National Coatings Blog

SPF Among Top 5 Best Sustainable Roofing Materials

Posted by Nicole Gale on Tue, Jan 17, 2023 @ 12:07 PM

SPF Graphic3Spray Polyurethane Foam or SPF is not new to the roofing industry. SPF has been around for 60 plus years with excellent long-term performance capabilities. Building Enclosure Magazine named SPF one of the top 5 best sustainable roofing materials to consider for your roof. The article states, "No other roofing material has the combination of strength, formability, seamlessness and insulating value provided by spray polyurethane foam."

National Coatings agrees with this statement 100%. Studies have shown the AcryShield® SPF Roofing System has performance properties in year 15 that are equivalent to the initial installation - 15 years later the roof is still providing the same amount of strength, durability, insulation and waterproofing capabilities as it did on day 1! How's that for long-term performance!

Excerpt from Building Enclosure Magazine's 'Top Five Sustainable Materials to Consider for your Roof'

Written by Eric SkoogDownload our FREE Guide on SPF Roof Coating Systems

Polyurethane Foam

For flat roofs, spray polyurethane foam is an excellent option to consider. It consists of two components (resin and polyisocyanurate) joined together with heat and pressure, which react to rise and form a solid surface. Foam has a number of distinct advantages. It is an insulating material, serves as soundproofing, adds rigidity to a structure, is lightweight and very durable. Foam has been used in roofing applications since the 1960s.

Since it is a seamless product, maintenance is fairly simple. A utility knife and a tube of caulk will serve to address most issues that might arise with a foam roof.

Polyurethane foam has one distinct disadvantage-it will break down over time when exposed to the sun. This is overcome by coating the roof with an elastomeric acrylic, silicone or polyurea, all of which block ultraviolet rays from getting at the foam. The coatings can be used to add a variety of colors to the roof system, although the lighter colors tend to add the most to the insulating value of the roof system.

Polyurethane foam can be installed to any thickness in a series of passes called "lifts." This puts insulation on the outside of the building, blocking heat or cold from passing through to the structure beneath, and vice-versa. No other roofing material has the combination of strength, formability, seamlessness and insulating value provided by spray polyurethane foam.

As society becomes more environmentally-conscious, architects and developers are converting to more "green" products for construction purposes. For more information about "green" roofing materials, be sure to reach out to your local roofing expert.

HI Grocery Store Header Backside Picture copyLearn More About AcryShield SPF Roofing Systems

Superior Waterproofing...Sustainable Roofing

There is a roofing system engineered to last the life of your building. AcryShield® SPF Roofing Systems do not degrade like other roofs. The redundant waterproofing from long-lasting sprayed polyurethane foam (SPF roof) and high-performance acrylic roof coating also eliminates UV attack and deterioration. Roof performance properties in year 15 are equivalent to the initial installation. Consider the National Roofing Foundation’s comprehensive SPF sprayed polyurethane foam roof study where Dr. Rene M. Dupuis of Structural Research, Inc. concludes, "The field data…demonstrates that SPF roof systems provide long term performance and sustainability."

Achieve big boosts in your R-value with this fully-adhered, seamless, waterproofing system that has outstanding impact strength. Eliminate the most challenging problem of ponding water by custom tapering your roof as it is applied. All our AcryShield SPF Roofing Systems offer excellent value.

Contact Us We Can Help You TODAY!

Key Benefits:

Outstanding Durability Cuts Your Life-Cycle Costs
describe the image
A SPF roof lasts for decades and may meet Factory Mutual and UL standards.
describe the image
Sustainable-easily renewed for the life of the building.
describe the image
Guaranteed for up to 20 years.
Cool Roof System Slashes Your Energy Costs
describe the image
Reflects the sun’s damaging heat and UV rays.
describe the image
Protects and insulates your building.
describe the image
Reduces energy bills up to 30% with short pay-back periods.
Easy Installation Avoids Costly Disruptions to Your Business
describe the image
Installs over existing roofs avoiding expensive and time-consuming tear-offs.
describe the image
Simplifies roof details and improves waterproofing performance.
describe the image
Self-flashes for a seamless one-inch minimum layer of roofing protection.

Hot Roof, Cool Solution (Spray Foam Insulation)

Posted by Nicole Gale on Tue, Jan 10, 2023 @ 02:00 PM


January 1, 2023

Liberty Dialysis Leeward, Oahu – 2022

This dialysis clinic needed a way to keep cool. Their original plan was to install larger expensive air conditioners and have a higher energy bill. MRC’s solution was to properly insulate the roof from the outside, due to some roadblocks preventing an interior attic insulation application.  The clinic is only closed 1 day a week, so that prevented an interior installation of any kind of insulation, even spray foam because of lingering organic compound odors negatively impacting the condition of immunocompromised sensitive patients.

Existing Roof

The original roof was standing seam metal painted blue. It was a heat sink that telegraphed heat directly into the building and made the existing air conditioners run all day, and the air conditioners were inadequate to keep the interior cool.

Prior to the roof being insulated and coated, the interior floor temperatures would average around 76-77 degrees and sometimes hit 80 degrees during peak hours. After the new roofing solution, the floor temperatures (with portable A/C units OFF) read 69-70 degrees.

Temperatures are approximately 6-7 degrees cooler for the entire building, without the necessity for or installation of any additional mechanical/electrical equipment (tested by RIM Architects).  The new exterior reflective surface coating showed a surface temperature of up to 105°.  This is a thirty-five-degree temperature difference between top roof surface and interior floor surface.

