National Coatings Blog

What Flat Roof Materials Do I Need to Coat and Preserve my TPO Roof?

Posted by Nicole Gale on Thu, Jun 18, 2015 @ 11:30 AM

The AcryShield Roof Management (ARM) System is ideal for preserving your TPO roof, while avoiding a roof replacement. The ARM System for TPO was designed to eliminate any priming or etching rinse stages; therefore, saving the contractor time and the building owner money.


When preserving a TPO roof, you will need these 3 flat roof materials:

  1. AcryShield A502 Base Coat – The A502 was specifically formulated for tenaciously adhering directly to TPO. This roof coating allows you to eliminate priming the entire roof substrate before installation begins.
  2. Customized Local Reinforcement – High-tensile strength polyester reinforcing fabrics add superior strength and long term durability to localized areas on the roof that need extra care.
  3. AcryShield Top Coat – The AcryShield top coat you choose can range from our standard elastomeric coating, which provides longevity and brightness with superior dirt pick-up resistance and protection against biological attach, such as algae; to our high performance top coats, that specialize in extra foot traffic and physical abuse protection, ultra high reflectance or fast setting coatings to resist early wash-off associated with light rain and heavy dew. Most these coatings also exceed all ASTM D6083 requirements and also offer excellent tensile strength, elongation and wet adhesion. Contact us for more information 800-423-9557.

Need Help? Contact a Roofing  Professional  Zero ObligationInstalling an ARM System to lengthen the life of your existing TPO roof is non-disruptive to the work environment and provides ease of application with only 3 installation steps. Depending on the top coat chosen for your project, you can get a roofing system with ZERO VOC’s, otherwise, all the ARM Systems for TPO contain ultra low VOC’s which means there are no harmful or strong odors. Installation is spray applied, creating a monolithic roofing membrane, which is custom tailored to your roofs particular needs and there is no disruptive drilling, nailing or seam welding involved. Your building is able to remain open for business as usual!

When choosing an AcryShield Roof Management System, you are selecting flat roof materials that will protect and extend the lifespan of your aged, leaking TPO roof. You get superior durability and performance with our AcryShield base and top coats with an added benefit of gaining a highly reflective roof substrate which allows you to lower energy usage and consumption – saving you money. The ARM System also lowers roof maintenance costs and increases weatherproofing benefits that allow you to lower the total life-cycle costs of your building.

For more information on extending the lifespan of your existing TPO roof, download our FREE Single-Ply Roofing Brochure! Or contact one of our Roofing Professionals; we are here to help you!

LEARN MORE ABOUT OUR SINGLE-PLY RESTORATION SYSTEMS Offering DIRECT Adhesion to most Single-Ply Substrates - Eliminating Costly & Timely Installation Steps

Tags: Flat Roof Materials, TPO Roof Coating, TPO Roof, Restore TPO, roof restoration system

A Proven and Successful Solution to TPO Roof Restoration - AcryShield A502

Posted by Nicole Gale on Tue, Apr 07, 2015 @ 11:30 AM

036_copyWhile TPO single ply membrane roofing has been around for over 20 years now in the United States, TPO roof replacement is now in full swing for these systems that were installed originally as their anticipated life span has now reached that point where they need to be replaced. The capital expenditure for this process can be overwhelming. National Coatings (NCC) once again as with other single ply membranes prior to these TPO systems developed a base coat and finish coat for this particular membrane’s chemical make-up. In 2006, NCC developed a base coat with self-priming characteristics that eliminate the need for additional primers or etching rinses while exhibiting a tenacious adhesion for both the TPO membrane and the marriage of the finish coat application. This eliminates the necessary additional steps that other manufacturers require which is an added cost in material as well as labor.  The additional bonus is AcryShield A502 can be applied to failing EPDM (Rubber) roofs as well, without the required primer and/or etching rinses by other manufacturers. This formulation by NCC has allowed them to be the only roof coating manufacturer with industry leading capabilities that successfully adhere directly to aged and failing TPO single ply membranes with a proven and verifiable 9-year track record.

The AcryShield A502 base coat has withstood the test of time and has proven to the roofing industry to be a superior choice for maintaining and restoring failing TPO roof membranes. (Check out our TPO roof restoration case studies.) TPO has been known to be difficult to adhere a coatings application directly to its surface because of the way the TPO naturally ages and becomes brittle. This has caused many roofing contractors to avoid a TPO roof restoration project and suggest a roof replacement. 

