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Category: HVAC Protection

  • Cool Roof Rating Council Rates ThermalBlock by Coat Zone®

    Cool Roof Rating Council Rates ThermalBlock by Coat Zone®

    We are pleased to announce that ThermalBlock by Coat Zone®, our high-performance radiant barrier coating for rooftop HVAC systems and exposed ductwork, is now rated by the Cool Roof Rating Council (CRRC). The Notification of Product Rating, issued June 10, 2026, confirms that independent, accredited laboratory testing of ThermalBlock by Coat Zone® meets the requirements of the ANSI/CRRC S100 Standard and the CRRC-1 Program Manual.

    A CRRC rating is more than a badge. The rating is a third-party verification standard that is foundational to how reflective building products are evaluated, specified, and approved for use under modern energy codes. Here is what the certification covers, what the numbers mean, and why it matters for projects where solar heat load and energy performance are part of the design conversation.

    What the Cool Roof Rating Council Does

    The CRRC is a nonprofit organization that develops fair, accurate, and credible methods for evaluating and labeling the radiative properties of roofing and exterior wall products. Its mission is to bring objective, scientific information about cool surfaces into decisions affecting heat islands, extreme heat, and energy use in the built environment.

    The CRRC requires products to be tested by CRRC-approved, ISO 17025-accredited laboratories. As an ISO 17065-accredited organization, the CRRC reviews test data and determines whether a product meets the ANSI/CRRC S100 Standard before issuing a Notification of Product Rating. CRRC publishes rated products in its Rated Roof Products Directory. Architects, code officials, and building owners can verify performance values directly in the publication.

    This distinction matters in specification work. Building codes and green building programs increasingly reference CRRC ratings directly. California’s Title 24, Part 6 energy code sets minimum requirements for thermal emittance, three-year aged solar reflectance, and Solar Reflective Index for roofing materials. The Los Angeles Green Building Code similarly requires minimum three-year aged values for residential roofing. LEED’s heat island credit pathway also references reflective roofing performance. A CRRC rating gives specifiers a verified, code-recognized data point rather than an unsubstantiated manufacturer figure.

    The Two Numbers That Matter For CRRC Rating

    Every CRRC rating is built on two core measurements. Each measurement is scored on a scale from 0 to 1, where 1 represents 100% performance.

    • Solar reflectance measures how much of the sun’s energy a surface reflects rather than absorbs. A higher value means less solar heat is transferred into the substrate below.
    • Thermal emittance measures how efficiently a surface releases any heat it does absorb. A higher value means the surface sheds absorbed heat more quickly rather than retaining it.

    The CRRC measures both properties at two points in a product’s life. The initial rating is taken on a new sample. The three-year-aged rating is taken after the product has been weathered to simulate real-world exposure. This second data point is critical because surface soiling and weathering can reduce reflective performance over time. A product that only reports strong initial numbers may not reflect how it will perform several years into service.

    ThermalBlock by Coat Zone®‘s Rated Performance

    According to the CRRC’s Notification of Product Rating, ThermalBlock by Coat Zone® (Bright White, smooth finish, Rated Product ID 1504-0001) achieved the following verified results:

    • Initial solar reflectance: 0.89
    • Three-year aged solar reflectance: 0.80
    • Initial thermal emittance: 0.87
    • Three-year-aged thermal emittance: 0.87 (unchanged after weathering)
    • Initial Solar Reflective Index (SRI): 112
    • Three-year aged SRI: 100

    The product is rated for both low-slope and steep-slope applications. This reflects the range of rooftop HVAC configurations and ductwork installations where ThermalBlock by Coat Zone® is typically applied.

    These figures align with and reinforce testing that ThermalBlock by Coat Zone® has already undergone through other independent protocols. The protocols include ASTM C1549 reflectivity testing, ASTM C1371 emissivity testing, and an NFRC 201-2017 solar heat gain coefficient test conducted by Intertek Solar Labs, which confirmed a 93% reduction in heat transfer through coated surfaces. The CRRC rating adds a recognized, code-referenced verification layer on top of that existing body of evidence. However, this verification is specifically built around the long-term, weathered performance that matters most over a building’s service life.