The solution allowed the client to save up to $120k per year on operations by removing temporary A/C units. There were 8-12 units being used at any given time, with each unit costing up to $1,000 per month in electric/utility fees.Download our FREE Guide on SPF Roof Coating Systems

New Roof-Over Design

MRC Roofing created a design build solution.  MRC installed a roofing system with an R-Value of 20 which included 2.5” rigid and primed insulation boards from Carlisle SynTec.  The rigid boards were precut/fluted at the shop to fit directly over the existing standing seam metal roof panels.

The rigid insulation boards lay flush and were adhered to the roof with DuPont™ Insta Stik™ Quik Set (single component urethane) and stainless steel fasteners, followed by 1” of three-pound spray applied polyurethane foam by Henry and 38 mils of white acrylic coating manufactured by National Coatings, a Henry Company.

Design Build

MRC Roofing’s Michael (Red) Coleman design build was approved by RIM Architects. This roofing system is not only insulating, but also a seamless waterproof barrier designed by a seasoned contractor.  Contractors should always be consulted for design build solutions.  Field professionals know what will work for cost effective solutions.

Need Help? Contact National Coatings Zero Obligation

Shop drawing for insulating the roof exterior of the Liberty Dialysis medical center
Jon Vaughn
Jon Vaughn

This entry is written by Jon Vaughn Estimating/Sales at MRC Roofing LLC.

Roof Coating System Benefits

Posted by Nicole Gale on Thu, Jan 05, 2023 @ 11:38 AM

Benefits header

National Coatings’ roof coating systems provide superior benefits that other roofing options cannot - Exceptional value, quality, and watertight performance to name a few. Our roof coating systems provide ease-of-application, the ability to restore and renew existing roofs without a tear-off, excellent reflectivity – ultimately leading to energy cost savings and more. 

Westgate Header Picture

Below you will find a compiled list of our roof coating benefits with links to articles that support these claims.

  1. Monolithic Seamless Membrane
    Benefits of a Seamless Roof Coating System

  2. Fully Adhered to Roof Deck
    Adhesion is Important when Applying an Elastomeric Roof Coating System

  3. Long-Term Durability
    1. Durable, Long Lasting, Sustainable Roofing Systems
    2. A Look Back....13 Years Later the Metal Roof at Lihue Airport is Performing Supremely

  4. Custom Reinforced 
    AcryShield Roof Management for Renewing and Restoring Roofs

  5. Wind Uplift Resistance
    AcryShield Roof Systems Provide Protection Against Extreme Wind Uplift and Severe Hail Damage over Structural Concrete Decks

  6. Superior Waterproofing
    Weatherproof Roofing - Roof Coating Systems Protect your Building from Water Penetration and Ponded Water

  7. Outstanding Insulation
    SPF Project with Outstanding Insulation Resulting in a 16.5% Energy Savings

  8. Avoids Costly Tear-Offs
    Sustainable White Roofing – Avoid a Roof Tear Off Indefinitely!

  9. Installed over Asphalt, Mod Bit, Single-Plies, Metal, Concrete and SPF
    What Types of Roofing Membranes Can White Roof Coatings Adhere To?

  10. Non-Disruptive to Tenants 
    1. Safe & Non-Disruptive Roof Restoration Project During Covid Lock Down
    2. Non-Disruptive, Quick, Cost Effective Roof Restoration Project Profile

  11. Environmentally-Friendly 
    Cool Roof Coating Systems are Environmentally-Friendly

  12. Acrylic Coatings 
    Acrylic Roof Coating Benefits

  13. Cost Effective 
    Cool Roof Coating Solution - AcryShield A590 - Saves Money & Energy Usage

  14. Quick Set-Up & Resistance to Early Wash-Off 
    AcryShield Quick Set Coatings

  15. No Costly Business Disruptions During Installation
    Roof Coating Systems Restore Aged Roofs without Business Closure

  16. Solar Ready Roofing
    1. Boost Solar Performance with Solar Ready Roof Coatings
    2. Highly Reflective Solar Ready Coating Options

  17. Unique Clean Room Roofing Options 
    Unique Project Profile: 24 Hour Manufacturer Requiring No Disruptions in Production

  18. Low Initial Cost
    Specifier's can Count on High-Quality, Long-Lasting Roofing Systems with Low Installation Costs when they Select National Coating's Roofing Systems for their Clients

  19. Long Term Performance History
    High Performance, Durable Roof Coating Product Performance

  20. Custom Tint/Color 
    Custom Colored Roof Coating Projects

  21. Low Life-Cycle Costs
    F&A Federal Credit Union Saved 56% of Total Cost Restoring Their Roof

  22. Sustainable/Renewable
    1. Reclaim, Reuse, Restore Your Current Roof
    2. Profile: Deteriorating Roof with Leaks Restored - A Cost Effective, Environmentally-Friendly Solution

  23. Cool Roof
    1. Benefits of Cool Roofing
    2. AcryShield A590 - Highest Rated 3-Year Solar Reflectance Values by CRRC

  24. Reduces Cooling Energy Usage
    - Cool Roofs Lower Maintenance Costs and Energy Cooling Costs

  25. No or Low VOC’s
    National Coatings Offers 16 Super-Compliant SCAQMD Coating Products

  26. Exceptional Credentials and Ratings
    What Sets National Coatings Apart: Credentials and Ratings

  27. Product Guarantees
    Information on National Coatings’ Product Guarantees, Warranties and Approved Applicators

  28. Full System Warranties – 10, 15 and 20 Year
    1. Get a New Roof with a Full System Warranty!
    2. Profile: Kaiser Permanente Received New SPF Roof with a 20 Year Full System Warranty

Contact Us We Can Help You TODAY!