National Coatings Blog

A Deeper Look... Restoring EPDM Roofs

Posted by Nicole Gale on Tue, Jul 12, 2022 @ 10:30 AM

Restore EPDM 2In the EPDM images above, an AcryPly System was chosen to restore this rooftop. The acrylic coatings were spray applied directly over the failing EPDM creating a bright white, highly reflective, waterproof surface without seams. This monolithic, acrylic coating system offered this building an environmentally-friendly solution as a roof tear-off and replacement is not necessary and the system can be re-applied years down the road to further avoid a roof tear-off and replacement.

Benefits of an AcryPly System Include:

  • Excellent waterproofing
  • Seamless
  • Reduced Maintenance Costs
  • Extended Roof Life-Span
  • Lowered Life Cycle Costs
  • Lowered Energy Consumption and Costs
  • Improved Occupant Comfort
  • Installation Cost Savings (compared to traditional roof replacement options)
    • Faster Installation
    • No Roof Tear-off or Replacement Stages
    • Less Labor Intensive
  • Renewable and Sustainable

For more information on fully restoring your EPDM or single-ply roof contact us at 800-423-9557.

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The image below is the full rooftop view of the restored EPDM roof using an AcryPly Restoration System.

EPDM After

 

Acrylic Coating Systems Restore Single-Ply Roofs

Posted by Nicole Gale on Thu, Jul 07, 2022 @ 10:30 AM

Restore Singleply w acrylicSingle-Ply membranes are challenging for coatings to adhere to, especially TPO. Most roof coatings require caustic primers, acid etching agents, or high VOC solvents that need to be rinsed off and sometimes collected for disposal, adding additional cost to a roof life extension project. National Coatings fortunately has a quick and easy solution for Single-Ply --- the AcryShield A502 base coat.  A502 allows for direct and tenacious adhesion to Single-Ply membranes without the need for a primer or etching rinse.

A502 was introduced to the roofing industry over 16 years ago after it went through years of intensive research and successful installation - both laboratory and actual in-service field testing. This coating was designed with self-priming characteristics that eliminate the need for primers or etching rinses while exhibiting tenacious adhesion for thermoplastic and thermoset single-ply membranes, such as Hypalon, TPO and EPDM.  Previously, the only primers used for coating these membranes were solvent borne, which required warning labels, had very high VOC (volatile organic content) and required extreme care when applying to prevent fumes from entering the building.  The only other option for coating EPDM was a "prewash" or "rinse-able primer" that had a significant list of warnings associated with its use.

The AcryShield A502 has three inherent advantages over the previously used primers:

  • It is water borne, so there is no concern about flammable solvents, VOC or fumes entering buildings.

  • It replaces both specialty primers for the thermoplastic membranes and the corrosive rinseable primer for EPDM.  Thus there is no need for separate primer/basecoats for different types of roofing membranes.

  • Its VOC is only 0.5 grams per liter. (According to the International Green Construction Code (IGCC) the mandated maximum allowed is 50 VOC’s grams per liter.)

AcryShield A502 has allowed National Coatings to be the only acrylic roof coating manufacturer with industry leading capabilities that successfully adhere directly to aged and failing single-ply membranes with a proven and verifiable 16-year track record. The next time a project calls for coating single-ply membranes, request the AcryShield A502

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AcryShield_ARM_Diagram_eliminated-resized-600

 

 

 

Restoring Single-Ply Roofs using Silicone Coatings

Posted by Nicole Gale on Tue, Jun 21, 2022 @ 10:25 AM
Westgate Header PictureThe SRC Silicone Roof Coating systems provide a "green" approach to coating your roof. These systems contains high solids, low VOC's, while offering a one-component, moisture-curing silicone roof coating system to restore and repair your existing roof.  With its high solids content and absence of hydrocarbon solvents, this coating can be applied in excess of 40 mils in a single coat without blistering, while maintaining maximum adhesion.  
  • Proprietary formulation provides superior coating adhesion
  • Extends the life of your existing roof: concrete, modified bitumen, single-ply, metal roof panel, and smooth BUR
  • Significantly lowers labor and materials costs
  • Seamless systems reduce your ongoing maintenance costs
  • Silicone is durable in extreme weather conditions and moderate ponding water

Preserving Diagram with Silicone-2-1

  • SRC 740 High Solids Solvent Free Silicone Roof Coating is a one-component, moisture curing silicone rubber roof coating system designed for use on existing smooth surface BUR, granulated cap sheet, well adhered acrylic coating, concrete, metal, sprayed-in-place polyurethane foam and various single-ply membrane roofing. The system provides long-term protection because it resists weathering, aging, oxidation, wind-driven sand, rain and snow, the effects of ozone, ultraviolet radiation and the temperature extremes typically found on roofs. With its high solids content and absence of hydrocarbon solvents, SRC 740 can be applied in excess of 40 mils in a single coat without blistering, while maintaining maximum adhesion.

  • SRC 750 Roller Grade High Solids Solvent Free Silicone Roof Coating is a one-component, moisture curing silicone rubber roof coating system designed for use on existing smooth surface BUR, granulated cap sheet, well-adhered acrylic coating, concrete, metal, sprayed-in-place polyurethane foam and various single-ply membrane roofing. The system provides long-term protection because it resists weathering, aging, oxidation, wind-driven sand, rain and snow, the effects of ozone, ultraviolet radiation and the temperature extremes typically found on roofs. With its high solids content and absence of hydrocarbon solvents, SRC 750 can be applied in excess of 70 mils in a single coat without blistering, while maintaining maximum adhesion.

FREE GUIDE:  Restore Aging Roofs with Silicone