    Why This Matters for Specification and Design Decisions

    For architects and specifiers, a CRRC rating simplifies due diligence. Rather than evaluating a manufacturer’s internal test data on a case-by-case basis, ThermalBlock by Coat Zone®’s performance values are now independently verified, standardized, and listed in a public directory. Professionals use this format to evaluate any other reflective roofing or coating product under consideration for a project.

    For building owners and facility managers, the practical implication is straightforward. ThermalBlock by Coat Zone® is a thermal radiant barrier coating with credentials that withstand the same scrutiny applied to cool roofing systems. When ThermalBlock by Coat Zone® is applied to rooftop HVAC cabinets, package units, and exposed ductwork, it blocks up to 93% of solar heat and reduces surface temperatures to within 10°F of ambient air, even under peak summer sun. The CRRC’s three-year aged data confirms that this performance holds up over time rather than fading after the first season of exposure. The thermal emittance rating, notably, showed no decline after three years of weathering.

    That durability translates directly into the operational benefits building owners care about: reduced HVAC run time, lower energy consumption, and extended equipment lifespan, all stemming from a coating now backed by one of the most recognized verification bodies in the reflective materials industry.

    A New Standard of Verification for ThermalBlock by Coat Zone®

    Earning CRRC certification reflects Coat Zone®’s ongoing commitment to backing our performance claims with rigorous, independent verification. Energy codes and sustainability requirements continue to place greater emphasis on the long-term, real-world performance of building materials. Having ThermalBlock by Coat Zone® listed in the CRRC Rated Roof Products Directory gives architects, specifiers, and building owners a verified, code-recognized data point to support their decisions.

    To view ThermalBlock by Coat Zone®‘s full CRRC rating or learn more about specifying it for your next project, contact us today.

    Citation List

  • The Outdoor Problem Inside Your Data Center Energy Bill

    The Outdoor Problem Inside Your Data Center Energy Bill

    Data center executives are accustomed to tracking Power Usage Effectiveness (PUE) to the second decimal place. They invest in advanced cooling architectures, optimize airflow management, and benchmark against the best hyperscalers in the industry. Yet one of the most consistent drags on cooling efficiency sits entirely outside the building—and outside most efficiency roadmaps. The physical condition and thermal environment of the outdoor HVAC equipment that actually handles the heat rejection.

    Cooling already represents a significant share of total data center energy consumption. According to McKinsey’s 2024 research, cooling systems account for approximately 40% of a typical data center’s total facility energy use. A separate analysis by Pew Research Center found that cooling’s share ranges from about 7% at the most efficient hyperscale facilities to over 30% at less efficient enterprise operations. Much of what separates those two ends of the spectrum comes down to how well the physical cooling infrastructure is maintained and protected.

    Two specific outdoor degradation factors — solar-driven thermal loading and coil fouling from corrosion and environmental debris — are responsible for a material portion of excess cooling energy consumption and are largely preventable. Understanding and addressing them proactively is one of the most accessible levers for data center operators looking to improve PUE without major capital reinvestment.

    How the Outdoor Environment Undermines Data Center Cooling Efficiency

    Data center cooling systems — whether centralized chilled-air systems, chilled-water loops, or computer room air conditioners (CRACs) — all share a common dependency. They must reject heat to the outdoor environment. That exchange occurs through rooftop-mounted condensing units, cooling towers, and air handlers. The performance of this equipment is directly affected by the conditions in which they operate.

    Solar thermal loading. Rooftop HVAC cabinets and condensing units in direct sunlight regularly reach exterior surface temperatures of 180°F or higher. That temperature is even on days when ambient air temperatures are moderate. The thermal energy transfers into the cabinet interior, raising the temperature of the environment in which the compressor and refrigerant circuit operate. The result is longer run cycles, higher energy draw per ton of cooling delivered, and accelerated mechanical wear. HVAC units are rated under ARI laboratory conditions that do not replicate the real-world rooftop heat load. This means most facilities are operating equipment that performs below its rated efficiency from day one of outdoor deployment.

