Tag Archives: Commercial roofing

DensDeck® Roof Board

Proven Performance for nearly 30 years!

Densdeck Roof BoardsWhen it comes to roof boards, DensDeck roof boards are proven for their toughness and versatility. They have billions of square feet installed in different types of roofing systems and climates. They are far more effective than paper-faced gypsum boards, wood fiberboard and perlite, and other conventional roofing products, to withstand deterioration, warping and job-site damage, due to it’s unique construction. DensDeck® panels continue to earn industry accolades due to their ability to deliver high quality performance, every time.

Some of the benifits of DensDeck® Roof Boards

Provides superior fire protection: DensDeck® and DensDeck® Prime roof boards are excellent fire barriers over combustible and noncombustible roof decks.  Georgia-Pacific Fire Rated Products, such as DensDeck Roof Boards, are required by standards established by third party organizations to provide certain levels of fire resistance. This is established by testing specified building assemblies/systems in a laboratory setting under certain controlled conditions and pursuant to certain procedures. Read more about its Class 1 Fire Rating here.

Holds up well under normal construction and maintenance foot traffic while stiffening and stabilizing roof decks: The enhanced boards demonstrate superior compressive strength to support equipment and post-construction foot traffic. DensDeck_IMG_3151The DensDeck Prime panels show greater flexural strength and pull-through resistance than ¼” gypsum fiber boards in fastener system** testing.

**3 in. insulation plates and #12 fasteners

Easy to install in all types of roof system: The coated surface of DensDeck Prime Roof Boards provides an ideal substrate for a wide variety of adhered roofing systems by allowing a uniform spread of adhesives, which results in a strong, consistent bond. In 2013, Georgia-Pacific Gypsum made several enhancements to DensDeck Prime Roof Board, and contractors particularly like its ease of handling, easy scoring and snapping with no special tools required.

Ideal product for direct membrane application: Another key feature is

Adhesives are easily applied to DensDeck Roof Boards

demonstrable dimensional stability so no gapping is required; and DensDeck panels are noncombustible, per ASTM E136. They can be used in cold mastic, torch-applied modified bitumen as well as fully-adhered, single-ply systems. DensDeck Prime Roof Boards are resistant to mold growth, and have scored a rating of 10, the highest level of performance for mold resistance under the ASTM D3273 test method.

Tested within roofing systems for sound isolation: Sound Isolation solutions are made easy with DensDeck® Roof Boards. Introduced to the market nearly 30 years ago, DensDeck® Roof Boards are the first gypsum roof boards tested to contribute to Sound Transmission Class (STC) ratings of up to 61 and Outdoor Indoor Transmission Class (OITC) ratings of up to 49 in roofing assemblies for commercial framed construction. This is important to meet the industries new standards, codes, and green building program demands. This also makes it an ideal material for buildings in noisy areas such as near airports, freeways, and railroads.

About Georgia-Pacific

GP-Main-LogoEstablished in 1927 as a hardwood lumber wholesaler, Geogia-Pacific is now one of the world’s leading makers of tissue, pulp, paper, packaging, building products and related chemicals. With recognizable household brands such as Brawny® paper towels, Quilted Northern® bath tissue and Dixie® cups and tableware, that any consumer will recognize. But Georgia-Pacific is also recognizable in the construction and aerospace industry as well! With high standards in quality and safety, over 35,000 employees around the world, help make Georgia-Pacific part of everyday life filling home, commercial and industrial needs.

About Us

We at Chase Construction North West, Inc. are proud to work with Georgia-Pacific products, specifically the DensDeck Roof Board. It has been an essential part of several of our roofing projects, in both the Residential and Commercial arena. If you are in need of roofing, decking, waterproofing, or skylight installation services, contact Chase Construction North West Inc. today! Our experienced tradesmen are always ready to give you their best. We provide services in King County and Pierce County, along with major cities such as Seattle, Tacoma, Puyallup, Federal Way, Renton, Auburn, Des Moines and all of the surrounding cities. fill out our free estimate form or Call us today Puget Sound! – 253-445-8950. DensDeck-Roof-Boards

Fully Adhered TPO In Renton, WA.

Screws Or Glue? What Is The Difference?

If you are in the roofing industry it is more than likely you have installed a TPO flat roofing system before. However, the question that comes to mind when you are facing a flat roofing project requiring a TPO membrane is whether or not to go with fully adhered or mechanically attached! What is important is that you know the difference between the two to ensure you install the appropriate roofing system for the project to guarantee it withstands time and our environment.

Mechanically Attached

A mechanically-attached roofing system is a membrane roof that is attached to the substrate; i.e., wood, concrete, steel, etc., by mechanical means. This mechanical attachment could be with screws, concrete nails, augers, etc. The fastener used is almost entirely dependent upon the substrate (type of roof decking). Any insulation, substrate board, or cover board that is a part of the roofing assembly would also be attached into the building’s roofing substrate, either directly or indirectly by means of the direct attachment of the other, adjacent components. Often these “intermediary” components are attached independently of the roof membrane and are done with sufficient fasteners and in a specific pattern so as to achieve particular wind up-lift ratings, if such are required. The membrane roofing system is then installed on top of and through those intermediary components and into the roofing substrate. Since the insulation in a mechanically-attached system is attached separately and then is further secured indirectly when the membrane roof is installed, the number of fasteners required to “fasten” the insulation to the substrate is much lower than a fully-adhered roof.