National Coatings however, encourages roof restoration as it saves times, money and the environment, asGet More Info on Direct Adhesion to Aged &  Failing EPDM, TPO & Hypalon well as, allows you to lengthen the life span of your existing roof without any business closure during installation. The AcryShield A502 base coat removes the need for specialty primers as previously stated in order to achieve an adequate bond to the TPO.

This base coat provides environmentally friendly benefits as it not only allows you to restore your current aged and failing TPO roof, elevating already overfilled landfills, it also contains minimal volatile organic content (VOC). AcryShield A502 contains only 0.5 VOC’s grams per liter – according to the International Green Construction Code (IGCC) the mandated maximum allowed is 50 VOC’s grams per liter. The removal of most of these dangerous and strong smelling chemicals minimizes installation disruptions to indoor air quality that normally occur with other primers, and etching rinse fumes that can be drawn into the buildings HVAC and fresh air intakes a top the roof assembly allowing your employees and clients to conduct business as usual during the restoration process. 

Restoring your aged TPO roof is easier, quicker, and less invasive and provides more cost savings benefits than a traditional roof tear off could ever offer. For more information on our AcryShield A502, download our FREE Guide on Coating Over Aged Single-Plies.

Learn More About Coating Over  Aged  Single-Plies

Tags: Single-Ply Roof Coatings, TPO Roof, Restore TPO, roof restoration system

Can an Elastomeric Coating Save my Leaking TPO Roof?

Posted by Nicole Gale on Tue, Jan 20, 2015 @ 12:00 PM

AcryPly_Acrylic_Diagram_-_502TPO_2Elastomeric coating systems are ideal for restoring and renewing aged and failing TPO roofs. These roof coating systems allow you to avoid a costly and timely roof tear off, while achieving a highly reflective, watertight, energy efficient roof. 

TPO Roofing
TPO roofing is originally installed by welding the seams of the rolled out TPO to one another. These seams can cause roof failures and water penetration if the installation was not done correctly and/or after these seams have weathered.  Over time, the seams lose their ability to expand and contract with the rest of the roof causing rips and tears, eventually leading to a leaking roof - prompting building owners to look for a cost-effective solution.

Solution for Restoring TPO
Although TPO has been notorious for being difficult to coat over, the AcryShield A502 adheres directly to TPO with tenacious adhesion and extremely low levels of harmful VOC solvents. This elastomeric coating is ideal for TPO roofing because it eliminates the use of a separate primer prior to the installation of a base coat. Most roof coating manufacturers require a primer or etching rinse to be applied prior to a base coat. The application of primers and etching rinses generally entail the application, the chemical wash-off, and the capturing of the harmful chemicals before they run off into streets and streams. This additional primer step increases cost and lengthens the installation time frame. Using the AcryShield A502 base coat, contractors can quickly install your new roof coating system with direct adhesion to the TPO roof – saving the building owner time and money.

FREE GUIDE: Single-Ply Roof Coating Systems

Two TPO Elastomeric Roof Coating Systems
We offer two elastomeric coating systems that are ideal for TPO roofing. The first is the AcryPly Roofing System; it restores your extremely weathered and aged TPO roof with the use of polyester reinforcing fabric across the entire rooftop to create an extremely durable and strong roof. The second is the AcryShield Roof Management System (ARM), it renews your TPO roof to new when it is in its initial stages of decomposition and only needs local reinforcement in necessary areas. Both systems provide you with the following benefits:

  • Eliminates a costly roof tear-off
  • Non-intrusive application process
  • Energy Efficiency and Cost Savings
  • Highly Reflective Cool Roof System
  • Renewable and Sustainable
  • Reduce Roof Maintenance
  • Seamless
  • Environmentally Friendly – No Harmful Primers/Etching Rinse and Ultra Low VOCs

For additional information on our TPO AcryPly Roofing System, download our free brochure or for information on our TPO AcryShield Roof Management System, download that brochure, here.

Get More Info on Direct Adhesion to Aged &  Failing EPDM, TPO & Hypalon  

Tags: Single-Ply Roof Coatings, Coating directly over TPO, TPO Roof