    Coil fouling and corrosion. The heat exchanger coil is the core of any HVAC unit’s efficiency. Over time, exposure to airborne contaminants, humidity, industrial pollutants, and salt or chemical particulates corrodes the coil’s fin-and-tube structure and degrades the fin-to-tube bond that enables efficient heat transfer. Biological fouling adds another layer of blockage. The coil continues to function, but at progressively lower efficiency with more kilowatts consumed per ton of cooling, higher compressor strain, and an accelerating path toward failure. In data center environments, where cooling demand is continuous and mission-critical, this degradation directly erodes PUE.

    The Scale of the Problem at a Typical Data Center

    The Congressional Research Service has noted that roughly half or more of a data center’s electric power demand stems directly from IT equipment operation. The remainder is going to cooling. For a 100-megawatt facility — a scale increasingly common as AI-driven workloads drive capacity expansion — that means tens of megawatts of continuous cooling load operating around the clock, every day of the year.

    Even a modest improvement in cooling system efficiency compounds significantly at that scale. A 10% reduction in cooling energy consumption on a 40MW cooling load represents 4MW of recovered capacity. That is enough to power thousands of additional servers, defer infrastructure expansion, or directly reduce utility expenditure. The industry average PUE remains approximately 1.56, compared with a hyperscale benchmark closer to 1.2, according to the Uptime Institute’s 2024 survey. Closing that gap requires addressing every layer of inefficiency, including the ones that originate outdoors.

    ThermalBlock by Coat Zone®: Eliminating Solar Heat Load at the Source

    ThermalBlock by Coat Zone® is a high-performance radiant barrier coating applied directly to the exterior surfaces of rooftop HVAC cabinets, condensing units, air handlers, and exposed ductwork. It addresses solar thermal loading before it becomes a compressor burden.

    Independent testing confirms that ThermalBlock by Coat Zone® blocks up to 93% of solar heat, reducing treated surface temperatures to within 10°F of ambient air even under peak summer solar conditions. It reflects 89% of visible light (ASTM C1549) and rejects 87% of heat gain from external sources (ASTM C1371), achieving a Solar Reflective Index of 108 across varying wind conditions. This is a score that holds up in real-world deployment, not just laboratory baselines. The thermal conductivity of treated surfaces is reduced by approximately 13% (K-Value), while thermal resistance increases by approximately 20% (R-Value).

    For data center operators, the operational impact is direct:

    • Reduced compressor run time during peak ambient temperature hours
    • Lower kWh consumed per ton of cooling delivered
    • Extended equipment lifespan — ThermalBlock by Coat Zone® increases HVAC system longevity by up to 30%
    • ROI achievable within 12 to 36 months on minimal capital investment

    ThermalBlock by Coat Zone® is applied on-site to both new and existing equipment, with a water-based, low-VOC formulation and a 10-year warranty. This makes it a low-disruption, low-risk upgrade compatible with active operational environments.

    CoilSafe®: Protecting the Efficiency Core of Your Cooling System

    CoilSafe® is an ultra-thin inorganic coating — just 8 to 10 microns thick, approximately 40 times thinner than standard epoxy coil coatings — applied to HVAC heat exchanger coils to prevent corrosion, restore heat transfer performance, and inhibit biological fouling. Where standard coatings add bulk and can impede airflow, CoilSafe® wicks into the coil’s structure at the molecular level. It retightens the fin-to-tube bond and forms a glass-like inorganic surface that resists moisture, oils, mold, and environmental debris without restricting heat exchange.

    The result is a measured 10% improvement in HVAC efficiency (kW/ton), corrosion protection validated through 6,000 hours of salt fog testing (ASTM B117) and 25,000 hours of atmospheric corrosion exposure (ASTM G50), and zero fungal growth in ASTM G21 testing. Because it forms a permanent covalent bond, CoilSafe® will not flake, peel, or degrade — even under sustained environmental stress.

    For data center cooling systems operating continuously in environments ranging from coastal humidity to urban industrial air, this level of coil protection directly translates to sustained efficiency over the full service life of the equipment. Rather than the gradual performance erosion that typically goes unmeasured until a replacement event forces the issue.

