While 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, as 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.