The NRDCA is an organization dedicated to helping owners, design professionals and contractors understand the critical elements in the selection and installation of the roof deck – the foundation for every great roof assembly. 

Since pre-historic people left their cave dwellings, protection from the elements has evolved into the modern roof deck and roofing systems of today. In the last few decades, building science has also evolved in understanding how the complex components of the roof assembly work together to provide safe, dry, high-performance building envelopes that protect our most valuable assets.

Our association is comprised of installing contractors, manufacturers and design professionals.  Together, we focus on the selection, design and installation of roof deck systems that maximize building performance and owner value. 

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Become a member

Our membership types include:

• Contractor: Any business engaged in furnishing and installing engineered roof deck systems shall be eligible for membership as a contractor member of the association. 
• Manufacturer: Any business engaged in supplying products to the contractor members shall be eligible for membership as a supplier member of the association.
• Design professional: Any individual or business engaged in the design, consulting or testing of engineered roof deck systems shall be eligible for membership as a design professional member of the association

Learn more about our membership types.

CEU on NRDCA guidelines

The NRDCA has enhanced the “Engineered Roof Deck Systems” program by modifying the current program to include HSW and SD information. Based on these enhancements the program is now AIA/CES approved for one learning unit, HSW and SD. The NRDCA program titled “Engineered Roof Deck Systems” provides information on three currently available composite roof deck systems that include mineral board-steel deck systems, light weight insulating concrete systems and cementitious wood fiber systems. Repair information is also provided for poured gypsum roof deck systems.

This PowerPoint slide program presented by a NRDCA member runs for 1 hour and the leaning objectives to be received from this program are:

• Understand how three types of roof decks provide structural properties to resist downward and wind uplift loads meeting current code requirements.
• Understand the installation procedures and attributes of roof deck systems and how they improve in place insulation, fire protection and acoustical performance.
• Understand the proper repair of poured gypsum roof decks installed in the 40’s, 50’s, and 60’s to allow continued use of these systems without removal and disposal costs.
• Understand the LEED values, code requirements and sustainable attributes of the roof decks.

Should you desire to have this presentation given at a regularly scheduled meeting or a box lunch program, please contact any member or the NRDCA office to work out presentation details.

Learn more about about the guideline program.

Cementitious wood fiber

Cementitious wood fiber refers to an acoustical wood fiber panel constructed of wood fibers bonded with an inorganic hydraulic cement. When used as a structural roof panel, they provide a finished ceiling and high noise reduction coefficients (NRC).  Cementitious wood fiber panels come in a variety of types, including structural insulated panels (SIPs) and have been in use since the 1950's.

Learn more about cementitious wood fiber.

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Continuing Education on NRDCA Roof Deck Systems

CEU on NRDCA guidelines The NRDCA has enhanced the “Engineered Roof Deck Systems” program by modifying the current program to include HSW and SD information. Based on these enhancements the program is now AIA/CES approved for one learning unit, HSW and SD. The NRDCA program titled “Engineered Roof Deck Systems” provides ...
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