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Interlocking roofing panel system

  • US 8,141,313 B2
  • Filed: 12/09/2010
  • Issued: 03/27/2012
  • Est. Priority Date: 10/05/2007
  • Status: Active Grant
First Claim
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1. A roofing system comprising:

  • a plurality of roofing panel assemblies, each roofing panel assembly having;

    a base having a substantially planar surface;

    a plurality of I-joists having an upper flange, a lower flange, and a web, wherein the base is attached to the lower flanges of the plurality of I-joists; and

    a cap having a substantially planar surface, wherein the cap is attached to the upper flanges of the plurality of I-joists;

    wherein the plurality of I-joists includes a first edge most I-joist and a second edge most I-joist, wherein a first edge of the cap is attached to the upper flange of the first edge most I-joist such that a portion of the upper flange of the first edge most I-joist is not covered by the cap, the portion defining a first distance, and wherein a second edge of the cap extends beyond an edge of the second edge most I-joist for a second distance less than a width of the upper flange of the second edge most I-joist;

    wherein the second distance is also less than or equal to the first distance;

    wherein a first edge of the base is attached to the lower flange of the first edge most I-joist such that the first edge of the base extends outwardly no further than an edge of the lower flange of the first edge most I-joist;

    wherein a second edge of the base is attached to the lower flange of the second edge most I-joist such that the second edge of the base extends outwardly no further than an edge of the lower flange of the second edge most I-joist; and

    wherein adjacent roofing panel assemblies are attached such that the second edge of the cap engages the portion of the upper flange of the first edge most I-joist not covered by the cap.

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