Roofing Coatings

What Are Roof Coatings

Roof coatings are designed for protecting and extending the useful service life of roof assemblies for new construction and more commonly, existing roof coverings, such as BUR, metal, modified bitumen, single ply membranes, and spray polyurethane foam.

Roof coatings are thicker than paint and have a higher solids content. Roof coatings are formulated to protect roofs from the damaging effects of weather and the environment, such as UV light, and excessive water and wind. They are formulated to provide protection for many years and are also extremely elastic; they typically contain a high level of top-quality resin. The high quality resins and the volume of resins introduced during manufacturing allow the coating to maintain its elastic properties throughout its lifecycle. Once cured, these resins form an elastomeric and durable film, which provides an additional measure of waterproofing and allows the roof coating to bridge small cracks and membrane seams found on roofs. Unlike paint, which is typically applied in portions of a gallon per 100 square feet, roof coatings are applied in terms of multiple gallons per 100 square feet. Today, there are various types of roof coatings on the market that can benefit any type of roof.


Types of Roof Coatings

The most common types of roof coatings are acrylic coatings, asphalt coatings, polyurethane coatings, and silicone coatings.

Acrylic Coatings

Acrylic water-based coatings are ideal for high UV environments where a reflective roof is desired. They can be colored, but generally are sold in white, tan, and grey. Many specialized versions are made to be compatible with specific substrates.

Asphalt Coatings

Asphalt coatings are either solvent based “cut backs” or emulsions. They can be black or aluminized. They have the ability to be used in cold and inclement weather. Aluminized coatings are used when a reflective and UV stable asphalt coating is needed.

Polyurethane Coatings

Polyurethane coatings are typically solvent based and come in two main types, aromatic (less UV stable) and aliphatic (very UV stable). Urethanes have good mechanical properties and high abrasion resistance. They are suggested for use in hail prone regions or where a roof is exposed to heavy foot traffic.

Silicone Coatings

Silicone coatings, like acrylic coatings, perform well in high UV environments where a reflective roof is desired. Often silicone is used in locations where rain is a daily occurrence, or if the roof is often wet and experiences excessive amounts of ponded water.


Advantages of Roof Coatings

Reflective roof coatings act as a barrier between your roof and the elements, and many are approved by ENERGY STAR for their proven advantages. These include:

  1. Reduced cooling bills. ENERGY STAR-qualified roof coatings lower your roof’s surface temperature and decrease your home’s interior temperature by an average of seven to 10 degrees. Quality roof coatings reflect damaging ultraviolet and infrared sunlight away from your building, allowing for cooler roof and building temperatures resulting in a reduction in air conditioning energy usage.
  2. Extended roof life. The right roof coating increases your roof’s waterproof quality guarding your roof from harmful sun rays, prevents UV damage, and reflects heat away from the roof’s surface. This increased the longevity of your covering while lowering maintenance expenses.
  3. Useful with a variety of materials. Roof coatings are formulated to adhere to a wide range of roofing surface types, including metal roofs, asphalt roofs, composite roofs, galvanized metal, wood, and other materials.
  4. Avoiding early roof replacement. Small leaks and other minor damage can be repaired before a roof coating is applied. In some cases, you may be able to avoid full-scale replacement of your roof for several years if you utilize the right coating for the job.
  5. Fade resistance: Reflective roof coatings help your roof maintain its color over time, improving the overall look of your home as it ages.
  6. Conserves Cash: Saves up to half the cost of a new roof; project can also be staged over several years for improved cash flow.
  7. Peace Of Mind: Manufacturers’ no-dollar-limit guarantees available up to 20 years.
    Minimal Disruption… installs significantly faster and with considerably less mess than a conventional new roof.
  8. Financial Flexibility: Can often be capitalized or expensed (consult your tax advisor)
    (*Limited by condition of existing roof… must be in moderately good condition.)

 

 

 

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