Georgia-Pacific is one of the world’s leading makers of tissue, pulp, packaging, building products and related chemicals. You may recognize our household brands, such as Brawny® paper towels, Quilted Northern® bath tissue and Dixie® cups and tableware.

If you’re in the construction business, you’re probably familiar with our gypsum panels and other quality building materials. Even if you work in aerospace, mining or facilities management, Georgia-Pacific products may be part of your day.

From sub‐floors and exterior sheathing products to drywall in walls and ceilings to roofs and fire doors, we are known for our wide range of products used throughout residential and commercial construction around the world. Our building products are designed to be strong, durable and sustainable.

We're on the job with you from the moment your products are ordered until the day the project is done. For commercial designers and builders, we offer 3‐D Design files, LEED calculators and courses that meet the continuing education requirements of the American Institute of Architects. For home builders and remodelers, our resources include everything from our Panel Guide App to help you pick the right panel for the job, to a Tool Selector and our YouTube channels for product information and tips on proper installation.

But our products go into more than just buildings. We also make the plaster doctors use to set a broken bone, the soil amendment farmers use for healthy, high‐yielding crops, and components for pottery and sculpture casting.

You'll find our ready‐to‐use construction materials like plywood and lumber at retailers across North America, while our composite panels are in much of the furniture you buy. And builders, architects, general contractors and remodelers are using our products in homes and commercial spaces in your community every day.

Learn more on our website.

HD-ISO Isn't a Risky Option

Contain the Spread of Flames and Smoke

All it takes is one burning ember and the right conditions for a fire to quickly spread. DensDeck® Roof Boards are noncombustible based on ASTM E136. Their gypsum core and fiberglass mat facers help to mitigate the risk of rooftop fire damage from every direction. HD ISO is combustible—it’s made of foam insulation that can burn. See how they compare in fire tests.

Stand Strong Against Wind Uplift

When heavy winds move over and around a building, they create low pressure above the roof. Wind uplift can cause membrane delamination and fastener withdrawal. DensDeck® Roof Boards give you a rigid base of support, a superior bonding surface and enhanced strength to mitigate damage. HD ISO’s lightweight foam can’t provide the same level of flexural strength and wind uplift resistance.

Fight the Threat of Punctures

Punctures may occur from foot traffic, dropped tools, rooftop installations or severe weather carrying flying debris. While small punctures may not look threatening, they can lead to serious problems over time.

Be Tough Enough for Very Severe Hail

DensDeck® StormX™ Prime Roof Board was the first cover board to be FM classified for Very Severe Hail (VSH) in approved single-ply assemblies. It helps provide impact protection to both the membrane and insulation of your roofing system. HD ISO is not approved for VSH.

Learn more about our HD-ISO DensDeck Roof Boards.

Georgia-Pacific Live From IIBEC

DensDeck® Roof Boards

Installing the right materials for your low-slope commercial roofs can provide a solid defense against the most common forms of damage and wear. Georgia-Pacific offers three gypsum cover board solutions based on design intent. In 1987 we introduced the innovative design of DensDeck Roof Board—a cover board with strong impact resistance and a non-combustible gypsum core.

Next came DensDeck Prime Roof Board, with even more moisture resistance. Finally, DensDeck StormX™ Prime Roof Board offers enhanced hail and wind-uplift resistance that can handle even the most extreme weather. Plus, DensDeck StormX Prime Roof Board is FM-classified for Very Severe Hail (VSH) in approved single-ply membrane assemblies.

Including a gypsum cover board can help protect your commercial roof systems, help you stay on schedule and provides a rigid substrate for future rooftop enhancements.

Learn more by visiting our website at DensDeck.com.

The Four Dimensions of Roof Protection

DensDeck® Roof Boards help protect against some of the most common risk factors for rooftop damage:

• Fire
• Wind
• Puncture
• Hail

Fire

The solid gypsum core in DensDeck Roof Boards is made of 21% crystallized water, which helps to inhibit the burning process and reduce a fire’s escalation. The addition of fiberglass mat facers on the front and back of the board also help to slow the spread of flames and smoke.

Wind

When heavy winds move over and around a building, they create low pressure above the roof, just like air flowing over an airplane wing. Wind uplift can cause major roof damage through membrane delamination, fastener withdrawal and puncture from flying debris.

DensDeck Roof Boards are engineered to help mitigate these risks by adding strength to the roof assembly, giving the membrane support and providing a superior bonding surface. Gypsum cover boards also ratchet up your roof assembly’s protection barrier by giving it an added layer of durability.