    Proven at Scale: The AT&T Galveston Case

    The durability and performance of CoilSafe® is not theoretical. AT&T faced a severe coil corrosion problem at its Galveston Island facility. This area is one of the most corrosive coastal environments in the United States. Constant Gulf of Mexico salt spray was reducing rooftop HVAC coil lifespan to just three to four years. After applying CoilSafe® to new rooftop units at installation, a follow-up inspection nearly eight years later found the coils remained pliable, corrosion-free, and fully functional. The application also delivered a 15% reduction in HVAC energy consumption. This deferred replacement capital and materially improved operating efficiency at a facility where HVAC reliability is non-negotiable.

    The AT&T result is instructive for data center operators. In environments with elevated corrosion risk — coastal proximity, industrial air quality, high humidity cycling — the degradation timeline for unprotected coils is measurable in years, not decades. CoilSafe® interrupts that cycle at the point of installation.

    A Low-Cost Lever for a High-Cost Problem

    Data center efficiency investments tend to focus on IT hardware, power distribution architecture, and advanced cooling system design. All of which involve significant capital commitment and planning cycles. ThermalBlock by Coat Zone® and CoilSafe® represent a different category of investment. That is, protective coatings applied to existing equipment that recover efficiency being lost to entirely preventable physical degradation.

    The combination of reduced solar heat loading and restored coil performance addresses the two primary outdoor-environment contributors to cooling inefficiency, with ROI timelines that compare favorably to virtually any alternative efficiency measure under consideration. For data center executives focused on PUE improvement, sustainability commitments, and operational cost management, these coatings belong in the efficiency conversation.

    Contact Coat Zone® to learn how ThermalBlock by Coat Zone® and CoilSafe® can be integrated into your facility’s efficiency strategy.

    Citation List

    • Pew Research Center. “What We Know About Energy Use at U.S. Data Centers Amid the AI Boom.” October 24, 2025. pewresearch.org
    • Congressional Research Service. “Data Centers and Energy: CRS Report R48646.” congress.gov/crs-product/R48646
    • Hanwha Data Centers. “Data Center Energy Efficiency Best Practices: 11 Tips from Top Operators.” October 10, 2025. hanwhadatacenters.com
    • The Network Installers. “Data Center Energy Consumption Statistics & Data (2026).” January 12, 2026. thenetworkinstallers.com
    • Etalytics. “IEA Energy Efficiency Report 2025: Data Center Cooling.” December 18, 2025. etalytics.com
  • Your HVAC Coils Are Costing You More Than You Think

    Your HVAC Coils Are Costing You More Than You Think

    Here’s something most business owners don’t realize: your HVAC system didn’t start losing efficiency the day it broke down. It started losing efficiency the day it was installed. Slowly, quietly, and in a way that shows up on your utility bill long before it shows up as a service call.

    The culprit is usually the coil.

    What Happens to HVAC Coils Over Time

    The heat exchanger coil is the part of your HVAC system that actually does the heating and cooling. It’s a tight network of fins and copper tubing. When it’s working properly, heat transfers efficiently between the refrigerant and the air moving through your building.

    But over time, a few things happen. Corrosion sets in. Mold and debris accumulate in the fins. The bond between the fin and the copper tube, which is critical for heat transfer, begins to loosen. The coil is still technically “working,” but it’s working harder to do less. Your system runs longer cycles, pulls more kilowatts, and wears out faster.

    HVAC systems already account for 50% or more of energy use in most commercial buildings. A degraded coil pushes that number higher every month.

    So What Does CoilSafe® Actually Do?

    CoilSafe® is a thin-film inorganic coating applied directly to your HVAC coil, either in the field or at a service shop. At just 8 to 10 microns thick (about 40 times thinner than a standard epoxy coating), it doesn’t block airflow or reduce heat transfer. It does the opposite.

    The coating wicks into the coil’s structure at a molecular level, retightening the fin-to-tube bond and restoring the heat transfer that corrosion and age have degraded. It also forms a glass-like surface. This surface resists mold, moisture, bacteria, and the kind of environmental gunk that clogs fins and drives up maintenance costs.

    The result is a measurable 10% improvement in HVAC efficiency, less energy consumed per hour of operation, and a unit that performs closer to what it did the day it left the factory.

