National Coatings Blog

Acrylic Roof Coatings Restore Commercial Roofing Systems

Posted by Nicole Gale on Thu, May 21, 2015 @ 11:30 AM

North-Garner-Google-Earth-ImageSince the mid-1950’s acrylic technology advanced to the capability of being able to transform into a waterborne emulsion. This was huge for creating extremely durable and protective paint use on the outside of homes and building and it has since become a resilient and long-lasting product for the roof coating industry.

Acrylic material has excellent weathering properties and is extremely resistant to ultraviolet radiation from the sunlight. This makes acrylic roof coatings very durable and protective in nature. Sunlight or the sun’s heat is the leading cause of roof degradation and causes the greatest amount of damage to the roofs surface compared to any other element the roof encounters. The acrylic ingredient in roof coatings provides the building owner with the greatest protection, durability and strength to the roof, protecting the remainder of the building from water penetration, damage and more. 

Click meCommercial roofing systems that are aged and deteriorating benefit greatly from an acrylic roof coating system as they are able to renew and restore their roof to new without tearing off the existing roof substrate. The acrylic roof coatings are applied directly on top of the current roof with a thickness of 15 to 30 mils. (Average exterior house paint is roughly 3 mils, so you can see the difference in strength, durability and protection from a roof coating compared to paint.) These roof coatings are liquid applied and form the roofing membrane on site with no seams.  The acrylic roof coatings adhere to, waterproof and protect anything on top of the particular roof it is install onto. Not only do you, as the building owner, benefit from a custom tailored roofing system, meeting each and every need your particular roof may have, you also benefit from eliminating field or factory seams and mechanically fastened areas, both of which experience a lot of failure and aging issues as the flexibility of the roof membrane deteriorates, creating a perfect avenue for water penetration. 

Acrylic roof coatings provide excellent "cool roof" capabilities, as the acrylic polymers are transparent to UV radiation, prohibiting them from absorbing the sun’s destructive heat. These coatings can range from standard reflectivity to highly reflective coatings. The durablilty of the coatings allow them to remain flexible, constantly permitting the roof to expand and contract with the building during temperature fluctuations without cracking, split or alligorating.

If you would like additional information on our acrylic roof coatings for restoring your commercial roofing system, download our FREE Product and Application Brochure or Contact one of our Roofing Professionals Today!

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Tags: Roof Coating Systems, Reflective Coatings, acrylic roof coating

High Grade AcryShield Roof Coatings Provide Excellent Ponded Water Resistance

Posted by Nicole Gale on Tue, Mar 24, 2015 @ 11:30 AM

img_0185Ponded water resistance is the ability a roof coating can remain bonded and adhered to the roof substrate after being submersed in water for an extended period of time. The National Roofing Contractors Association (NRCA) specifically defines roof ponding as "water that remains on a roof surface longer than 48 hours after the termination of the most recent rain event". This becomes extremely important when puddles form on the rooftop due to poor slope or drainage issues. Without proper ponded water protection, your roof coating will begin blistering and peeling, causing leaks and corrosion to occur, leading to untimely roof failure.

Ponded water protection should be a necessary benefit included in all roof coatings; however, inferior coatings often cannot perform to that level, causing delamination and adhesion issues when the coating is submerged in water. Ponded water can occur on any roof due to poor design or when drains are clogged and are not able to function properly. This is rather common, especially when semi-annual roof maintenance inspections are postponed or skipped completely. Many roofs experience slopes that do not lead to a drain; this causes rainwater to constantly pool together in a specific location each time it rains, only being alleviated once the water begins to evaporate and dry up over time. 

Learn about the  Benefits of Coating  an SPF Roof  Download our FREE GuideIf you currently have a roof coating installed on your roof, you can determine if the coating has ponded water protection by evaluating an area that has be submerged under water for 1 or 2 days. Press on the area with your thumb and see if the coating is still adhered to the substrate below. If proper adhesion is not occurring, you need to address the issue and solve it immediately. You will need to select a roof coating that can provide proper ponded water protection and you may want to look into an AcryShield SPF Roofing System that allows you to create a new custom slope on the roof that will lead to a drain using spray polyurethane foam – click here for more information.

If you are in search of a new roof coating system for your building and want to determine if the coating has resistance to ponded water, it is best to evaluate the products technical data sheet, test on your roof for actual performance and get referrals for products that claim to provide this protection.

National Coatings has a full line of AcryShield roof coatings that provide excellent waterproofing, superior adhesion, and resistance to ponded water for almost any roofing substrate including: Asphalt, BUR, Mod Bit, TPO, PVC, EPDM, Hypalon®, Metal, SPF and Concrete roofing.

For more information on our base coats or roofing systems with ponded water resistance, download our FREE Product Brochure!

Download our FREE Benefits Brochure For Detailed Information On Our Systems & Coatings

Tags: Ponding Water Resistance, acrylic roof coating, adhesion