Roof coatings

Why Choose Silicone Roof Coatings?

February 1, 2021
Trust the versatility and reliability of silicone-based coatings, acknowledged by ASTM for their wide range of valuable applications. Rely on their effectiveness for your diverse needs.

There are many choices

of roof coatings on the market today, with silicone ranking as a premium option for unrivaled renewal and restoration of just about any aging flat roof. In fact, KARNAK’s silicone coating system (670HS Karna-Sil™ Ultra) features advanced silicone chemistry that delivers assurance of long-term protection and exceeds the performance of other roof coatings.

Karnak 670HS Karna-Sil™.

is a white, low-VOC single component, moisture curing silicone roof coating that produces a durable elastic coating with exceptional weathering and water resistance characteristics.

The cured silicone coating provides a proven solution for renewing weathered roofs and can be applied to virtually any existing roof system to create a seamless water-resistant membrane for superior protection against ponding water, UV light and severe weather.

Warranted options are available

by speaking with a KARNAK Technical Sales Representative. The board of this Sage Condominium community in Florida were thrilled with their KARNAK restoration that came with a 20-year warranty. They were able to have their roof restoration completed with very little disruption and at a much lower cost than a traditional roof replacement.

670HS Karna-Sil Ultra is designed for

application over low-sloped “flat” asphalt roofs, smooth or granule SBS and APP modified bitumen membranes roofs, EPDM, aged TPO, PVC and Hypalon®, concrete, wood, fiberglass, metal, wood, Spray Polyurethane Foam roofing and over most existing roof coatings.  Some surfaces require the use of 180 Karna-Sil Epoxy Primer.

Benefits of the system include:

  • Silicone is permanent and will not degrade, chalk or crack under harsh UV rays.
  • 670HS Karna-Sil Ultra is NSF Rated for potable rainwater catchment systems.
  • The cured silicone film forms a seamless membrane that creates a smooth surface offering excellent resistance to mold, mildew and staining that also withstands permanent ponding water without softening.

670HS Karna-Sil Ultra is ENERGY STAR-Rated,

helping buildings qualify for LEED Certification.  When properly installed, the coating may help keep interior building temperatures cooler and potentially reduce building operating costs.

Learn more about 670 HS Karna-Sil
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