    What That Means for Your Bottom Line

    For business owners, the math is pretty straightforward. CoilSafe® is a one-time application on existing equipment. You avoid replacement, avoid major downtime, and avoid significant capital outlay. Most clients see a return on investment within 12 to 36 months through lower utility bills and reduced maintenance frequency.

    It also extends equipment life considerably. Corrosion is one of the primary reasons HVAC units get replaced before their time. Protect the coil, and you protect the investment you’ve already made in your equipment.

    And because CoilSafe® is antimicrobial and supports better indoor air quality, there’s a secondary benefit for your team and your customers: cleaner air circulating through a cleaner system.

    TL;DR

    If your HVAC system is more than a few years old and you haven’t thought about the coil, you’re probably leaving money on the table. Money in energy costs, in maintenance calls, and in equipment life. CoilSafe® is a simple, proven fix for a problem most people don’t know they have.

    Reach out to Coat Zone to learn more or find a dealer near you.

  • Hospital HVAC Downtime

    Hospital HVAC Downtime

    The Hidden Risk You Can’t Afford to Ignore

    In most commercial buildings, an HVAC failure is an inconvenience. In a hospital, it is a crisis. The moment a ventilation system falters in an operating room, an isolation ward, or an intensive care unit, the consequences can cascade quickly. This includes compromised sterile fields, disrupted air pressure relationships, canceled procedures, and patients placed at elevated risk of infection. For healthcare facility managers, preventing that scenario is not simply a maintenance priority. It is a clinical and regulatory imperative.

    Understanding what drives HVAC deterioration and how to stop it before it becomes downtime is one of the most impactful investments a hospital facility team can make.

    What’s Actually at Stake When Hospital HVAC Fails

    Hospital HVAC systems do far more than regulate temperature. They maintain precise positive and negative pressure relationships that prevent airborne pathogens from migrating between spaces. The systems control humidity levels that inhibit mold and microbial growth. They filter particulates from air circulating through surgical suites, immunocompromised patient rooms, and neonatal units. When these systems degrade or fail, the clinical consequences are direct and documented.

    Research shows that inadequate ventilation and contaminated HVAC systems are associated with elevated rates of hospital-acquired infections (HAIs). One analysis noted that 86% of healthcare-associated infection outbreaks involve HVAC-related factors, such as pressure-differential failures. HAIs affect approximately 1 in 31 hospital patients on any given day, and airborne transmission pathways represent a significant and preventable component of that risk.

    The regulatory consequences are equally serious. HVAC compliance failures are among the most frequently cited deficiencies in Joint Commission surveys. These failures appear in infection prevention findings at the majority of hospitals reviewed. When systems fail to meet ASHRAE Standard 170 requirements, which govern air change rates, pressure relationships, filtration, temperature, and humidity for over 60 distinct healthcare space types, facilities face Joint Commission citations, CMS reimbursement penalties, and potential loss of accreditation. In the most severe cases, patient transfers become necessary until the system is restored.

    The financial dimension is stark. Emergency HVAC repairs in healthcare settings cost 50–100% more than planned maintenance. HVAC downtime due to critical system failures can cost hospitals up to $100,000 per hour when surgeries are disrupted and critical care operations are compromised.

    The Root Causes of Hospital HVAC Deterioration

    Most HVAC failures do not happen suddenly. Failures are driven by the physical degradation of system components that goes unaddressed until performance drops to a critical threshold. In hospital environments where rooftop equipment is exposed to extreme heat, humidity, UV radiation, and coastal or industrial air, two failure pathways are especially common.

    Coil corrosion and fouling. Heat exchanger coils are the efficiency engine of any HVAC unit. Over time, corrosion, biological fouling, and degradation of the fin-to-tube bond reduce heat transfer performance. This forces systems to run longer and harder to maintain the required temperatures and air change rates. Degradation is rapid and severe in environments that expose evaporator coils to moisture, biological loading, and airborne contaminants. These environments are routinely found in healthcare settings.

