Built in 1927, Kemper System needed to provide long-term protection for balconies and terraces due to failures of the previously installed membrane. A primary concern was that the project area is severely exposed to salt water and ultraviolet(UV) rays.
An edge-to-edge installation of Kemperol membrane and removal of existing
membrane and paver system on all setback roofs and terraces.
A long-term ponding water condition in the 180,000 sq.ft. internal box gutter system created leaks that resulted in rotting of the ornamental façade design elements. Waterproofing the gutter was a critical component of the exterior restoration of the Art Museum.
Remove the existing gutter lining and reconstruct the underlying gutter substrate. Kemperol membrane was installed, extending from below the original glazed ceramic roofing tile, completely lining the box gutter, and terminating at the edge of the façade. The existing ornamental design elements were preserved over 95% of the building perimeter.
To preserve the expensive architectural elements of the building by waterproofing all sills, cornices, terracotta water tables and gutterways, for complete exterior restoration damaged by the 9/11 tragedy.
Applied Kemperol V210 membrane to all horizontal architectural elements of facade with a limestone topcoat to match existing terracotta, integrating flashings at terracotta curtain wall, bridging wood, metal, asphalt and stone.
In 1916, Massachusetts Institute of Technology relocated is campus from Boston to neighboring Cambridge. After nearly 100 years of service, the waterproofing membrane under the famous dome began to reach the end of its service life. As a result, water began to infiltrate the building and cause damage to the interiors and contents of the library located directly under the dome. The extent of the work would be great including staging the entire dome as well as removing and re-installing a majority of the existing limestone finish. Since fasteners were going to be installed through the new waterproofing membrane to secure the limestone, fluid applied waterproofing systems were considered as the penetrations could be tied in the seamless membrane. The construction process was going to take place during on-going business hours. Therefore, minimization of disruption was also a consideration.
The limestone finish located on the lower 1/3rd of the dome was removed and set aside for re-use. The red copper standing seam roof on the horizontal section of the stepped areas was sent to be recycled. The existing 4 ply hot asphalt waterproofing membrane was mechanically removed down to a clean, sound concrete substrate. After the removal and surface preparation, Kempertec EP-Primer was applied to all surfaces and allowed to cure. Once the primer was cured, Kemperol 2K-PUR resin system waterproofing membrane was installed onto all surfaces.
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Don CeSar National Resort, St. Petersburg, FL
Philadelphia Art Museum, Philadelphia, PA
90 West Street, New York, NY
Massachusetts Institute of Technology, MA