United Nations - General Assembly

New York

United Nations - General Assembly

Protecting a world-renowned facility

  • Category

    Roofing Solutions
  • Completed

  • Type

    Commercial Building
  • Size

    700 squares


Reroof the iconic UN General Assembly Building – the original roof was past its useful service life. Help facilitate the uninterrupted operation of the UN General Assembly Hall, the heart of the building’s internationally-critical operations.


  • A nailed base sheet was installed over the existing reroofable lightweight insulating concrete deck
  • Two layers of Paradiene 20, followed by a Paradiene 30 FR TG granule-surfaced finish ply were applied to complete the project
  • Project was one of several successful Siplast projects at this landmark location
  • The proven, redundant, robust SBS-Modified Bitumen system will protect the UN General Assembly Building through many more historic years

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