Kemper System's reinforced liquid-applied roofing membranes have been installed when traditional roof membranes fail to meet project demands. They withstand substrate expansion/contraction and fully adhere to seams and transitions. Kemper System membranes are permanently resilient and resistant to ice and ponding water. In addition, they preserve the architectural appearance of metal roofs and are an excellent alternative to metal roof replacement. 

Project Profile: Empire State Building, New York City, NY

Challenge
Restore the metal dome and mooring tower area to prevent corrosive effects of water infiltration. Metal dome enclosed an extensive array of broadcasting and telecommunications equipment. Multiple antenna masts penetrated through the metal dome, and were a source of leakage. The mooring tower area incorporated complex metal profiles that leaked as well.

Solution
Construct a sophisticated scaffolding system provide safe access to the work areas, which were located over 100 stories above street level. Kemperol waterproofing membrane was installed, and Kemperdur colored coating was applied to match the color of the existing metalwork. The flexibility of the Kemperol membrane allowed the fabrication of tight flashings around all antenna penetrations and decorative metal fabrications.

Assembly

Benefits