Homes and commercial real estate investors should keep up with maintenance as part of their property ownership. If properly maintained roof system on a building with a flat, low slope or metal roof can last for several decades. Applying a coating to your roof is an excellent way to maintain it and give it an additional 10+ years of life.  Your flat, low slope, or metal roof will be well protected from water, UV rays, and storm damage with a roof coating. There are numerous types of roof coating to choose from. There are three types of roof coating: Acrylic Roof coating, Silicon Roof Coating, And Polyurethane Roof Coatings. To choose the most appropriate coating types for your roof, you have to consider the pros and cons of various coatings. Here are the there is strengths and weakness of various coatings.

Acrylic Roof coating

The versatility of acrylic coating is one of their key advantages. They provide a wide range of protection for almost any roof in every climate, making them an excellent option for regions where a roof is subjected to all four senses. The strengths and weaknesses of Acrylic Roof Coating are listed below.

Strength of Acrylic roof coating

  • UV resistant
  • Highly reflective
  • Easy to work with acrylic roof coating
  • Improve energy efficiency
  • Offer an excellent balance of performance and cost

Weakness of acrylic roof coating

  • May not perform well in ponding water situations
  • Should be applied at 50 degrees F or above
  • Limited waterproofing
  • They require primer
  • Require periodic maintance
  • Will lose mil thickness with weathering

Silicon Roof Coating

Water-repellent or waterproof silicone roof coating. Silicon coatings may be used for primers in some applications. The strengths and weaknesses of Silicon Roof Coating are listed below.

Strength of Silicon Roof coating

  • Resistant to weather and corrosion
  • Do not get brittle or hard
  • It is highly durable
  • Excellent UV resistance
  • Low maintance
  • Silicon COating is easy to apply
  • Good ponding water situations

Weakness of Silicon Roof coating

  • More expensive
  • Limited color options
  • Repair can be challenging
  • Hard to adhere to other roofing products
  • Silicon coating is better suited for flat or low-slop roofs
  • Lose reflectivity over time

Polyurethane Roof Coatings

A common option for protecting and extending the life of flat or low-slope roofs is polyurethane roof coatings generally having a variety of advantages and disadvantages. The strengths and weaknesses of polyurethane roof coating are listed below.

Strengths polyurethane roof coasting

  • Keep the roof cool, as it remains clean and white
  • It stays cleaner and more durable
  • Excellent Adhesion properties
  • Remain flexible over time
  • Resistance to ponding water than an acrylic coating

Weakness of Polyurethane roof coating

  • More expensive than an acrylic coating
  • Can have a stronger odor than other roof-coating
  • Limited color options
  • Longer curing time
  • Proper installation of polyurethane coasting requires skills and expertise
  • Recoat may be necessary
  • Can emit strong odors and vapors
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Author: William Sessions

William Sessions started a roofing business in 2018 with a mission to create high-quality roofs for Winston-Salem and surrounding areas. He did jobs for Safeco, Liberty Mutual, All-State, and Nationwide for two years. In that experience, he learned how to properly inspect for Hail, Wind and other damages to shingles that would impact insurance claims. After that, he started his own family business and proudly served roofing service in North Carolina. He leverages his roofing knowledge and provides useful insights through blogs on