −5 in/in/deg F. when tested in accordance with ASTM D696-16 procedure;
a backing panel attached to the siding panel, the backing panel defined by a foam material and having a front facing surface with a shape that substantially corresponds with a shape of a rear facing surface of the siding panel; and
an adhesive disposed between the siding panel and the backing panel and configured to adhere the backing panel to the siding panel, the adhesive configured to maintain adhesion between the backing layer and the siding panel and maintain the flat course surface of the siding panel when installed on a wall surface and exposed to a temperature of approximately 180 degrees Fahrenheit.
2. The siding panel assembly of claim 1 , wherein a side edge of the backing panel aligns with a side edge of the siding panel and so that an opposite side edge of the siding panel extends past an opposite side edge of the backing panel to define an overhang portion of the siding panel and a notch having a width of between about ½ inches and about 1¼ inches, and wherein during installation of the siding panel assembly adjacent a second siding panel assembly, the backing panel of the second siding panel assembly extends into the notch and the overhang portion of the siding panel assembly overlaps with the siding panel of the second siding panel assembly.
3. The siding panel assembly of claim 1 , wherein the thermoplastic resin composition comprises a fire retardant chemical in an amount of 0.5% to 5% of the composition, the siding panel assembly having a Class A fire rating when tested per ASTM E-84 procedure.
4. The siding panel assembly of claim 3 , wherein the fire retardant chemical is Zinc HydroxyStannate.
5. The siding panel assembly of claim 4 , wherein the fire retardant chemical is Ammonium OctaMolybdate.
6. The siding panel assembly of claim 3 , wherein the fire retardant chemical is a Molybdate containing composition including Zinc Molybdate on Talc.
7. The siding panel assembly of claim 1 , wherein the substrate layer further comprises an impact modifier in an amount of 5% to 15% of the composition and having a mean failure energy of between 35 in-lbf and 73 in-lbf.
8. The siding panel assembly of claim 7 , wherein the impact modifier is Chlorinated Polyethylene.
9. The siding panel assembly of claim 8 , wherein Chlorinated Polyethylene is used in an amount of approximately 12% of the composition.
10. The siding panel assembly of claim 7 , wherein the impact modifier is Butyl acrylate rubber core with a methyl methacrylate shell.
11. The siding panel assembly of claim 10 , wherein Butyl acrylate rubber core with a methyl methacrylate shell is used in an amount of approximately 10% of the composition.
12. The siding panel assembly of claim 7 , wherein the impact modifier is Methyl methacrylate Butadiene Styrene terpolymer.
13. The siding panel assembly of claim 7 , wherein the siding panel has a mean failure energy of between about 51 in-lbf and 73 in-lbf.
14. The siding panel assembly of claim 1 , wherein the siding panel further comprises a substantially planar nail hem at a proximal end of the siding panel, the nail hem having a lower end spaced behind the substantially planar course surface and generally aligned with a rear surface of the backing panel, the nail hem extending past an upper end of the substantially planar course surface.
15. The siding panel assembly of claim 14 , wherein the substantially planar nail hem comprises a reinforcement strip.
16. The siding panel assembly of claim 15 , wherein the reinforcement strip is embedded in the substantially planar nail hem.
17. The siding panel assembly of claim 14 , wherein the siding panel further comprises
a lock portion defined in a proximal portion of the siding panel between the substantially planar course surface and the substantially planar nail hem and comprising a tongue portion having a bulbous end, and
a buttlock portion defined in a distal portion of the siding panel and comprising a channel configured to resiliently receive the tongue portion of the lock of an adjacent siding panel assembly.
18. The siding panel assembly of claim 1 , wherein the assembled siding panel, adhesive layer and backing panel have a maximum combined thickness of between ½ inches and ¾ inches.
19. The siding panel assembly of claim 1 , wherein the single continuous sheet has a substantially uniform thickness.
20. The siding panel assembly of claim 1 , wherein the thermoplastic material comprises a thermoplastic resin reinforced with a high aspect ratio filler.
21. The siding panel assembly of claim 20 , wherein the thermoplastic resin is Polyvinyl chloride.
22. The siding panel assembly of claim 20 , wherein the high aspect ratio filler comprises fiberglass in an amount of between 5% and 20% of the composition.
23. The siding panel assembly of claim 20 , wherein the high aspect ratio filler comprises Wollastonite in an amount between 10% and 80% of the composition.
24. The siding panel assembly of claim 1 , wherein the foam material is chosen from the group consisting of polyvinyl chloride (PVC) foam, expanded polystyrene (EPS) foam, graphite poly styrene (GPS) foam, extruded polystyrene (XPS) foam, polyurethane foam, and polypropylene foam.
25. The siding panel assembly of claim 24 , wherein the foam material has a density between 0.75 lb/ft 3 and 2.10 lb/ft 3 .
26. The siding panel assembly of claim 1 , wherein the adhesive is a crosslinked polyurethane (PUR) adhesive.
27. A thermoplastic siding panel assembly, comprising:
a siding panel defined by a single continuous sheet and made of thermoplastic material, the siding panel having a flat course surface that extends along a width of five to twelve inches, the siding panel comprising
a weatherable capstock layer, and
a substrate layer comprising a polyvinyl chloride resin composition reinforced with a high aspect ratio filler such that the siding panel has a coefficient of linear thermal expansion of between 8.95×10 −6 in/in/deg F. approximately 2.33×10 −5 in/in/deg F. when tested in accordance with ASTM D696-16 procedure;
a backing panel attached to the siding panel, the backing panel defined by a foam material and having a front facing surface with a shape that substantially corresponds with a shape of a rear facing surface of the siding panel; and
an adhesive disposed between the siding panel and the backing panel and configured to adhere the backing panel to the siding panel, the adhesive configured to maintain adhesion between the backing layer and the siding panel and maintain the flat course surface of the siding panel when installed on a wall surface and exposed to a temperature ranging of approximately 180 degrees Fahrenheit.
28. The siding panel assembly of claim 27 , wherein a side edge of the backing panel aligns with a side edge of the siding panel and so that an opposite side edge of the siding panel extends past an opposite side edge of the backing panel to define an overhang portion of the siding panel and a notch having a width of between about ½ inches and about 1¼ inches, and wherein during installation of the siding panel assembly adjacent a second siding panel assembly, the backing panel of the second siding panel assembly extends into the notch and the overhang portion of the siding panel assembly overlaps with the siding panel of the second siding panel assembly.
29. The siding panel assembly of claim 27 , wherein the thermoplastic resin composition comprises a fire retardant chemical in an amount of 0.5% to 5% of the composition, the siding panel assembly having a Class A fire rating when tested per ASTM E-84 procedure.
30. The siding panel assembly of claim 27 , wherein the substrate layer further comprises an impact modifier in an amount of 5% to 15% of the composition and having a mean failure energy of between 35 in-lbf and 73 in-lbf.