National Coatings Blog

SPF Roofing Provides Effective Resistance to Heat Flow Transfer

Posted by Nicole Gale on Thu, Sep 17, 2015 @ 11:00 AM

SPF Roofing

As summer is coming to an end, heat flow from the hot outdoor temperatures will decrease; however, as the colder months are approaching, heat flow from the heated indoor space will begin moving outside. A well-insulated roof system can provide your commercial building with an effective heat transfer barrier. SPF Roofing Systems allow you to reduce cost and energy associated with heating a building during the winter and cooling a building during the summer due to their high R-values when compared with other roofing systems. 

When a roofing system has “high R-values” that simply means the systems insulated materials have been measured to determine whether the material provides resistance to heat flow. When the testing shows the R-values are high, you know the roofing system has the ability to provide excellent insulation to your building. SPF (Spray Polyurethane Foam) Roofing Systems provide a barrier to prohibit airflow from escaping or entering the building based on their material and application. These systems are spray applied with a two-part system of polymeric isocyanate “A-Component” and a water/Enovate 3000 blown “B-Component” to create a monolithic, closed cell foam. The foam fills and seals any cracks, voids or openings on the roof, preventing heat transfer and delivering excellent insulation and waterproofing to the building.

AcryShield SPF Roof DiagramThe AcryShield® SPF Roofing Systems are excellent for new construction and restoring and improving the condition of an existing roof. Since these systems are spray applied, they can be installed over aged roofing materials such as BUR, asphalt, concrete, metal, Mod Bit, and wood substrates. The spray polyurethane foam (SPF) is applied directly over the roof deck or existing roof, a layer of AcryShield® base coat is then sprayed on top of the SPF, delivering an additional foundation layer of waterproofing with superior adhesion while providing resistance to ponded water. Next, an AcryShield® topcoat is applied, offering outstanding UV protection, longevity and brightness. These topcoats are formulated to provide superior resistance to dirt pick-up from air borne contaminants which allows the coating to remain highly reflective for the life of the warranty. Finally, a layer of RoofGuard Granules is embedded into the topcoat for appearance, impact and foot traffic protection. This improves traction across the rooftop while providing enhanced durability.


For more information on improving your buildings’ insulation, waterproofing and more, download our FREE Guide on SPF Roofing Systems.

Download our  FREE Guide on SPF Roof  Coating Systems

Tags: AcryShield SPF Roofing System, SPF Roof Coating, Roofing Insulation, heat transfer, roof insulation

SPF Roofing is Ideal for Extreme Wind Uplift Protection and Waterproofing

Posted by Nicole Gale on Tue, Mar 03, 2015 @ 11:30 AM

hurricane-season-hurricaneHurricane season is quickly approaching beginning May 15th in the Eastern Pacific and June 1st in the Atlantic lasting through the end of November. For low sloped, commercial buildings in these regions it is important and necessary to install a roofing system that can withstand extreme wind uplift while providing waterproofing capabilities during hurricane season to guarantee protection and coverage to your building and the assets inside. 

Spray polyurethane foam roofing systems or SPF roofing systems can do just that! They have excellent waterproofing capabilities and provide wind uplift protection. The SPF roof systems are sustainable and quick to install, as they are spray applied directly over your existing roof, allowing you to restore and renew your roof rather than replace it.

Waterproofing Capabilities

Download our  FREE Guide on SPF Roof  Coating SystemsThe spray application allows a custom slope to be created where necessary to improve and correct any water drainage and ponded water issues. Spraying each layer of the roofing system directly on the roof top also provides a 100% seamless and monolithic roofing system ensuring excellent waterproofing protection across the entire roof and especially in hard to reach and seal areas such as around rooftop equipment, skylights, pipes, drains and other items. Seamless roof membranes are flexible with an even amount of tension across the entire roof field. This is unlike systems with seams (such as single-plies), which experience a lot of tension at the joints and seams causing tears and rips to occur over time – eventually leading to water penetration into the roof deck.

Excellent Wind Uplift Protection:

SPF roof coating systems are composed of many closed-cells, which provide durable structural integrity to the roof and excellent adhesion to the roof deck and walls it is sprayed onto. These systems have such great adhesion capabilities they have been proven to withstand recent hurricanes such as Katrina and Rita and scored above average scores when tested in hurricane conditions by the National Institute of Standards and Technology (NIST).

National Coatings has a large sales force in Texas and the Gulf State Region to provide you with assistance and help with any questions or needs you may have. Contact us to talk to one of our Professional Roofing Representatives in your area today!

Tags: AcryShield SPF Roofing System, SPF Roof Coatings, wind uplift protection

Spray Foam Coatings for Application over SPF Roofing

Posted by Nicole Gale on Thu, Feb 05, 2015 @ 11:30 AM

Spray Polyurethane Foam (SPF) roofing provides excellent insulation and custom slope to avoid ponded water issues and improve water flow to drainage. SPF roofing systems require a roof coating to be applied over the foam in order to cover and protect the spray polyurethane foam from deteriorating due to the sun’s harmful UV rays. 

Learn about the  Benefits of Coating  an SPF Roof  Download our FREE GuideNational Coatings’ offers several different types of spray foam coatings that have the ability to block and reflect essentially all of the sun’s damaging rays always from the roof top, protecting the SPF roofing system and building below.  These coatings are ideal for a newly constructed SPF roof, as well as, a SPF roof that needs a re-coat or restoration in order to prolong its roof life and lower roof maintenance costs. Our spray foam coatings all contain low levels of VOC’s, provide energy cost savings and create minimal disruption to the tenants and occupants inside the building during construction. These coatings have been successfully used on spray foam roofing systems for over 30 years, providing renewable and sustainable systems that are seamless and have outstanding waterproofing capabilities. 

Need Help? Contact a Roofing  Professional  Zero ObligationOur spray foam coatings range from topcoats, base costs, quickset coatings and specialty coatings. Our topcoats are highly reflective, providing longevity and brightness with superior dirt pick up resistance and protection against biological attach such as algae. These topcoats exceed all ASTM D6083 requirements, offering excellent tensile strength, elongation and wet adhesion.  The AcryShield spray foam base coats are engineered to provide optimum and superior adhesion to SPF while adding additional waterproofing to your roofing system. Our quickset spray foam coatings come in base and top coats and are ideal for resisting early wash-off associated with heavy dew and light rain. We also have a range of specialty coatings that offer different advantages and protection to your spray foam roof including: low temperature flexibility, extra foot traffic and physical abuse protection, ultra high reflectance and coating for buildings and rooms where there is a reverse vapor drive (cold storage, food packing plants, etc…). 

Our spray foam roofing brochure can provide you with additional information on each product specifically and more details regarding our SPF roofing systems, warranty information and spray foam coating colors. Learn more about National Coatings and our offerings by download our SPF Roofing Brochure today, it’s FREE!


Tags: AcryShield SPF Roofing System, SPF Roof Coating, Spray Foam Coating, Protecting a SPF Roof