A variety of roof coatings are available in North America today. These high-performance coatings are not a cure-all that will correct every roofing problem, or effectively prolong the life of every existing roof system. But when properly designed, applied and maintained, they are the ticket to sustaining an existing roofing asset and benefiting your bottom line.

Consider the benefits:

Increased roof life. Workers can repair, coat, and restore moderately aged roofs to a maintainable condition. They can even restore roofs that have been leaking if the amount of wet insulation is relatively low and they can identify, remove, and patch the affected areas before coating.

With careful monitoring and timely performance of remedial work, the roof might be a candidate for subsequent re-coating projects to further extend the roof’s life. Finally, reflective coatings can slow the effects of ultraviolet (UV) and heat aging of roofing membranes by reducing rooftop temperatures.

Reduced construction debris. Recent estimates indicate roofing projects generate 40% of construction waste entering landfills. When workers apply a roof coating at the proper time in a roof’s life cycle, it can delay the need for costly replacement, as well as prevent the need to tear off and dispose of the old insulation and roofing membrane.

Reduced energy use. The reflective and emissive properties of many coatings result in decreased roof temperatures and energy use requirements during daytime hours, reducing the load on a building’s HVAC system.

Aesthetic improvements. Rather than replacing an unsightly aging roof for aesthetic purposes, managers can improve the appearance of a roof that is visible from the ground or adjacent buildings through the application of a coating.

Microclimate management. Water can pool on areas of many low-slope roofs. In these localized areas, many types of roofing membranes are prone to premature deterioration and eventual leakage. Similarly, roofs on which the membrane is exposed to contaminants can experience localized failure.

Using carefully selected coating products and applications in these affected areas can prolong the life of the entire roof system. Without implementing this sustainable approach, spot deterioration can lead to wet insulation, leaks, structural deterioration, and the need for premature replacement.

Green Roofing and Waterproofing has been saving businesses thousands of dollars by sustaining and restoring their roofs with reflective, long-lasting, liquid-applied membrane coating systems. We recommend solvent-based elastomeric coating systems, which in our opinion perform better than their water-based counterparts. Often these systems will come with a 10 or 15-year warranty.