    Solar-driven thermal overload. Rooftop air handlers and ductwork in hospital buildings are exposed to direct solar radiation. The exposure can drive exterior cabinet temperatures to 180°F or higher. When ductwork insulation fails, as it inevitably does after years of weather exposure, supply air temperature losses of 10°F or more become common. The failure then strains system capacity and makes it difficult to maintain the precise climate conditions that clinical areas require.

    A Real-World Example: Kindred Hospital, San Antonio

    Kindred Hospital in San Antonio, a four-story long-term acute care facility, experienced exactly this scenario. Approximately 5,000 linear feet of rooftop ductwork had insulation that had failed from prolonged elemental exposure, deteriorating to the point of falling off the ducts entirely. The result was a 14°F temperature loss in the supply air stream. The high amount of temperature loss makes it difficult to maintain consistent indoor temperatures during peak cooling demand. It also strongly impacts both patient comfort and HVAC system performance.

    Coat Zone® dealer Energy Performance Solutions removed the failed insulation, cleaned and prepared the duct surfaces, and applied ThermalBlock™ as a sealed, weather-resistant barrier. The outcome: supply air temperature loss was reduced from 14°F to just 3°F, the facility regained the ability to maintain comfortable and consistent temperatures throughout the building, and ongoing energy savings have continued month over month since application.

    Two Coatings Purpose-Built for the Stakes Hospital HVAC Demands

    Coat Zone® develops high-performance protective coatings designed to address the exact failure modes that drive HVAC downtime. For healthcare facilities, two products are particularly relevant.

    CoilSafe Plus®: Antimicrobial Coil Protection for High-Stakes Environments

    CoilSafe Plus® is an ultra-thin inorganic coating applied to HVAC evaporator coils to prevent corrosion, fouling, and microbial growth. Unlike standard coil coatings, CoilSafe Plus incorporates an advanced silver-ion antimicrobial agent that actively combats mold, bacteria, and viruses directly on the coil surface. In a clinical environment where the coil is a potential vector for biological contamination of the air supply, this distinction matters.

    Testing performance includes:

    • 99.5% reduction in bacteria over 24 hours (ISO 22196)
    • 99.8% reduction in SARS-CoV-2 over 24 hours (ISO 21702:2019)
    • Zero fungal growth in ASTM G21 testing
    • 6,000+ hours of salt fog corrosion resistance (ASTM B117)
    • Flame rating of 0, Smoke rating of 0 (ANSI/UL 723)
    • Restores units to 90–95% efficiency by reestablishing the fin-to-tube bond and improving heat transfer

    At just 8 to 15 microns thick, CoilSafe Plus applies without reducing airflow or heat transfer performance, and its glass-like inorganic surface repels moisture, oils, and debris. The coating helps keep coils cleaner between service intervals and reduces the frequency of maintenance events that themselves carry infection control risks in occupied clinical environments.

    ThermalBlock™: Protecting Ducts and Cabinets from Solar Degradation

    ThermalBlock™ is a high-performance radiant barrier coating applied to rooftop HVAC cabinets, air handlers, and ductwork. It blocks up to 93% of solar heat gain, reducing surface temperatures to within 10°F of ambient, even in direct summer sun. Its Solar Reflective Index of 108 confirms performance across real-world temperature and wind conditions, not just laboratory baselines.

    For hospital facility managers, ThermalBlock™ directly addresses the ductwork insulation failure scenario illustrated at Kindred and prevents it from developing in the first place on treated equipment. By reducing thermal stress on rooftop systems, ThermalBlock™ also extends equipment lifespan by up to 30%, reducing the frequency of capital replacement cycles and the operational disruptions they generate.

    Both coatings can be applied to new or existing equipment, in the field or at a coating center, with low-VOC formulations and rapid cure times that minimize disruption to active clinical operations.

    Proactive Protection Is a Patient Safety Strategy

    Hospital facility managers operate in an environment where the gap between a maintenance decision and a patient outcome is measured in hours. HVAC systems that degrade due to coil corrosion, ductwork insulation failure, or solar-driven thermal stress eventually reach a failure threshold that no reactive repair can address quickly enough to prevent clinical disruption.

