초록 ▼

A drainage system for draining rain water and internal moisture from the rear of exterior wall panels so as to effectively drain such rain water and moisture outwardly to the outside of the wall panels. The system inlcudes a vertical sealant joint behind adjoining exterior wall panels to sealingly s

A drainage system for draining rain water and internal moisture from the rear of exterior wall panels so as to effectively drain such rain water and moisture outwardly to the outside of the wall panels. The system inlcudes a vertical sealant joint behind adjoining exterior wall panels to sealingly space the wall panels from their support. The space includes foam back-up tapes, vertical sealant, drain tubes, and gutters so arranged as to effectively drain, outside the walls, through weep holes, rain water as well as moisture that tends to accumulate behind the walls. The present system drains both the vertical and horizontal joints of exterior wall panels.

대표청구항 ▼

In an exterior wall assembly comprising insulated wall panels, each having a core of insulating material covered with inner and outer metal coverings which are interfitted vertically by horizontal joints; the improvement comprising a vertically extending back-up flashing mounted on the side of a sup

In an exterior wall assembly comprising insulated wall panels, each having a core of insulating material covered with inner and outer metal coverings which are interfitted vertically by horizontal joints; the improvement comprising a vertically extending back-up flashing mounted on the side of a support mullion, fastening means and a spacer for mounting said wall panels on said back-up flashing and mullion in horizontally spaced relationship therewith with the sides of a pair of said panels spaced apart, forming a vertical gap therebetween, a gasket bridging said sides to form a vertical joint rain screen to prevent entry of rain water between said sides, horizontally extending gutters of substantially U-shape cross-section for channeling water horizontally in said gap between said back-up flashing and the inner metal coverings of said pair of panels, said gutters terminating short of said sides, a vertically extending strip of sealant adjacent the terminal ends of said gutters on each of said sides to serve as side dams for draining water and providing a primary seal, drain tubes lying in said gutters and extending through said vertically extending sealants to drain said gutters downwardly of said vertical joint.