A hail-damaged commercial roof should be repaired, coated, recovered, or replaced according to what the storm changed throughout the roof assembly—not according to hail size, dent count, or roof age alone. Localized, repairable damage on an otherwise dry and stable system may justify repairs. A coating may be appropriate when the existing roof is compatible, firmly attached, and dry after deficiencies are corrected. A recover requires an adequate existing base, acceptable moisture conditions, structural capacity, manufacturer approval, and code compliance. Replacement becomes the stronger option when deterioration, trapped moisture, attachment problems, or incompatible layers are too extensive to preserve responsibly.
At Flatland Roofing, we make this as a technical lifecycle decision. Our job is to determine which parts of the roof still have dependable value and which parts no longer belong beneath the next system.
Why Hail Size Does Not Select the Roofing Scope
The National Weather Service describes large hail and damaging wind as recurring warm-season hazards in the Amarillo area. Yet two buildings exposed to the same storm can require different work because roof type, age, attachment, insulation, deck, drainage, maintenance, and impact locations differ.
The IBHS/RICOWI roof guides also note that many roofing products and assemblies are not impact-rated and that model codes do not prescribe one universal hail-resistance requirement. A nearby storm report therefore cannot tell us whether a specific roof should be coated or removed.
For owners seeking commercial roofing in Amarillo, the useful question is not “How big was the hail?” It is “What is the condition of the complete roof now?”
The Four Options at a Glance
| Option | What it means | When it may fit | What can disqualify it |
|---|---|---|---|
| Repair | Correct defined defects while retaining most of the existing roof | Damage is localized, the surrounding system is serviceable, and compatible repairs can restore continuity | Widespread deterioration, recurring leaks from multiple causes, obsolete materials, or uncertain attachment |
| Coat | Prepare and repair an eligible roof, then apply a compatible liquid-applied protective system | The substrate is dry, stable, cleanable, compatible, and able to receive the specified system | Wet insulation, unstable surfacing, unresolved movement, inadequate drainage, contamination, or failed adhesion testing |
| Recover | Install a new roof covering over an eligible existing roof | Existing materials provide an adequate base, moisture is addressed, loads are acceptable, and code and manufacturer instructions allow it | Water-soaked or seriously deteriorated materials, excessive existing layers, weak attachment, or incompatible construction |
| Replace | Remove the roof assembly to the deck and construct a new system | Full access to wet insulation, deck, drainage, and attachment is needed, or preservation no longer provides sound value | Higher initial disruption and disposal—not a technical disqualifier, but an operational factor to plan |
These categories are not interchangeable. A coating is not simply a cheaper recover, and a recover is not a repair with more material. Each creates a different assembly, warranty path, load, service expectation, and future tear-off condition.
Our Commercial Roof Evaluation Method
1. We identify the existing assembly
We establish the membrane or panel type, manufacturer when identifiable, installation age, number of roof applications, insulation, cover board, deck, attachment, prior coatings and repairs, leak history, and later rooftop alterations.
A white roof is not necessarily TPO, and two similar-looking metal panels may use different joints and attachment. Product identification affects repair compatibility and whether a manufacturer-supported restoration detail exists.
2. We separate urgent openings from the long-term decision
Active punctures, displaced metal, open flashings, or water entry need timely mitigation without declaring the entire roof failed prematurely. If water is entering, our emergency leak repair service can protect the building while a permanent scope is developed.
3. We map damage by component and mechanism
We inspect representative areas rather than counting marks in one section. Depending on the system, we look for membrane punctures, open seams, cracked foam or coating, split metal, damaged attachments, loose edge metal, and distress at curbs, drains, scuppers, penetrations, and expansion joints. We also separate new storm effects from service damage and failing prior repairs.
The distinction between observation and conclusion matters. A mark establishes that something contacted the surface; it does not independently establish moisture below the membrane or justify a whole-roof scope.
