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Re-roof LEED® EBOM Gold Certification Project: The Empire State Building implements green roof systems using ROXUL insulation.

*(ro-en) project_rw_responsible*

420 Bronte Street South
Suite 105, Milton
L9T 0H9 Ontario

Phone: +1 905 878 8474


*(ro-en) project_contractor*

Castle Restoration & Construction Inc.

*(ro-en) project_architect*

Shreve, Lamb and Harmon

*(ro-en) project_consultancy*

Rainer W. Gerbatsch RRC, Siplast®

The Empire State Building, opened in 1931, is the world's most famous office building and attracts tenants and visitors from around the globe. The Empire State Building recently re-roofed the 21st, 25th and 30th floor asphaltic roof systems with vegetative green space.

Roof Assembly

  • Intensive Vegetative Roof System and Paving Stones on pedestals
  • Protection Course
  • Torch Modified Siplast Teranap® (SBS elastomeric bitumen geomembrane)
  • 1" ROXUL MONOBOARD® Plus rigid stone wool insulation
  • Leak detection grid
  • Low rise foam 6" o/c
  • 2" Polyisocyanurate insulation
  • Concrete Deck

ROXUL Product Installed
MONOBOARD® Plus is a rigid, mono density, bitumen coated, stone wool roof cover board with a uniform density that is suitable for roofing, re-roofing and recover applications.

Why MONOBOARD® Plus insulation was Chosen for this Project
MONOBOARD® Plus was used for its semi-rigidity as a coverboard to protect the insulating layer, provide support to the waterproofing membrane layer, stability under wide temperature variations, fire protection and long term thermal resistance.

Benefits of ROXUL Insulation
ROXUL stone wool insulation, has a long term stable R-value, is dimensionally stable, non-combustible, water repellent, non-corrosive, sound absorbent, will not promote fungi growth and is environmentally sustainable. ROXUL has achieved ICC-ES SAVETM thirdparty certification for recycled content on all products produced in the Milton facility. Containing a minimum of 75%, the facility is certified up to 93% recycled content.