Knock-down roof curb

Abstract

A standardized, corrosion-resistant roof curb that can be shipped in a disassembled state, which an installer may assemble, size, locate and configure to provide an appropriate roof slope on any roof without welding, includes a panel and an extrusion configured to receive the panel, wherein the panel is trimmed according to the pitch of the roof. Methods of making and installing the roof curb also are disclosed.

1 . Roof curb comprising: 
 a panel; and    an extrusion configured to receive said panel;    wherein said panel is trimmable according to a roof pitch.    
   
   
       2 . Roof curb of  claim 1 , wherein said extrusion is constructed of aluminum.  
   
   
       3 . Roof curb of  claim 1 , wherein said extrusion is configured to provide continuous contact along the roof.  
   
   
       4 . Roof curb of  claim 3 , wherein said extrusion is configured to provide continuous contact along a rib in the roof.  
   
   
       5 . Roof curb of  claim 1 , further comprising: 
 a second extrusion; and    a connection block for interconnecting said extrusion and said second extrusion.    
   
   
       6 . Roof curb of  claim 1 , further comprising a channel configured to mount on a building to support said extrusion.  
   
   
       7 . Roof curb of  claim 6 , further comprising: 
 a second extrusion that is connectable with said extrusion; and    a second channel configured to mount on said channel to support said second extrusion.    
   
   
       8 . Roof curb of  claim 1 , further comprising a diverter angle configured to mount on said extrusion.  
   
   
       9 . Roof curb of  claim 8 , further comprising: 
 a channel configured to mount on a building to support said extrusion; and    a diverter plate configured to mount on said channel for supporting said diverter angle.    
   
   
       10 . Method of making a roof curb comprising: 
 providing a roof curb kit including an extrusion;    determining a curb size; and    cutting the extrusion according to said determining.    
   
   
       11 . Method of  claim 10 , wherein the extrusion is configured to accommodate a roof rib; 
 said method further comprising ascertaining an orientation of the extrusion relative to a roof rib to provide continuous contact along the roof and rib;    wherein said cutting corresponds to said ascertaining.    
   
   
       12 . Method of  claim 10 , wherein: 
 said cutting produces a sized extrusion; and    the roof curb kit includes a connection block;    said method further comprising: 
 cutting a second extrusion according to said determining, defining a second sized extrusion; and  
 interconnecting the sized extrusion and the second sized extrusion with the connection block.  
   
   
   
       13 . Method of  claim 12 , further comprising, prior to said interconnecting, drilling holes in at least one of the sized extrusion and the second sized extrusion corresponding to passages in the connection block.  
   
   
       14 . Method of  claim 12 , further comprising, prior to said interconnecting, applying sealant to one or both of the connection block and the sized extrusion or second sized extrusion.  
   
   
       15 . Method of  claim 10 , wherein the kit includes a panel, further comprising mounting the panel on the extrusion.  
   
   
       16 . Method of  claim 15 , further comprising trimming the panel according to a roof pitch.  
   
   
       17 . Method of installing a roof curb comprising: 
 attaching a roof curb base to a roof;    trimming a panel according to a roof pitch; and    mounting the panel on the roof curb.    
   
   
       18 . Method of  claim 17 , further comprising, prior to said attaching, cutting the roof according to the roof curb base and a diverter plate.  
   
   
       19 . Method of  claim 18 , further comprising, between said cutting and said attaching, installing the diverter plate.  
   
   
       20 . Method of  claim 19 , further comprising mounting a diverter angle on the roof curb base and the diverter plate.