4. We evaluate seams, edges, flashings, and drainage
Commercial roofs often develop problems at transitions before the field fails. We check perimeters, parapets, penetrations, curbs, drains, gutters, and overflow paths. A coating follows the existing surface; it does not create slope or correct a misplaced drain.
5. We investigate concealed moisture
Visible surface condition does not establish whether insulation is dry. Water can migrate laterally between layers and appear inside far from its entry point.
Depending on construction and project scale, investigation can include interior inspection, probing, electrical-impedance or infrared surveying, and representative test cuts to verify the assembly and scan findings.
ASTM D7954/D7954M explains that electrical-impedance scanning can assist with condition assessment before repair or replacement, but does not by itself identify the cause of moisture. ASTM C1153 likewise requires invasive verification of infrared indications.
A colorful thermal image is not a final diagnosis. Roof composition, weather conditions, surface materials, equipment, and trapped heat can create anomalies. Verification is essential.
6. We check the substrate, attachment, and structural implications
The new work must have a reliable path to the structure. We assess accessible deck condition, attachment, insulation, perimeter securement, and movement. Additional layers add dead load; wet insulation adds weight and loses thermal performance.
We do not assume every commercial roof needs an engineer. We also do not use a coating or recover to conceal a condition that requires structural evaluation.
7. We verify code, manufacturer, and warranty requirements
The 2021 International Building Code reroofing provisions allow certain coating and recover applications, but prohibit a recover where the existing roof is water-soaked or too deteriorated to serve as an adequate base. The model code also restricts recover where two or more roof-covering applications already exist.
Manufacturer requirements may be more specific and address eligible substrates, moisture investigation, adhesion testing, preparation, cover board, fasteners, wind design, drainage, inspection, and warranty eligibility.
Properties inside Amarillo city limits must also follow the current local permitting and code process. The City of Amarillo Building Safety Department should be treated as the authority for the specific project—not a generic article or an assumption based on a neighboring jurisdiction.
When a Targeted Repair Is the Best Value
Repair deserves consideration when defects are defined and the remaining system is stable. Examples include limited punctures, a damaged pipe boot, separated curb flashing, displaced termination metal, or isolated wet insulation that can be removed with sound tie-ins.
We become cautious when “localized repair” actually means chasing recurring leaks across unrelated areas, bonding new material to a brittle or contaminated surface, or placing patches over wet components. The number of repairs is less important than whether they restore a continuous, inspectable system.
When a Roof Coating May Be Appropriate
A coating can extend the serviceable period of an eligible roof, improve reflectivity, and create a renewed protective surface. It cannot make unsound insulation dry, restore a deteriorated deck, or stabilize loose materials beneath it.
The Roof Coatings Manufacturers Association emphasizes evaluation, surface preparation, product documentation, and necessary repairs as prerequisites to successful coating work. Its primer guidance states that primer is not a substitute for a clean, dry, properly prepared substrate.
Before proposing a coating, we confirm compatibility, dry and firmly attached materials, completed repairs, acceptable drainage, adhesion results, preparation and primer, detail reinforcement, application rate, final dry-film thickness, and maintenance requirements.
“Silicone,” “acrylic,” or “urethane” on an estimate is not a complete specification.
When a Recover Makes Technical Sense
A recover can add a new membrane and, where designed, insulation or cover board without removing every component. Because it preserves concealed conditions and adds another layer, we verify dryness, attachment, layer count, compatibility, load capacity, and surface suitability.
Recover design should also account for perimeter enhancement, penetrations, curbs, drains, overflow elevations, equipment access, and transitions. Raising the roof plane can reduce flashing heights or change drainage geometry.
When Replacement Is the More Responsible Choice
Replacement gives access to the deck and allows wet insulation, attachment deficiencies, and drainage problems to be addressed directly. We are more likely to recommend it when moisture is widespread, materials cannot form an adequate base, layer limits prevent recover, deck conditions need broad correction, drainage needs redesign, flashing heights cannot support another layer, or the desired system cannot be warranted over the construction.
