Product Descriptive Name
High-Density Perlite-Based Cover Board 
Product Short Description
DuraBoard uses expanded perlite and reinforcing cellulosic fibers to provide excellent insulation with a stable R-value, fire resistance, and a high recycled content. It is used in multi-ply systems and can be installed in a number of ways.

Product Details


Product Long Description




Meets the requirements of ASTM C 728, Type 2 

Polymerized Asphalt Emulsion Coating: Allows for direct application of SBS or APP membranes using torch application techniques, and does not require pre-heating like heavily coated boards. This allows for fuel savings and labor efficiency by eliminating fasteners with a mechanically fastened base sheet.

Expanded Perlite: Provides good dimensional stability, excellent insulation value with stable R-value and fire resistance.

Reinforcing Cellulosic Fibers: Consists of recycled newsprint to provide strength to the board as well as high recycled content. JM utilizes third party certification by UL environment to certify the recycled content and contributes to the LEED Materials and Resource (MR) credit 4.

High Density: Provides additional strength and durability.



Iconic Louisville Building Installs a "Greenest of Green" Vegetative Solution

The six-story American Life & Accident Insurance Co. building's environmentally conscious owner initially wanted to replace its ailing 20-year-old roof with a two-ply modified bitumen system with a cool roof coating.

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Johns Manville offers one of the most comprehensive portfolios of commercial low-slope roofing solutions. We have a long standing dedication to providing solution-based systems for building owners.

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Here you will find quick links and cheat sheets to Johns Manville roofing systems code approvals and ratings. 

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Re-roofing mechanically attached or ballasted insulated single-ply systems now have the potential for recycling versus contributing to a landfill.

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The Submittal Wizard is a tool to help you pull together the necessary documents for your submittal package.

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