Insulated structural members for insulated panels and a method of making same
View Patent ↗A hybrid structural member for an insulated structural panel includes a core member surrounded on at least two sides by a high-density structural foam. The hybrid structural member may be manufactured by placing a core member in a cavity of an injection mold and surrounding the core member by insulating foam on at least two sides. The core member may be held in place by screws, posts, pins, a vacuum, or other suitable means.
1. An insulated veneer panel system, comprising:
an insulated panel formed of closed cell polyurethane foam disposed between sheathing material on first and second faces of the insulated panel, the insulated panel defined by first and second sides;
an elongated hybrid structural member, formed of an elongated core member and a high density insulating material, disposed against at least one of the first and second sides of the insulated panel;
the core member having a cross section defined by at least a length and a width, wherein the length and the width define a surface area at each end of the core member;
wherein the high density insulating material of the elongated structural member substantially covers at least two surfaces defined by the length, width, and surface area at each end of the core member, thereby forming a hybrid structural member.
2. The hybrid structural member of claim 1 , wherein the core member is comprised of dimensional lumber.
3. The hybrid structural member of claim 1 , wherein the core member is comprised of a metal.
4. The hybrid structural member of claim 1 , wherein the core member is comprised of gypsum.
5. The hybrid structural member of claim 1 , wherein the core member is comprised of plywood.
6. The hybrid structural member of claim 1 , wherein the core member is comprised of a rigid plastic.
7. The hybrid structural member of claim 1 , wherein the core member is comprised of a ceramic.
8. The hybrid structural member of claim 1 , wherein the core member is magnesium oxide.
9. The hybrid structural member of claim 1 , wherein the high density insulating material comprises polyurethane.
10. The hybrid structural member of claim 1 , further comprising a non-butyl gasket integrally formed at an exterior surface of the hybrid structural member.
11. The hybrid structural member of claim 1 , wherein the high density insulating material comprises one of polyurethane or polyisocyanurate.
12. The hybrid structural member of claim 11 , wherein the density of the high density insulating material is at least 2.2 lb/ft 3 .
13. A method for manufacturing a hybrid structural member for use in an insulated veneer panel system, comprising:
positioning an elongated core member within a cavity of a mold, wherein the mold is configured to be closed on all sides around the core member, and wherein the mold cavity defines a predetermined cross section of the hybrid structural member, the cross section having a defined length and width;
surrounding at least two sides of the core member with an expanding high density insulating material, wherein the high density insulating material expands to fill the mold cavity in the predetermined shape defined by the mold cavity, thereby forming the hybrid structural member; wherein
the mold cavity defines at least one of a male and a female cross section of the hybrid structural member to enable an interlocked fit between first and second ones of the insulated veneer panels having a hybrid structural member disposed along at least one side thereof.
14. The method of claim 13 , wherein comprising the step of:
positioning the core member within the mold cavity by attaching the core member to an interior surface of the mold cavity.
15. The method of claim 14 , wherein attaching the core member to a lid of the mold cavity.
16. The method of claim 14 , wherein comprising the step of:
holding the core member in place by a vacuum.
17. The method of claim 14 , wherein comprising the step of:
holding the core member in place by screws.
18. The method of claim 14 , wherein comprising the step of:
holding the core member in place by pins.
19. The method of claim 14 , wherein comprising the step of:
holding the core member in place by rails disposed on the interior surface of the mold cavity.
20. The method of claim 19 , wherein the rails are disposed on the interior surface of the mold cavity opposite the lid.
21. The method of claim 13 , wherein the high density insulating material comprises a density of at least 1.8 lb/ft 3 .
22. The method of claim 13 , wherein the mold cavity further comprises sealing trenches, and wherein the expanding high-density insulating material comprises a first expanding high-density insulating material and a second expanding high-density insulating material, and wherein the first expanding high-density insulating material is first disposed in the sealing trenches, and wherein thereafter the second expanding high-density insulating material is disposed in the remainder of the mold cavity, and wherein the first expanding high-density insulating material has a lower density than the second expanding high-density insulating material.