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 Protected by Acrylic Roof Coatings Provide Great Benefits

Posted by Nicole Gale on Thu, Jul 30, 2015 @ 11:00 AM


Spray Polyurethane Foam or SPF roofing is excellent for restoring your current roof or as a new construction project. The foam used in these systems must be coated with a roof coating in order to provide the SPF roof with adequate protection needed from deterioration caused by the sun’s Ultra Violet (UV) radiation and water infiltration. 

Learn about the  Benefits of Coating  an SPF Roof  Download our FREE GuideAcrylic roof coatings are among the most popular in the roofing industry for protecting SPF because of their strength and ability to adhere to the spray foam. These coatings have a long history of success (check out our SPF Case Histories), high quality ingredients, and fire retardants that work together to construct a seamless, durable, and flexible membrane with excellent resistance to UV destruction and water penetration. 

When you combine SPF roofing with an acrylic roof coating system, you gain the strength and protection needed for the roof to function properly, as well as, excellent insulation, custom slope and superior reflectivity. These systems provide customizable levels of insulation to reduce heat loss and gain to the building, allowing your building to remain a consistent indoor temperature with less need to heat or cool the building. Custom slope can be created with the spray polyurethane foam for improved proper water drainage and ponded water protection.  High solar reflectance and thermal emittance properties gained from the acrylic roof coatings ability to reflect the sun’s heat away from the rooftop, lowers energy cooling costs and contributes to the reduction of heat transfer to the inside of the building, allowing the building to remain cooler on a hot day.

National Coatings has several SPF roofing systems coupled with acrylic roof coatings to provide all the benefits mentioned above. With over 33 years of proven performance, the AcryShield SPF Roofing Systems can decrease your energy consumption and costs. This is a huge reduction in cost based off California’s energy-efficiency movement - Flex Your Power© which states “A 30% reduction in energy consumption can lower operating costs by $25,000 a year for every 50,000 square feet of office space.” If you are interested in more information on SPF Roofing or the Benefits of Coating an SPF Roof, download our FREE Guide.   

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Tags: SPF Roof Coating, Spray Foam Coating, spray applied roofing, acrylic roof coating

Improve Insulation, Avoid a Tear-off and Lower Energy Costs with a Spray Polyurethane Foam Coating System

Posted by Nicole Gale on Tue, May 26, 2015 @ 11:30 AM


Spray polyurethane foam coating systems or SPF coating systems can greatly improve your buildings insulation and energy consumption while avoiding a costly roof replacement.

Improved Insulation
Download our  FREE Guide on SPF Roof  Coating Systems Spray polyurethane foam coating systems are excellent at insulating your building and sealing off airflow from escaping or entering the building. These systems are sprayed directly onto your rooftop (either as new construction or roof restoration) filling all cracks and openings on your roof to seal and prevent any heat loss to the building. SPF systems are excellent at resisting heat transfer with high R-values, reducing your energy consumption and allow your building to remain warmer in the winter and cooler in the summer.

Lower Energy Costs
There are a couple ways these systems allow you to save money on energy costs. The first is insulation. A building that is well insulated can save up to 20% of heating and cooling costs according to Energy Star. The second is reflectivity. Spray polyurethane foam coating systems should have a highly reflective roof coating to not only protect the foam from early degradation but also to reflect a majority of the sun’s heat away from the building, back into the atmosphere. This allows the building to remain cooler, absorbing a very minimal amount of heat on a hot, sunny day. Reducing the load on HVAC and heating systems while still maintaining a comfortable environment inside the building can drastically lower your energy costs.

Avoid Costly Roof Replacement
These systems are excellent for new construction but also for restoring and improving the condition of your existing roof to new. Spray polyurethane foam coating systems can be applied directly over aged, leaking, and failing asphalt, BUR, concrete, metal, modified bitumen, and wood substrates. They provide additional waterproofing layers and provide custom slope in necessary areas to eliminate drainage problems and ponded water issues. Your business stays open during construction as it is not necessary to tear-off or replace your existing roof. This will save a substantial amount of installation time and money, as well as, allowing business production to continue as usual with no loss of revenue.

National Coatings offers several different spray polyurethane foam coating systems to meet your buildings particular needs. These systems can range from ZERO VOC’s, extra foot traffic protection, ultra-high reflectance and more. Download our FREE SPF Roofing Brochure or contact us for more information.

Tags: SPF Roof Coating, Spray Foam Coating, roof insulation