Enclosure members joined by hinged I-beam to fold flat

1. Foldable enclosure members for a building structure, comprising:

(a) a first planar laminate having a first generally linear edge;

(b) a second planar laminate having a second generally linear edge;

the first and second planar laminates each comprising a first facing layer; a layer of foam having a first face and a second opposing face; and a second facing layer; the first facing layer fastened to the first face of the layer of foam, and the second facing layer fastened to the second opposing face of the layer of foam;

(c) a perimeter structure comprising:

(1) a first perimeter section comprising a first elongate flange surface joined to a first elongate web surface at a first junction, a second elongate flange surface joined to the first elongate web surface at a second junction, the first elongate flange surface and the second elongate flange surface being spaced-apart by a first distance, the first elongate web surface, the first elongate flange surface and the second elongate flange surface generally forming a C-channel shape;

(2) a second perimeter section comprising a third elongate flange surface joined to a second elongate web surface at a third junction, a fourth elongate flange surface joined to the second elongate web surface at a fourth junction, the third elongate flange surface and the fourth elongate flange surface being spaced-apart by a second distance, the second elongate web surface, the third elongate flange surface and the fourth elongate flange surface generally forming a C-channel shape;

(3) the first perimeter section secured to the first generally linear edge of the first planar laminate, with the first distance spacing apart the first and second elongate flange surfaces adapted to receive between them at least the generally linear edge of the layer of foam of the first planar laminate;

(4) the second perimeter section secured to the second generally linear edge of the second planar laminate, with the second distance spacing apart the third and fourth elongate flange surfaces adapted to receive between them at least the generally linear edge of the layer of foam of the second planar laminate;

(d) the first perimeter section having a first series of hinge knuckles in proximity to the first junction, and a second series of hinge knuckles in proximity to the second junction;

(e) the second perimeter section having a third series of hinge knuckles in proximity to the third junction, and a fourth series of hinge knuckles in proximity to the fourth junction;

(f) the first series of hinge knuckles being paired in an abutting relationship with the third series of hinge knuckles, to define a plurality of gaps, each gap defined by the space between each adjacent abutting pair of the first series of hinge knuckles and the third series of hinge knuckles;

(g) a plurality of spacer links, each spacer link having two spaced-apart bores, each of the plurality of spacer links being positioned in a respective gap of the plurality of gaps;

(h) a first cylindrical rod received in the first series of hinge knuckles and in a first of the two spaced-apart bores of each of the plurality of spacer links, to join the first series of hinge knuckles and the plurality of spacer links;

(i) a second cylindrical rod received in the third series of hinge knuckles and in a second of the two spaced-apart bores of each of the plurality of spacer links to join the third series of hinge knuckles and the plurality of spacer links, and to thereby form a pivotable junction between the first perimeter section and the second perimeter section that can pivot from a folded position, where the first elongate web surface is coplanar with the second elongate web surface, to an unfolded position where the first elongate web surface is in flush contact with the second elongate web surface;

(j) the second series of hinge knuckles being configured to intermesh with the fourth series of hinge knuckles when the pivotable junction is in the unfolded position;

(k) a third cylindrical rod; and

(l) the second series of hinge knuckles and the fourth series of hinge knuckles being adapted to receive, when intermeshed, the third cylindrical rod, to form a rigid I-beam structure between the first perimeter section and the second perimeter section, the rigid I-beam structure comprising the first perimeter section and the second perimeter section.

2. The foldable enclosure members as in claim 1 , wherein the first perimeter section further comprises a first elongate cavity wall joined to each of the first and second elongate flange surfaces, the first elongate cavity wall being spaced from and generally parallel to the first elongate web surface, and spanning the first distance spacing apart the first and second elongate flange surfaces, to define a first reinforcement channel.

3. The foldable enclosure members as in claim 2 , wherein the second perimeter section further comprises a second elongate cavity wall joined to each of the second and fourth elongate flange surfaces, the second elongate cavity wall being spaced from and generally parallel to the second elongate web surface, and spanning the second distance spacing apart the second and fourth elongate flange surfaces, to define a second reinforcement channel.

