Insulated siding system

1. An insulated siding panel comprising:

a foam insulation layer comprising a front face, a rear face, a first joining element defined in a first end edge, a second joining element defined in a second end edge, and a recess in the rear face along the second end edge;

a veneer layer attached to the front face of the foam insulation layer; and

an attachment member mounted to the rear face and extending beyond the first end edge;

wherein the first and second joining elements are substantially complementary in shape so that adjacent panels can engage each other, and optionally wherein adjacent panels form a seal;

wherein the attachment member comprises a main portion and a male connecting member extending approximately transversely from the main portion; and

wherein the main portion comprises one or more fastener receptacles.

2. An insulated siding panel comprising:

a foam insulation layer comprising a front face, a rear face, a first joining element defined in a first end edge, and a second joining element defined in a second end edge; and

an attachment member mounted to the rear face and extending beyond the first end edge, the attachment member comprises a main portion and a plurality of male connecting members extending approximately transversely from the main portion;

wherein the first and second joining elements are substantially complementary in shape so that adjacent panels can engage each other, and optionally wherein adjacent panels form a seal; and

wherein the foam insulation layer comprises a plurality of female connecting members, and each male connecting member extends into a female connecting member.

3. An insulated siding panel comprising:

a foam insulation layer comprising a front face, a rear face, a first joining element defined in a first end edge, and a second joining element defined in a second end edge; and

an attachment member mounted to the rear face and extending beyond the first end edge, the attachment member comprises a main portion and a plurality of male connecting members extending approximately transversely from the main portion;

wherein the first and second joining elements are substantially complementary in shape so that adjacent panels can engage each other, and optionally wherein adjacent panels form a seal; and

wherein the foam insulation layer is denser at both the first end edge and the second end edge than at a center of the foam insulation layer.

4. An insulated siding panel comprising an foam insulation layer, an attachment member, and a veneer layer;

the foam insulation layer comprising a front face, a rear face, a tongue extending from a first end edge, a groove extending into a second end edge, at least one slot defined in the rear face;

the attachment member comprising a main portion and a flange extending approximately transversely from an attachment rail;

wherein the flange of the attachment member is inserted into the at least one slot of the foam insulation layer so that the attachment member extends beyond the first end edge; and

the veneer layer being attached to the front face of the foam insulation layer.

5. The insulated siding panel of claim 4 , wherein the foam insulation layer is formed from a polystyrene, polyurethane, polyisocyanurate, polyethylene, polypropylene, or combinations thereof.

6. The insulated siding panel of claim 4 , wherein the veneer layer comprises a flexible seal extending downwards and outwards from a first front end edge of the veneer layer.

7. The insulated siding panel of claim 4 , wherein the veneer layer is formed from vinyl, polypropylene, a fiber-cement material, aluminum, steel, a wood-plastic composite, a cementitious coating, wood, or combinations thereof.

8. An insulated siding panel comprising an foam insulation layer, an attachment member, and a veneer layer;

the foam insulation layer comprising a front face, a rear face, a tongue extending from an upper edge, a groove extending into a lower edge, and at least one slot defined in the rear face;

the attachment member comprising a maim portion, an attachment rail, and a flange extending approximately transversely from the main portion;

wherein the flange of the attachment member is inserted into the at least one slot of the foam insulation layer so the attachment rail extends beyond the upper edge of the foam insulation layer; and

the veneer layer is attached to the front face of the foam insulation layer, and an upper edge of the veneer layer does not extend beyond the upper edge of the foam insulation layer.