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The Last Roof Coating You'll Ever Need.

GacoRoof 100% Silicone Roof Coating is designed as a protective coating to seal and repair existing roofs and permanently protect against leaks, permanent ponding water, and the damaging effects of severe weather.

GacoRoof is the only coating on the market that stands up to permanent ponding water without bubbling, peeling or breaking down. It will stay flexible and maintain adhesion, even under permanent ponding water or snow pack.

And year after year, GacoRoof will not require a recoat. Do it once and you're done.

Peace of Mind for a Lifetime.

All other roof coatings, including acrylics, urethanes, asphalt and Hypalon® soften under the stress of ponding water. GacoRoof's unique silicone chemistry gives your roof an advantage over the elements.

  • Outperforms and outlasts all other roof coatings
  • Unaffected by harsh UV rays and severe weather
  • Withstands permanent ponding water without softening, bubbling or peeling from the substrate
  • Excellent resistance to mold, mildew and staining
  • Adheres to a multitude of substrates, reducing the amount of tear-offs

GacoRoof has you Covered.

If you're thinking about replacing your aging roof, think again. Renew your weathered roof with GacoRoof. It can be applied to virtually any surface, including flat roofs, to create a seamless membrane that seals and protects against the elements. GacoRoof is available in nine colors to enhance the aesthetics of any roof and any project. We also offer a line of accessories to complete your GacoRoof!

Available Standard Colors*
GR1600 GR1628 GR1626
White Gray Green

GacoRoof Grey detail

  GR1670 GR1671 GR1672
Light Tan Rustic Medium Blue

GR1673 GR1674 GR1675
Black Brown Red

All GacoRoof Colors are available in 5 Gallon pails. White and Gray available in 1 and 5 gallons.
*Actual sample colors may vary slightly due to computer monitor settings. When product is applied, color may also be affected by application technique, surface texture, and lighting conditions.

Available Accessories
GacoWash Concentrated Cleaner

GacoWash Concentrated Cleaner helps ensure a roof is completely clean and suitable for GacoRoof.


Using an AdhesionTestKit is the best way to verify adhesion of GacoRoof.
E5320 Kit detail E5320 2-Part Epoxy Primer/Filler helps ensure top coat adhesion and may help prevent bleed through on asphalt roofs.

LiquidRoofTape reinforces seams, cracks, roof penetrations and fasteners.

RoofTape is a self-adhesive tape for cracks, seams and edge transitions.
66s detail 66S Reinforcing Polyester Mesh covers seams, joints, fasteners and tears on uneven surfaces.


GacoRoof Colorant is a liquid-silicone alternative to premixed GacoRoof with color. Available in Gray or Mojave Tan.
SF2036 detail SF2036 WalkPad is a Solvent-Free Silicone Walkway System used to create a rooftop walkway for pedestrian maintenance traffic.


To get in touch with a Gaco product expert, use our contact form.

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Here is what you need to get started:

  • 1 gallon of GacoRoof per 50 square feet of roof
  • 9″ roller frame and handle
  • 3/4″ or 1″ nap solvent-resistant roller cover
  • Paddle for mixing (do not shake)
  • Rags and GacoFlex Silicone Solvent for clean-up

Depending on the texture, condition and desired appearance of your roof, you may also need the following:

  • Additional coats (coverage rate may decrease on textured surfaces, and more coating will likely be used on first coat than on additional coats)
  • High-quality, paintable silicone caulk
  • LiquidRoofTape or Gaco RoofTape (for transition areas such as seams or drains)
  • GacoRoof Colorant
How Much Do I Need

To determine how much GacoRoof roof coating you will need for your project, simply enter the size of your roof below.

Roof Size: square feet.