Concrete masonry units window and door flashing and installation

Abstract

Concrete masonry units, CMU, windows and doors are flashed by applying a side flashing to the top and sides of the rough opening before blocking, applying a sill pan in the bottom of the rough opening, and then installing the window or door. Portions of the side flashings on the top and sides of the rough opening are then bent over the side and top window or door flanges so that a portion of the side flashings may be adhered or otherwise fastened to the flanges to provide a seal.

1 . A concrete masonry unit window structure comprising
 a rough opening comprising
 an interior, 
 an exterior, 
 a top, 
 a first side, 
 a second side, and 
 a bottom; 
   a top side flashing applied to the top of the rough opening;   a first side flashing applied to the first side of the rough opening;   a second side flashing applied to the second side of the rough opening;   blocking applied to the top, first side, and second side of the rough opening;   a sill pan installed in the bottom of the rough opening;   a window installed over a portion of the sill pan and over a portion of the blocking, the window comprising
 a first side flange, 
 a second side flange, and 
 a top flange, 
   such that a portion of the first side flashing is bent over at least a portion of the first side flange, and a portion of the second side flashing is bent over at least a portion of the second side flange, and a portion of the top side flashing is bent over at least a portion of the top flange.   
   
   
       2 . The window structure of  claim 1  wherein
 the first side flashing further comprises a rigid portion and a flexible portion, such that at least a portion of the flexible portion is bent over the first side flange;   the second side flashing further comprises a rigid portion and a flexible portion, such that at least a portion of the flexible portion is bent over the second side flange; and   the top flashing further comprises a rigid portion and a flexible portion, such that at least a portion of the flexible portion is bent over the top flange.   
   
   
       3 . The window structure of  claim 1  wherein
 the first side flashing further comprises at least one fold groove.   
   
   
       4 . A concrete masonry unit door structure comprising
 a rough opening comprising
 an interior, 
 an exterior, 
 a top, 
 a first side, 
 a second side, and 
 a bottom; 
   a top side flashing applied to the top of the rough opening;   a first side flashing applied to the first side of the rough opening;   a second side flashing applied to the second side of the rough opening;   blocking applied to the top, first side, and second side of the rough opening;   a sill pan installed in the bottom of the rough opening;   a door installed over a portion of the sill pan and over a portion of the blocking, the door comprising
 a first side flange, 
 a second side flange, and 
 a top flange, 
   such that a portion of the first side flashing is bent over at least a portion of the first side flange, and a portion of the second side flashing is bent over at least a portion of the second side flange, and a portion of the top side flashing is bent over at least a portion of the top flange.   
   
   
       5 . The door structure of  claim 1  wherein
 the first side flashing further comprises a rigid portion and a flexible portion, such that at least a portion of the flexible portion is bent over the first side flange;   the second side flashing further comprises a rigid portion and a flexible portion, such that at least a portion of the flexible portion is bent over the second side flange; and   the top flashing further comprises a rigid portion and a flexible portion, such that at least a portion of the flexible portion is bent over the top flange.   
   
   
       6 . The door structure of  claim 1  wherein
 the first side flashing further comprises at least one fold groove.   
   
   
       7 . A method for sealing around a concrete masonry unit window installed in a rough opening having a top, first side, second side, and bottom; the method comprising
 installing a top side flashing on the top of the rough opening;   installing a first side flashing on the first side of the rough opening;   installing a first side flashing on the first side of the rough opening;   installing blocking on the top, first side, and second side of the rough opening;   installing a sill pan on the bottom of the rough opening;   installing a window over at least a portion of the sill pan, top blocking, first side blocking, and second side blocking, the window having
 a top flange, 
 a first side flange, and 
 a second side flange; and 
   bending a portion of the first side flashing over at least a portion of the first side flange;   bending a portion of the second side flashing over at least a portion of the second side flange; and   bending a portion of the top side flashing over at least a portion of the top flange.   
   
   
       8 . The method of  claim 7  wherein bending a portion of the first side flashing over at least a portion of the first side flange further comprises
 bending at least part of a flexible portion of the first side flashing over at least a portion of the first side flange.   
   
   
       9 . The method of  claim 8  wherein bending a portion of the first side flashing over at least a portion of the first side flange further comprises
 bending at least part of a flexible portion of the first side flashing at a fold groove.