Puncture

Punctures may occur from foot traffic, dropped tools and rooftop installations. They can also be caused by severe weather carrying debris or hail. While small punctures may not look threatening, they can lead to serious problems over time. When water is allowed to seep in, mold may grow and weaken the structure, remaining nearly invisible until it’s too late.

One approach to preventing puncture damage is to add an impact-absorbing layer to your roofing system. DensDeck Roof Boards are intended to be applied directly under roof membrane systems to add structural support, as well as dramatically reduce damage.

Hail

Several factors influence the design and construction of roofs, especially a region’s climate. Hail and the rising threat of severe weather events have made it more important than ever to use materials that add strength and resiliency to your roofing systems.

Hailstorms can cause excessive damage to cars, homes and commercial buildings while also being deadly to livestock and people—even when a storm is brief. Get all the facts on severe hail and find out the best way to reinforce your roofs in the eBook, Design for Extreme Weather: Why You Should Specify a Resilient Roof System.

Get your copy of the Design for Extreme Weather: Why You Should Specify a Resilient Roof System eBook today!

Stop Callbacks and Prepare for the Future

Returning to a job site to fix damage that could have been prevented is always a source of frustration. Using a durable cover board can help you avoid rooftop damage during construction—so your crews stay busy working on new jobs instead of dealing with costly callbacks.

And although your roofs may start off with minimal equipment, you can’t know what they will look like in the future. HVAC installations and maintenance can be tough on a roof, while solar panels may increase the risk of fire. Green roofs also call for versatile roofing systems with a rigid substrate to handle the load. Any type of weight-bearing rooftop installation calls for strength and versatility.

When you use gypsum roof boards, you can improve a building’s resiliency, protect the owner’s investment and reinforce your reputation for long-lasting, durable roof systems. DensDeck® Roof Boards offer a gypsum-tough solution for every commercial roof design.

Learn how to prevent callbacks to past job sites.

eBooks

Do your roofs have what it takes to stand up to every severe hail?

Get the only comprehensive eBook with the latest data on the rise of severe storms. Key topics: The High Price of Storm Damage Find out the billion dollars of damage the steady rise of severe weather is causing across the nation. Very Severe Hail 101 (VSH) Get the details on how FM Global defines VSH ...
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Latest Podcasts

Greg Hudson - Extreme Weather Propels Roofing Innovation

S6:E66 Heidi J. Ellsworth visits with Greg Hudson, director of commercial Dens sales at Georgia-Pacific about how extreme weather is propelling innovation in the roofing and overall construction industries. With amazing knowledge from his roofing career, Greg shares what he has seen over the years and how weather continues to push ...
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Greg Hudson - Getting Roofing Done with Georgia-Pacific Building Products

S6:E3 Welcome to another exciting episode of Roofing Road Trips! In this installment, Heidi J. Ellsworth sits down with special guest, Greg Hudson from Georgia-Pacific Building Products in person at the NRCA fall meetings. From innovative materials to sustainable practices, Greg takes us on a virtual road trip through the ...
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The Proof is in the Roof

The experts at Georgia-Pacific share recent survey data on how roofing cover boards can help extend the life of a roof. The RLW features results from a third-party survey where data was collected from an FMI Roof Cover Board Survey in May, 2020. The survey found that the ...
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Read Listen Watch - Educational Content

The Proof is in the Roof

The experts at Georgia-Pacific share recent survey data on how roofing cover boards can help extend the life of a roof. The RLW features results from a third-party survey where data was collected from an FMI Roof Cover Board Survey in May, 2020. The survey found that the ...
View Content

Latest Classifieds

A roof board you can trust

Mother Nature is unpredictable, but the materials you choose don't have to be! That's where DensDeck® Roof Boards from Georgia-Pacific come in. Made of a fiberglass mat Gypsum substrate, this durable material is ideal for low-slope roofs that need to withstand a pummeling from wind, fire, extreme hail and more. Giving ...
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Severe Storms Are Rising, Are You Prepared?

Every year, billions of dollars of damages are caused by severe weather across the nation. But there are ways to combat damage to commercial roofs. Enter Georgia-Pacific's eBook, "Design for Extreme Weather." As the only comprehensive eBook with the latest data regarding the rise of severe storms, Georgia-Pacific outlines details of ...
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Latest Videos

Georgia-Pacific Building Products Video Playlist

Learn more about Georgia-Pacific Builidng Products by visiting their RCS Directory. See more videos and subscribe to the Georgia-Pacific Building Products YouTube Channel. Protect Your Roof from a Lifetime of Foot Traffic Damage Four Dimensions of Durability in Roofing: Wind Four Dimensions of Durability in Roofing: Fire Four Dimensions of Durability in Roofing: Puncture Does your ...
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