DensDeck Roof Board

DensDeck Roof Board

Product Descriptive Name
Glass Mat Faced Gypsum Cover Board 
Product Short Description
DensDeck Roof Board is a gypsum cover board with a glass mat facer.

Product Details

DensDeck Roof Board

Product Long Description

Features

DensDeck Roof Board

Features

Meets the requirements of ASTM C 1177

Fire Performance: FM Class 1 for fire barrier requirements and UL Class A unlimited slope with excellent surface burning characteristics. 5/8" thickness meets the requirements of Type X per ASTM C 1177.

Moisture and Mold Resistance: Scores a 10, the highest performance level for mold resistance, when tested in accordance with ASTM D 3273.

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Resources

Marcus High School

The Marcus High School reroof project came about because the previous system was damaged by hail. The contractor up for such a large project was Martin Tomlinson Roofing, and they installed a two ply bituminous system made by Johns Manville.

Colorado Mountain School Expansion Roof with JM EPDM R FIT

Summit High School (SHS) expanded its main building by 35,200 square feet. Arapahoe Roofing and Sheet Metal, Inc. won the job to roof this major addition. As a long-time Johns Manville partner, Arapahoe worked with the District’s facilities manager to choose a complete JM system that included 75 mil reinforced membrane as specified by the architect.

Building Owner Resources

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.

Codes Corner

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

Guarantees and Roof Maintenance

Support services can include: conceptual product information, building science, wind uplift data, national and local code understanding, FM Global® and UL® regulations, fastening patterns and sheet layouts, installation guidelines and standard details.

Recycling Resources

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

SmartBinder Resource Library 

Your resource for all JM documents in one place. 

Submittal Wizard

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

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