How to Protect Roof-Mounted HVAC Equipment from Hail Damage

Hailstorms are among the most unpredictable and damaging weather events for commercial buildings. While many property owners focus on protecting roofs, siding, and windows, one critical component often overlooked is roof-mounted HVAC equipment.

Damage to rooftop HVAC systems from hail can lead to costly repairs, system failures, business interruption, and long-term energy inefficiency. At RiskAssured, we help facility managers and property owners take proactive steps to safeguard this high-value equipment from extreme weather.

Photo by Champers Fu on Unsplash

Why Rooftop HVAC Units Are at High Risk During Hailstorms

When hail strikes coil assemblies or fan components, it can compress delicate fins, damage blades, or puncture key structural elements. Over time, this damage accumulates, reducing airflow, decreasing system efficiency, and potentially causing full unit failure.

Most Vulnerable Equipment Includes:

• Condenser coils and fan blades on HVAC units and chillers

• Cooling tower fill media and fans

• Upright heat exchanger coils

• Exhaust vents for air handlers and makeup air units

• Exhaust fans and rooftop ductwork

The Cost of Hail Damage Goes Beyond Equipment Repairs

Even minor hail impacts can shorten the lifespan of HVAC units and degrade performance. In many cases, the downtime and productivity loss caused by a damaged system can exceed the actual repair or replacement costs. Business continuity, occupant comfort, and critical building functions all depend on reliable HVAC systems—making hail protection a top priority.

Be Proactive: Install HVAC Hail Guards

One of the most effective ways to minimize hail damage is to install hail guards—protective barriers that shield vulnerable components without blocking airflow. Hail guards are available in various designs and materials, each tailored to specific HVAC configurations.

Common Hail Guard Solutions:

• Coil-based protection systems: Use aluminum frames with galvanized steel mesh or louvered panels

• Semi-rigid composite barriers: Configured in lattice or square patterns for balanced protection

• Hail netting and intake filter screen systems: Feature galvanized frames with fiber-reinforced filters

Three Ways to Implement HVAC Hail Protection

Your approach will depend on whether you're outfitting a new building or retrofitting existing equipment:

1. Purchase HVAC Units with Built-In Hail Protection

When installing new systems, select models that include factory-installed hail guards. These are designed specifically for the unit and can often be color-matched to your building’s aesthetics.

2. Retrofit Existing Rooftop Equipment

Contact the original equipment manufacturer (OEM) to determine if aftermarket hail guard kits are available. Some third-party vendors also offer customizable retrofit solutions that integrate with various HVAC models.

3. Consult a Specialist

Unsure which route to take? Reach out to a qualified HVAC professional or risk advisor to evaluate your options and recommend a solution that meets both your protection needs and local building codes.

Key Installation and Maintenance Tips

Whether you're installing new guards or retrofitting existing equipment, keep these best practices in mind:

• Only allow licensed and insured professionals to handle the installation

• Do not mount hail guards directly against coil fins, as this can restrict airflow

• Ensure all guards are securely fastened to prevent wind-related movement or detachment

• Routinely inspect and clean hail guards to prevent debris buildup and airflow obstruction

• Monitor system performance after installation to detect any changes in efficiency

• Include hail guard installation in contractor agreements and require adherence to OSHA fall protection and industry safety standards

Protect Your Investment and Ensure Operational Continuity

Your rooftop HVAC equipment is a critical asset. Without proper protection, hail damage can compromise your building’s climate control, energy efficiency, and overall performance. Investing in high-quality hail guards and professional installation can help you avoid costly repairs, unexpected downtime, and insurance claims.

At RiskAssured, we partner with commercial property owners and facility managers to create comprehensive protection plans that safeguard their HVAC systems and other weather-sensitive equipment.

Contact us today to schedule a hail risk consultation or receive recommendations for HVAC guard installation.