Tapered – ISOX

The ISOX BZO product line is designed to provide a simple, efficient, and high-performance solution for creating tapered insulation on commercial roofing systems. Manufactured from closed-cell polyurethane foam meeting CAN/ULC-S704-11, Type 2, Class 2 standards, ISOX BZO panels ensure optimal water drainage management while maintaining superior thermal continuity.

Thanks to their pre-molded design, ISOX BZO panels allow for quick and uniform installation, while reducing the risk of thermal breaks often caused by cuts made directly on-site.

Standard panels are available in 4’ x 4’ (1220 mm x 1220 mm) format with a 0.00’’ starting thickness, in the following regular slopes:

  • 2% — Maximum Thickness: 1.00’’
  • 3% — Maximum Thickness: 1.50’’
  • 4% — Maximum Thickness: 2.00’’

Several other custom configurations and dimensions are also possible, including slopes of:

  • 1 %
  • 1.5 %
  • 2 %
  • 3 %
  • 4 %

ISOX BZO panels can be integrated into various roofing insulation systems to optimize drainage while maintaining excellent thermal performance.

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Features

  • Optimizes water flow to drains
  • Reduces risks of water ponding
  • Quick and simple installation
  • Eliminates complex field cuts
  • Ensures optimal thermal continuity
  • Compatible with conventional roofing systems
  • Available in standard and custom sizes

General Specifications

ISOX BZO panels from the ISOX line meet CAN/ULC S-704 requirements for Type 2, Class 3 materials, as well as ASTM C1289 requirements for Type II, Class 2, Category 2 materials. ISOX BZO panels are compatible with all types of hot- or cold-applied adhesives, depending on the requirements of the roofing system used. Panels are manufactured in a standard 1220 mm x 1220 mm (4’ x 4’) format with various pre-molded slope configurations, allowing for quick, uniform installation optimized for commercial roof drainage.

Composition

  • Top facer: Inorganic – Acrylic-coated fiberglass
  • Bottom facer: Inorganic – Acrylic-coated fiberglass
  • Attachment method: Polyurethane-based adhesives, hot bitumen (Type 2 or 3 roofing asphalt), or mechanical fastening with screws and plates.
  • Service temperature range: -73°C to 122°C (-100°F to 250°F)

Important Notes

ISOX BZO panels can be combined with ISOX Corners pre-molded corners in all sizes to achieve optimal slope without thermal bridging caused by valley cuts. The dimensions listed above represent Millenium’s standard formats. Various special sizes and custom configurations are also available upon request. For more information: pentes@millenium.plus