In a continuation of our 75 year relationship with
Rockefeller University, Nicholson & Galloway was retained
to waterproof the new Peggy Rockefeller Memorial Plaza and
in a very constricted site and under an intense schedule,
Nicholson & Galloway scarified approximately 3,000 square
feet of original waterproofing to clean concrete and proceeded
to install over 25,000 square feet of Siplast’s Terranap
Waterproofing System on the flat areas and over 5,000 square
feet of flashings on vertical surfaces.
waterproofing of the Plaza included coordination and flashing
of three-hundred electrical, plumbing and HVAC penetrations.
the completion of each area of the Plaza waterproofing,
dams were installed and forty-eight hour flood tests were
performed to confirm the quality of the work.
completion of the project, the Owner was provided with a
Twenty Year Labor and Material Warranty. As always, all
work was supervised and performed by Nicholson & Galloway’s