Replacement is not automatically required because a roof is old or a storm produced large hail. It is selected when preserving the assembly transfers too much unresolved risk into the next roof cycle.
A Practical Decision Matrix
| Finding | Repair | Coat | Recover | Replace |
|---|---|---|---|---|
| Isolated compatible defects; dry surrounding system | Strong candidate | Possible after repairs | Usually unnecessary | Usually unnecessary |
| Serviceable roof with aged surface; dry and attached | Possible | Candidate if compatible | Possible | Consider lifecycle and future plans |
| Limited wet insulation with clear boundaries | Possible with removal of wet areas | Possible only after wet materials are removed | Possible after remediation and approval | Compare long-term value |
| Widespread or uncertain concealed moisture | Weak candidate | Poor candidate | Commonly disqualified | Strong candidate |
| Loose membrane or weak substrate attachment | Limited value | Poor candidate until corrected | Requires engineered/tested solution | Often favored |
| Extensive drainage or deck correction needed | Insufficient alone | Insufficient alone | May preserve the defect | Often favored |
| Multiple existing roof applications | Verify code | Verify exact classification and code | Often prohibited | Strong candidate |
The table guides investigation; it is not a replacement threshold.
How We Present the Recommendation
Our proposal should make the decision auditable by identifying the assembly, defects, moisture investigation, repair zones, retained and removed materials, drainage, attachment, manufacturer specification, permit responsibility, and warranties. We also consider tenants, equipment, future rooftop work, and the owner’s expected hold period.
If your Amarillo, Bushland, Dalhart, or Dumas building has been through hail, contact Flatland Roofing for a commercial roof evaluation based on the assembly—not a one-size-fits-all storm diagnosis.
Frequently Asked Questions
Does hail damage mean my entire commercial roof must be replaced?
No. The scope depends on openings, flashings, moisture, attachment, substrate condition, repair compatibility, and dependable service remaining. Localized damage may be repairable after a significant storm.
Can a coating be applied over hail damage?
Only after the roof is shown to be an eligible substrate and repairs are completed. Coating should not conceal punctures, loose material, wet insulation, failed seams, or deteriorated decking.
Can wet roof insulation dry beneath a coating?
That should not be assumed. Trapped moisture reduces thermal performance and can contribute to deterioration. Wet materials require investigation and appropriate removal.
Is an infrared scan enough to approve a recover?
No. Infrared imaging identifies condition-dependent thermal anomalies, not automatically wet insulation. Representative invasive verification is needed.
What is the difference between a coating and a recover?
A coating is a liquid-applied protective roof system over an eligible prepared substrate. A recover installs a new roof covering over an existing covering. They have different preparation, code, attachment, load, detailing, and warranty requirements.
Can a commercial metal roof be coated instead of replaced?
Sometimes. We first evaluate corrosion, seams, fasteners, panel movement, penetrations, existing coatings, drainage, and attachment. Required repairs and a compatible manufacturer specification must be established before coating.
How many roof layers can remain under a recover?
Do not rely on a universal answer from a proposal. The applicable code, local amendments, definition of existing applications, roof construction, and manufacturer instructions must be verified. The model 2021 IBC restricts recover over two or more existing applications.
Does roof age determine repair versus replacement?
No. Age provides context, but current moisture, substrate, attachment, drainage, material condition, repair history, and future plans are more useful. A newer roof can have serious concealed problems, while an older dry roof may remain repairable.
Do I need a permit for commercial roof work in Amarillo?
Permit requirements depend on the exact scope and jurisdiction. Work inside Amarillo city limits should be coordinated with the City’s Building Safety Department, and the contractor’s written scope should identify responsibility for permits and inspections.
When should an engineer or roof consultant be involved?
Additional professional review may be appropriate when framing or deck capacity is uncertain, ponding or deflection is significant, wind design is complex, failures are disputed, moisture is extensive, or the proposed retrofit changes structural loads or drainage.