    CoilSafe Plus® and ThermalBlock™ from Coat Zone® extend that threshold significantly by keeping equipment performing closer to specification for longer, reducing emergency repair exposure, and supporting the continuous, compliant HVAC performance that hospitals cannot function without.

    Contact Coat Zone® to learn how our coatings are protecting healthcare HVAC systems and supporting facility managers who understand that downtime is never an option.

    Citation List

    • OxMaint. “Hospital HVAC Maintenance: Ensuring Patient Safety and Regulatory Compliance.” March 12, 2026. oxmaint.com
    • OxMaint. “Hospital Facility Maintenance Checklist for Compliance and Safety.” March 12, 2026. oxmaint.com
    • Oklahoma Chiller. “HVAC Pump Maintenance For Hospitals and Healthcare Facilities.” July 28, 2025. okchiller.com
    • Iron Mechanical. “The Vital Role of HVAC and Plumbing Systems in Healthcare Facilities.” September 2, 2025. ironmechanical.com
    • Alertify. “The Hospital Air Quality Compliance Checklist Every Administrator Needs.” alertify.io
    • National Institutes of Health / PubMed Central. “Effects of Air-Conditioning Systems in the Public Areas of Hospitals: A Scoping Review.” ncbi.nlm.nih.gov
    • ASHRAE. “Chapter 9: Health Care Facilities.” ASHRAE Handbook — HVAC Applications. ashrae.org
  • Energy Intelligence Starts with Your HVAC System

    Energy Intelligence Starts with Your HVAC System

    Facility and plant managers are under mounting pressure to reduce operating costs and demonstrate progress toward sustainability. All while keeping equipment running reliably, often with the same budgets and headcounts as before. A recent article in Automation World highlighted a compelling shift in how leading manufacturers are approaching this challenge. By treating energy as a measurable, controllable production input rather than a fixed line item on the monthly utility bill.

    That concept, energy intelligence, is reshaping plant operations. Real-time monitoring platforms, demand management tools, and predictive maintenance strategies are allowing facilities to see exactly where energy is going and why. But for all the sophistication of these digital systems, there remains a physical blind spot that erodes efficiency before any sensor can even measure it. This blind spot is the condition and performance of your HVAC equipment.

    At Coat Zone®, we believe true energy intelligence requires addressing the hardware layer and not just the data layer. And HVAC coatings are one of the most cost-effective, high-impact tools available to facility managers looking to close that gap.

    The Missing Variable in Your Energy Intelligence Strategy

    Modern energy monitoring platforms can tell you how many kilowatt-hours your facility consumed in the last hour. What they often cannot tell you is how much of that consumption is driven by degraded equipment performance. This includes coils caked with corrosion and compressors working under solar heat loads that were never factored into the original system design.

    HVAC systems are among the largest energy consumers in commercial and industrial buildings. They frequently account for 50% or more of total energy use. In rooftop-mounted configurations, units are exposed to conditions that lab testing rarely replicates. Direct solar exposure can drive exterior cabinet temperatures to 180°F on an otherwise mild day. This then forces compressors and fans to run longer and harder than their rated specs were designed to handle. The result is increased runtime, higher kWh consumption, accelerated wear, and a shorter equipment lifespan.

    This degradation occurs gradually, making it easy to miss in standard energy monitoring dashboards. But the kilowatts are being consumed nonetheless, and they are costing you money every hour of every operating day.

    ThermalBlock™: Reducing Solar Heat Load at the Source

    Coat Zone®’s ThermalBlock™ is a high-performance radiant barrier coating applied directly to the exterior cabinets of rooftop HVAC units, exposed ductwork, and air handlers. Its purpose is straightforward: stop solar heat from entering the system before it ever becomes a thermal burden.

    Independent lab testing confirms that ThermalBlock™ blocks up to 93% of solar heat. By blocking the heat, it reduces surface temperatures to within 10°F of ambient air even in peak summer conditions. The coating reflects 89% of visible light (ASTM C1549) and rejects 87% of heat gain from external sources (ASTM C1371), with a Solar Reflective Index of 108. These results indicate exceptional performance across varying wind and weather conditions.

