Roof panel construction for an air handling unit

Abstract

A roof panel for use in an air handling unit including a skin, and a fixture having a base. The base is interposed between opposed ends and opposed risers extending from the ends of the base in a direction away from the surface. The risers are secured to the skin to form an enclosed chamber between the skin and the fixture. An insulating material is then injected into the enclosed chamber. Substantially no standing liquid accumulates on the skin when the base is secured to the air handling unit framework.

1 . A roof panel for use in an air handling unit comprising: 
 a skin; and    a fixture, the fixture having a base and at least one flange extending from the base, the at least one flange being secured to the skin, wherein the at least one flange, the skin and the base form an enclosed chamber, the skin and the base being substantially non-parallel.    
   
   
       2 . The roof panel of  claim 1  further comprising an insulating material disposed in the enclosed chamber.  
   
   
       3 . The roof panel of  claim 1  wherein the fixture is of unitary construction.  
   
   
       4 . The roof panel of  claim 1  wherein the skin is of unitary construction.  
   
   
       5 . The roof panel of  claim 1  wherein the skin is configured to prevent liquid accumulation on the skin when the base is maintained in a substantially horizontal position.  
   
   
       6 . The roof panel of  claim 5  wherein the skin includes at least one sloped portion.  
   
   
       7 . The roof panel of  claim 1  further comprises a dividing member interposed between the skin and the base to divide the enclosed chamber into at least two portions.  
   
   
       8 . The roof panel of  claim 1  wherein the base is substantially planar.  
   
   
       9 . The roof panel of  claim 8  wherein the skin comprises a mid span roofline forming two sloped portions.  
   
   
       10 . The roof panel of  claim 9  wherein each of the two sloped portions is substantially planar.  
   
   
       11 . The roof panel of  claim 10  further comprising a dividing member interposed between the two sloped portions and the fixture to divide the enclosed chamber into at least two portions.  
   
   
       12 . The roof panel of  claim 11  wherein the dividing member is configured to secure the two sloped portions at a predetermined angular position.  
   
   
       13 . The roof panel of  claim 12  further comprises a plurality of enclosed subdivided chambers, each enclosed subdivided chamber abutting along at least one flange.  
   
   
       14 . The roof panel of  claim 13  further comprises at least one seam member, each of the at least one seam member overlying each abutting flange of the at least one flange of abutting enclosed subdivided chambers.  
   
   
       15 . The roof panel of  claim 1  wherein the fixture comprises opposed end portions extending from the base and the skin comprises opposed retaining portions adjacent the end portions.  
   
   
       16 . The roof panel of  claim 15  wherein each of the retaining portions includes a retaining flange.  
   
   
       17 . The roof panel of  claim 16  wherein the retaining flange overhangs an interconnected framework of structural members of the air handling unit.  
   
   
       18 . The roof panel of  claim 1  further comprises at least one end cap, each end cap configured and disposed to receive a flange of the at least one flange.  
   
   
       19 . The roof panel of  claim 18  wherein each end cap of the at least one end cap overhangs a portion of an interconnected framework of structural members of the air handling unit.  
   
   
       20 . The roof panel of  claim 1  further comprises a plurality of enclosed chambers, each adjacent enclosed chamber abutting along at least one flange.  
   
   
       21 . The roof panel of  claim 20  further comprises at least one seam member, each seam member overlying each abutting flange of the at least one flange of abutting enclosed chambers.  
   
   
       22 . An air handling unit construction comprising: 
 a plurality of structural members;    a plurality of structural fittings, each structural fitting being configured to receive an end of at least two structural members to connect the at least two structural members, the plurality of structural fittings and the plurality of structural members being interconnected to form a framework having a plurality of frames;    a plurality of panels each being received by a frame of the plurality of frames to form an enclosed panel structure; and    a panel of the plurality of panels forming a roof panel, the roof panel comprising: 
 a skin; and  
 a fixture, the fixture having a base and at least one flange extending from the base, the at least one flange being secured to the skin, wherein the at least one flange, the skin and base form an enclosed chamber, the skin and the base being substantially non-parallel.  
   
   
   
       23 . The air handling unit of  claim 22  wherein the fixture is of unitary construction.  
   
   
       24 . The air handling unit of  claim 22  wherein the skin is of unitary construction.  
   
   
       25 . The air handling unit of  claim 22  wherein the skin is configured to prevent liquid accumulation on the skin.  
   
   
       26 . The air handling unit of  claim 22  further comprises a dividing member interposed between the skin and the base end portions to divide the enclosed chamber into at least two portions.  
   
   
       27 . The air handling unit of  claim 22  wherein the skin comprises a mid span roofline forming two sloped portions.  
   
   
       28 . The air handling unit of  claim 27  wherein each of the two sloped portions is substantially planar.  
   
   
       29 . The air handling unit of  claim 28  wherein a dividing member interposed between the two sloped portions and the fixture to divide the enclosed chamber into at least two portions.  
   
   
       30 . The air handling unit of  claim 29  wherein the dividing member is configured to secure the two sloped portions at a predetermined angular position.  
   
   
       31 . The air handling unit of  claim 22  wherein the fixture comprises opposed end portions extending from the base and the skin comprises opposed retaining portions adjacent the end portions.  
   
   
       32 . The air handling unit of  claim 31  wherein each of the retaining portions includes a retaining flange.  
   
   
       33 . The air handling unit of  claim 32  wherein the retaining flange overhangs an interconnected framework of structural members of the air handling unit.  
   
   
       34 . The air handling unit of  claim 22  further comprises at least one end cap, each end cap configured and disposed to receive a flange of the at least one flange.  
   
   
       35 . The air handling unit of  claim 34  wherein each end cap overhangs an interconnected framework of structural members of the air handling unit.  
   
   
       36 . The air handling unit of  claim 22  further comprising a plurality of enclosed chambers, each adjacent enclosed chamber abutting along at least one flange.  
   
   
       37 . The air handling unit of  claim 36  further comprising at least one seam member, each seam member overlying the flange of the at least one flange between abutting enclosed chambers.