4. The foldable enclosure members as in claim 1 , wherein the first planar laminate and the second planar laminate each has a first facing layer and a second facing layer which are each selected from the group consisting of (a) a structural layer comprising a plurality of structural panels of inorganic oxide, (b) a layer of metallic sheet, and (c) a combination of a protective layer comprising a plurality of structural panels of inorganic oxide and a layer of metallic sheet.

5. The foldable enclosure members as in claim 1 , wherein each hinge knuckle of the first series of hinge knuckles has the same knuckle length, and each hinge knuckle of the second series of hinge knuckles has the same knuckle length as the hinge knuckles of the first series of hinge knuckles.

6. The foldable enclosure members of claim 5 , wherein a hinge knuckle of the first series of hinge knuckles is longitudinally offset, from a respective hinge knuckle of the second series of hinge knuckles, an offset distance equal to one-half the knuckle length.

7. The foldable enclosure members as in claim 5 , wherein each hinge knuckle of the third series of hinge knuckles has the same knuckle length, and each hinge knuckle of the fourth series of hinge knuckles has the same knuckle length as the hinge knuckles of the third series of hinge knuckles.

8. The foldable enclosure members as in claim 7 , wherein a hinge knuckle of the third series of hinge knuckles is longitudinally offset, from a respective hinge knuckle of the fourth series of hinge knuckles, an offset distance equal to one-half the knuckle length.

9. The foldable enclosure member as in claim 6 , wherein the hinge knuckles of the first and second series of hinge knuckles have the same knuckle length as the hinge knuckles of the third and fourth series of hinge knuckles.

10. The foldable enclosure member as in claim 8 , wherein the hinge knuckles of the first and second series of hinge knuckles have the same knuckle length as the hinge knuckles of the third and fourth series of hinge knuckles.

11. The foldable enclosure members as in claim 1 , wherein the hinge knuckles of the first series of hinge knuckles each has a knuckle length of the same length, and such hinge knuckles are separated from each other by a distance equal to the knuckle length.

12. The foldable enclosure members as in claim 11 , wherein the hinge knuckles of the third series of hinge knuckles each has a knuckle length of the same length, and such hinge knuckles are separated from each other by a distance equal to the knuckle length.

13. The foldable enclosure members as in claim 1 , wherein at least one of the first cylindrical rod, the second cylindrical rod and the third cylindrical rod comprises a series of linearly arranged cylindrical rod segments joined to each other.

14. The foldable enclosure members as in claim 13 , wherein each of the first cylindrical rod, the second cylindrical rod and the third cylindrical rod comprises a series of linearly arranged cylindrical rod segments joined to each other.

15. The foldable enclosure members as in claim 14 , wherein the rod segments of the first cylindrical rod are joined by threaded connections, the rod segments of the second cylindrical rod are joined by threaded connections, and the rod segments of the third cylindrical rod are joined by threaded connections.

16. The foldable enclosure members as in claim 1 , wherein the first elongate web surface defines a first receiving slot for receiving a sealing bead, the first receiving slot positioned on a face of the first elongate web surface facing the second elongate web surface when the pivotable junction is in the unfolded position.

17. The foldable enclosure members as in claim 16 , wherein the second elongate web surface defines a second receiving slot for receiving a sealing bead, the second receiving slot positioned on a face of the second elongate web surface facing the first elongate web surface when the pivotable junction is in the unfolded position.

18. The foldable enclosure members as in claim 16 , wherein the first elongate web surface defines a second receiving slot for receiving a sealing bead, the second receiving slot positioned on a face of the first elongate web surface facing the second elongate web surface when the pivotable junction is in the unfolded position.

19. The foldable enclosure members as in claim 17 , wherein the second elongate web surface defines a third receiving slot for receiving a sealing bead, the third receiving slot positioned on a face of the second elongate web surface facing the first elongate web surface when the pivotable junction is in the unfolded position.

20. The foldable enclosure members as in claim 1 , wherein the first perimeter section is made of fiberglass reinforced polymer plastic.

21. The foldable enclosure members as in claim 20 , wherein the second perimeter section is made of fiberglass reinforced polymer plastic.

22. The foldable enclosure members as in claim 1 , wherein the first perimeter section is fabricated by an extrusion process.