Attachment member for insulation panel

1. An attachment member comprising:

a main portion having a forward edge and a rear edge;

a nailing hem extending transversely from the rear edge of the main portion in an upper direction, the nailing hem having a base and an apex, the base including an arched portion extending in a forward direction; and

a first lower leg extending transversely from a center location of the main portion in a lower direction.

2. The attachment member of claim 1 , wherein the apex of the nailing hem is rounded and includes an end strip.

3. The attachment member of claim 1 , wherein the attachment member has a plurality of lower legs extending transversely from the main portion in the lower direction, wherein the plurality includes the first lower leg.

4. The attachment member of claim 3 , wherein the plurality of lower legs have the same length.

5. The attachment member of claim 3 , wherein the plurality of lower legs has more than one length.

6. The attachment member of claim 5 , wherein the plurality of lower legs are arranged so that for each pair of adjacent lower legs, the lower leg closer to the forward edge of the main portion is shorter than the other lower leg.

7. The attachment member of claim 5 , wherein the plurality of lower legs are arranged so that the lower leg closest to the forward edge of the main portion and the lower leg closest to the rear edge of the main portion are longer than the other lower legs.

8. The attachment member of claim 5 , wherein the plurality of lower legs are arranged so that for each pair of adjacent lower legs, the lower leg closer to the center of the main portion is longer than the other lower leg.

9. The attachment member of claim 1 , further comprising a forward wall and a lip, the forward wall extending from the forward edge of the main portion in the upper direction, wherein the forward wall has a first end and a second end, the second end of the forward wall is connected to the main portion, and the lip extends transversely from the first end of the forward wall in the forward direction away from the nailing hem.

10. The attachment member of claim 1 , further comprising at least one flange extending transversely from the first lower leg.

11. The attachment member of claim 10 , wherein the at least one flange has a stop surface and an angled surface that extends away from the main portion.

12. An attachment member comprising:

a main portion having a forward edge and a rear edge;

a nailing hem extending transversely from the rear edge of the main portion in an upper direction, the nailing hem having a base and an apex, the base including an arched portion extending in a forward direction;

at least one lower leg extending transversely from the main portion in a lower direction; and

a side leg extending transversely from the nailing hem in a backward direction.

13. The attachment member of claim 12 , wherein the side leg further comprises a flange extending transversely from the side leg.

14. An attachment member comprising:

a main portion having a forward edge and a rear edge;

a nailing hem extending transversely from the rear edge of the main portion in an upper direction, the nailing hem having a base and an apex, the base including an arched portion extending in a forward direction;

at least one lower leg extending transversely from the main portion in a lower direction; and

a primary flange and a secondary flange each extending transversely from the at least one lower leg, wherein the primary flange is located along the at least one lower leg further from the main portion than the secondary flange, and wherein the secondary flange is longer than the primary flange.

15. An insulation panel comprising:

a foam insulating layer comprising a front face, a rear face, a first end edge, and a second end edge that define a body of the foam insulating layer; and

an attachment member comprising:

a main portion having a forward edge and a rear edge;

a nailing hem extending transversely from the rear edge of the main portion in an upper direction, the nailing hem having a base and an apex, the base including an arched portion extending in a forward direction; and

at least one lower leg extending transversely from the main portion in a lower direction at a point between the forward edge and the rear edge;

wherein the at least one lower leg of the attachment member extends into the body of the foam insulating layer along the first end edge, the attachment member and the first end edge cooperating to be complementary in shape with the second end edge such that adjacent panels can engage each other.

16. The insulation panel of claim 15 , further comprising a veneer panel attached to the front face of the foam insulating layer, the veneer panel having a first end edge at the same end of the insulation panel as the first end edge of the foam insulating layer and a second end edge.

17. The insulation panel of claim 15 , wherein the foam insulating layer includes an upper wall extending from the first end edge along the rear face in the upper direction.

18. The insulation panel of claim 17 , wherein the upper wall has an upper edge extending to at least the apex of the nailing hem, a front face, and a rear face.

19. The insulation panel of claim 17 , wherein the foam insulating layer further comprises a recess in the rear face along the second end edge, the recess being shaped to accommodate the nailing hem and the upper wall.

20. The insulation panel of claim 15 , wherein the front face of the foam insulating layer has a contour formed from a central lateral ridge, a central depressed region extending downwards from the central lateral ridge, an outwardly extending angled region connected to the central depressed region, and a planar region connected to the outwardly extending angled region.