National Coatings Blog

4 Roof Coating Systems that are Excellent for Restoring and/or Renewing Your TPO Roof

Posted by Nicole Gale on Thu, Oct 19, 2017 @ 08:00 AM


Renewing or restoring your failing TPO roof prolongs the life of your roof, saving you a tremendous amount of money, hassle and time compared to traditional roof replacement and tear-off options. Select from one of the acrylic or silicone roof coating systems below and gain benefits other roofing options cannot provide:

  • 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

TPO Maintenance Systems:

  1. AcryShield TPO Roof Management System (ARM Systems): These systems allow you to renew your TPO roof to new when it is in its initial stages of decomposition and only needs local reinforcement in necessary areas. This system uses advance acrylic technology that can directly adhere to the TPO membrane without a primer or etching rinse. The roof coatings provide a strong, long-lasting, watertight roofing system.
  2. Silicone Roof Coating (SRC) System for Maintenance: These systems renew TPO membranes with custom localized reinforcement and high solids, SRC silicone coatings that offer a one-component, low VOC, moisture-curing coating system.

TPO Restoration Systems:

  1. AcryPly TPO Roof Restoration Systems: These systems restore your extremely weathered and aged TPO roofs with the use of acrylic roof coatings that can directly adhere to the TPO membrane without a primer or etching rinse. This system uses polyester reinforcing fabric, which is embedded in the coating across the entire roof field to create an extremely durable and resilient roof.
  2. Silicone Roof Coating (SRC) System for Restoration: These systems fully restore your aged TPO roof with the use of high solids, SRC silicone coatings, as well as, sprayed polyurethane foam (SPF) for a monolithic, closed cell, watertight membrane with custom insulation and roof slope. Optional brilliant white RoofGuard Granules can also be used to appearance, impact and foot traffic protection, improved traction across the roof surface, and enhanced durability.

For additional information on our TPO Acrylic Roof Systems, download our FREE Full Line Brochure and for information on our TPO Silicone Roof Systems, download our FREE Silicone Brochure.

FREE GUIDE:  Restore Aging Roofs with Silicone


Restore and Renew Aged TPO with a Roof Coating System Offering Direct Adhesion: No Primers, No Etching Rinses

Posted by Nicole Gale on Tue, Oct 17, 2017 @ 08:00 AM

acryply_acrylic_diagram_-_502tpo_2.jpgTPO roofs are initially installed onto a low-sloped roof by rolling large rolls of TPO out across the roof field. These rolls are then attached to each other by welding the seams together to create a watertight membrane. As TPO ages, it begins to weather and fail as all roofing membranes eventually do. Over time, the seams lose their ability to remain flexible; causing rips and tears to occur where it was originally welded, ultimately leading to leaks and other damage to the roof membrane.

Fortunately, these TPO roofs can be restored without a costly roof replacement or tear-off. Historically, it has been very difficult to coat directly over TPO because there were issues with gaining proper adhesion. However, with the creation of the AcryShield A502 acrylic base coat, you are now able to restore and renew TPO membranes without the need for any primers or etching rinses. The AcryShield A502 adheres directly to the TPO, delivering tenacious adhesion to the aged and failing substrate. When this coating is used in a roof maintenance system (such as the AcryShield Roof Management System - ARM) or roof restoration system (such as the AcryPly Roof Restoration System), you are able to restore and renew your aged TPO roof to a brand new, durable, highly reflective roof coating system.

These highly reflective TPO roof coating systems provide excellent waterproofing, energy cost savings, prolonged roof life, lowered roof maintenance costs and they can be renewed every 10 or so years so that you are able to avoid a roof replacement and tear-off indefinitely. For more information on restoring or maintaining your current TPO roof, download one of our FREE Guides: Restoration: AcryPly TPO Roofing System Brochure or Maintenance: ARM TPO Roofing System Brochure.

FREE GUIDE: Single-Ply Roof Coating Systems

AcryShield Quick Set Project Profile - CA Lottery Commission

Posted by Nicole Gale on Thu, Oct 12, 2017 @ 08:00 AM
California Lottery Commission


Size: 177,500 Square Feet
Location: Sacramento, California

Challenge - Severely Deteriorating, Leaking Roof
  • 10 year old failing PVC membrane.
  • Numerous cracks and badly crazed.
  • Over 250 documented leaks.
  • Provide a sustainable roofing system with excellent adhesion and resistance to plasticizer, (a key component in PVC roofing membranes that prevents cracking) migration.

Solution - AcryPly® Restoration System  

  • Seamless, energy efficient roofing system featuring a fully adhered, leak free 120 mil membrane.
  • Evening installation with heavy dew that CA_Lottery_After_2deposited on the roof during the evening was completed using AcryShield Quick Set roof coating.
  • Costly recover or tear-off was not required; repairs and coating were completed at only a fraction of the cost of a recover roof.
  • Substantial energy savings. 

With their new National Coatings AcryPly Cool Roof System, California Lottery Commission has restored a severely leaking PVC roof, avoided spending a substantial amount of money on a tear off and gained energy efficiency by reducing air conditioning costs and the production of greenhouse gases.

"The collaboration for the project with National Coatings was very helpful along the way. The change to the Quick Set product was accomplished on the fly an was a seamless effort due to the intimate association during the life cycle of the project. (Would not have been successful otherwise as the timing was at the very end of the season)."
- Anthony J. Berzinas, Facilities Project Manager at California Lottery Commission


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