▪ Adaptable to unusual roof configurations

▪ High wind uplift performance

▪ Low material cost

▪ Lightweight

▪ Fast installation



Fully Adhered

A fully-adhered roofing system is a membrane roof that is attached to a roofing substrate indirectly using adhesives, which is just a fancy word for glue. Sometimes the roofing membrane is installed directly on top of the roofing substrate. But usually there is insulation and maybe even a coverboard that is also part of the assembly. If that is the case, then obviously the roof membrane is attached to the insulation (or cover board) instead of directly to the substrate. In such a scenario, the insulation (or cover board) may actually be mechanically-attached to the substrate first and then the roofing membrane is glued to the top of that. Let’s look at this a little more closely



• Aesthetically pleasing

• Proven system that has been installed for decades.

• No fluttering in the roof system

• Offers the best manufacturers wind ratings.

• Can be a quiet installation when paired with an olybond installation adhesives.


Fully Adhered TPO System In Renton, WA

Chase Construction NW, Inc. has been working on a commercial roofing project in Renton, WA. for an apartment complex called Heritage Hills. We determined the best roofing system for this project would be GAF’s fully adhered 60 mil TPO. Check out these before and after photos and video of us installing GAF’s fully adhered 60 mil TPO flat roofing system!

What Type Of Warranty Does GAF Offer For A Commercial Roof?

Good, Better & Best!

Roof Warranties


Weather Stopper® Integrated System Limited Warranty

If you are looking for “just the basics” this warranty covers just that. The Weather Stopper® Warranty covers the entire roof system including accessories and insulation. The main downfall to this warranty is that it only covers material defects. It has a maximum coverage period of 20 years and includes replacement materials as well as the cost of material to correct a possible problem. What you need to know in terms of this warranty is that only GAF Authorized, Master and Master Select Low-Slope Factory Certified Contractors are able to offer this warranty to its customers. And yes, this warranty is transferable to the next owner of the property, as long as its within the 20 year period.

System Pledge™ Warranty

A step up from the Weather Stopper® Warranty is the System Pledge™ Warranty. Not only does it cover material defects and workmanship errors it also covers the entire roof system. This option has a maximum coverage period of 20-25 years and includes replacement materials and covers the cost of labor to correct a possible defect. Along with the Weather Stopper® this warranty is only offered by GAF Authorized, Master & Master Select Contractors and is transferable.

EverGuard® Diamond Pledge™ NDL Roof Guarantee

The Diamond Pledge™ NDL (No Dollar Limit) Warranty is considered the best of the best when it comes to commercial roof warranties. This is because it not only covers matieral defects and workmanship errors for the entire roof system, but it also provides an unlimited dollar amount for covered repairs. Its maximum coverage period tops the others at up to 35 years (with select systems) and qualifies for the WellRoof® extension program where you can add up to 6.25 years on your warranty coverage. This warranty is transferable and is only offered by GAF Master & Master Select Contractors.

To find more on what is offered, the restrictions, ways to maintain your warrantied roof as well as learn about the WellRoof® Extension Program, visit GAF’s commercial roofing webpage. If you are interested in warranty information for your residential home, click here. 

Looking for a contractor certified who can offer these warranties?

master certifiedIf you are in the Puget Sound region of Washington State and are in need of roofing services contact Chase Construction North West, Inc. today. We are Master™ certified contractor through GAF. We have been providing our region with expert commercial and residential roofing services for over 13 years. We provide services in Seattle, Tacoma, Federal Way, Renton, Auburn and all of the surrounding cities.

Fill out our free estimate form or call us today at 253-445-8950. You can also visit GAF.com  and look for GAF Factory Certified Roofing Contractors in your area.

Residential & Commercial Roofing Bonney Lake

Chase NW-Your Premier Bonney Lake Roofing Contractor

At Chase Construction Northwest, Inc. we just love serving the roofing needs of Bonney Lake and the Pacific Northwest. Our owner Melanie Beattie is enthusiastic about the fantastic service we provide our customers and has made it her life mission to provide the best customer service and roofing system in the Puget Sound. When you hire us you will be working with an expert that has over 25 years of experience in the roofing industry. Now that’s peace of mind!


About Chase Construction Northwest, Inc.

Chase NW is a premier Bonney Lake roofing contractor. We have been serving the local community for nearly 15 years. We are also big on giving back to our community and investing into global missions through our charitable organization Chase Coffee. Our goal is to provide the very best residential and commercial roofing services in Bonney Lake at an affordable price. This business model and our drive for excellence has helped us build an incredible customer referral base that keeps our company growing and remain healthy. We are also a verified contractor through Reliable Roofing Contractors of Washington. When you or a friend needs our service simply give us a call at 253-445-8950 or fill out our free estimate form and we will be out in a jiffy.

Services We Offer As Roofers In Bonney Lake, WA

We specialize in all types of roofing! Another character that sets us apart is the fact that we do not subcontract our work out to other contractors. We have factory trained and certified roofing contractors that have worked with us for many years and hands down install the best system around. Whether you need a roof repair on your home or a complete re-roof on a large commercial building we have the expertise and experience you can trust. Here is a list of the roofing services we offer in Bonney Lake.

Residential Re-Roof

Commercial Re-Roof

New Construction Residential & Commercial

Residential & Commercial Roof Repair 

Skylights & Solartubes

Schedule A Free No Obligation Roofing Estimate Today

To schedule your free no obligation estimate simply call 253-445-8950 or fill out our free estimate form. We will respond quickly and provide an informative consultation concerning your roof and how much life it has left. Thanks for visiting our website and have a great day!