    For facility managers focused on energy intelligence, the operational implications are significant:

    • Reduced HVAC run time, particularly during peak demand periods when utility pricing is highest
    • Lower kWh consumption directly improves energy-intensity metrics such as energy per unit produced
    • ThermalBlock™ has been shown to increase HVAC system longevity by up to 30%
    • ROI is typically achieved within 12 to 36 months on minimal capital investment

    ThermalBlock™ can be applied on-site to both new and existing systems. Therefore, it is a low-disruption upgrade that complements rather than replaces ongoing energy monitoring initiatives.

    CoilSafe®: Restoring Efficiency Where It Is Lost Most

    If ThermalBlock™ addresses the external thermal environment, CoilSafe® addresses the internal performance core of your HVAC system: the heat exchanger coil.

    Over time, HVAC coils can suffer from corrosion, biological fouling, and the gradual degradation of the fin-to-tube bond, a critical interface where heat transfer occurs. Each of these factors reduces system efficiency and drives up energy consumption in ways that are often invisible until a major failure occurs. CoilSafe® is an ultra-thin inorganic coating, just 8 to 10 microns thick, approximately 40 times thinner than standard organic coatings. The coating wicks into the coil’s structure and bonds at the molecular level, restoring the fin-to-tube connection and improving energy transfer performance.

    The practical results include a 10% improvement in HVAC efficiency, as measured in kW/ton. The corrosion protection was validated through 6,000 hours of salt fog testing (ASTM B117) and 25,000 hours of atmospheric corrosion testing (ASTM G50). The coating also creates a glass-like antimicrobial surface that resists mold, mildew, and environmental debris. Additionally, CoilSafe® contributes to healthier indoor air quality, which is increasingly relevant to both occupant health and regulatory compliance.

    For energy intelligence programs, CoilSafe® addresses a root cause of anomalous energy consumption. When energy monitoring data reveals that a particular unit is consuming more kWh per ton than expected, corroded or fouled coils are frequently the culprit. CoilSafe® provides a preventive and restorative solution. It helps your equipment continue to perform closer to its original factory specifications throughout its service life.

    Amplifying the Value of On-Site Renewable Energy

    The Automation World article noted an important dynamic for facilities investing in solar, wind, or cogeneration. That dynamic is that the return on investment is not limited to kilowatt-hours generated. It also includes avoided demand charges and reduced peak pricing exposure. If a facility experiences midday demand spikes, on-site solar can shave those peaks but only if HVAC systems are not simultaneously driving consumption higher than necessary.

    This is where HVAC coatings become a force multiplier for renewable energy investments. By reducing HVAC run time and lowering overall system energy draw, particularly during peak solar hours, ThermalBlock™ and CoilSafe® increase the proportion of on-site generation that can be applied to other facility loads or fed back to the grid. The net effect is a higher utilization rate for your renewable assets and a stronger ROI case for future clean energy investments.

    Additionally, reduced energy consumption directly lowers carbon emissions per unit produced. This is a metric that sustainability and ESG reporting frameworks increasingly require. HVAC coatings contribute measurably to that number without requiring major capital expenditure or operational disruption.

    Building a Complete Energy Intelligence Stack

    Energy intelligence, at its most effective, operates at every layer of a facility’s infrastructure, from the software platforms that monitor and optimize energy flows in real time to the physical condition of the equipment producing and consuming that energy. Digital monitoring tools provide visibility. Coatings protect the hardware that makes the data meaningful.

    Facility and plant managers who invest in both layers, modern monitoring alongside proactive equipment protection, position their operations for lower utility costs, longer asset lifecycles, stronger sustainability performance, and greater resilience against energy price volatility.

    ThermalBlock™ and CoilSafe® from Coat Zone® are designed to be exactly that kind of foundational investment: proven, low-disruption, and demonstrably effective. Plus, with ROI timelines that make the business case straightforward.

    If your facility is building out an energy intelligence strategy, we encourage you to evaluate what your HVAC equipment is costing you before any monitoring tool can see it. Contact Coat Zone® to learn more about how our coatings integrate with your operational efficiency goals.

    Sources

    • Vanden Brink, Alec. “Real-Time Energy Intelligence Inside Your Plant.” Automation World, April 6, 2026. automationworld.com