A metal roof is one of the best long-term investments you can make in a commercial building. With proper care, systems like the Butler MR-24 roof can last 40–50 years or more. But “long-lasting” doesn’t mean “maintenance-free.” Like any building system, your roof requires routine inspections to protect performance, prevent leaks, and preserve warranty coverage.
This guide provides the ultimate inspection checklist—combining industry best practices with Butler Manufacturing’s own maintenance standards. Whether you’re a property owner, facility manager, or contractor, this resource will help you extend the life of your roof and avoid costly surprises.
Download, Print, and Put This Roof Inspection Checklist to Work:
1. Exterior Surface Inspection
Roof Panels
- ☐ No dents, scratches, or deformations in panels
- ☐ Panels aligned straight and uniform
- ☐ No rust, oxidation, or corrosion beginning on surfaces
- ☐ Coatings and paint intact (no peeling or chipping)
- ☐ Fasteners tight, none missing or overdriven
- ☐ Fastener materials compatible with panel finish (to avoid galvanic corrosion)
- ☐ No leaks, staining, or signs of water penetration
- ☐ All panels securely attached
Flashing
- ☐ Flashings securely installed with no gaps
- ☐ No rust, cracks, or bending in flashing
- ☐ Proper seal around penetrations (vents, skylights, chimneys, curbs)
- ☐ No water infiltration at flashing seams
2. Roof Structure & Support System
Structural Integrity
- ☐ Roof deck shows no sagging, rot, or warping
- ☐ Trusses and rafters free of cracks or splits
- ☐ No signs of load stress or structural compromise
Underlayment
- ☐ No tears, gaps, or deterioration in underlayment
- ☐ No exposed areas from improper installation or damage
Ventilation
- ☐ Ridge and soffit vents unobstructed
- ☐ No leaks or water intrusion around vent openings
3. Roof Components & Accessories
Gutters and Downspouts
- ☐ Securely fastened, no loose sections
- ☐ Free of leaves, debris, or blockages
- ☐ Proper slope for water drainage
- ☐ Downspouts direct water away from building foundation
Roof Edges and Fascia
- ☐ Edges show no rust, damage, or separation
- ☐ Fascia free of rot, mold, or deterioration
Skylights, Chimneys, and Penetrations
- ☐ Seals intact around all penetrations
- ☐ Flashings securely fastened and sealed
- ☐ No visible leaks or interior staining nearby
4. Drainage and Water Management
- ☐ No standing water or ponding on roof surface
- ☐ Roof slope allows water to flow freely to drains or gutters
- ☐ Valleys and low spots clear of debris
- ☐ No water stains, discoloration, or mold growth
5. Signs of Wear or Potential Problems
- ☐ No punctures, dents, or abrasions in panels
- ☐ No surface scratches that could invite corrosion
- ☐ Overlaps between panels properly sealed and secure
- ☐ No buckling or warping from expansion/contraction
- ☐ No popped, loose, or missing fasteners
6. Safety Considerations
- ☐ Roof surface free from loose panels or sharp hazards
- ☐ Safety rails or fall protection installed as required
- ☐ Skylights properly guarded to prevent falls
- ☐ Lightning protection system inspected and grounded
7. Maintenance Tasks
Sealants and Flashings
- ☐ Reseal joints at roof edges, penetrations, and flashings as needed (use Butler-approved products like Panlastic® or urethane sealants)
Cleaning
- ☐ Remove debris after rooftop work—metal scraps, drill chips, and insulation can corrode or puncture panels
- ☐ Clean roof surfaces with mild detergent or approved solvents (avoid abrasives that damage Butler-Cote® finishes)
Snow and Ice
- ☐ Remove excessive buildup promptly with plastic shovels (never metal tools that gouge panels)
HVAC and Equipment Drainage
- ☐ Ensure condensate from rooftop units is piped into gutters—not discharged onto roof panels
- ☐ Confirm no copper piping drains directly onto panels (copper corrodes ALZN-coated steel quickly)
8. Documentation
Every inspection should end with documentation:
- ☐ Overall roof condition (Good, Fair, Poor)
- ☐ Areas needing immediate repair
- ☐ Recommended improvements
- ☐ Photos of findings
- ☐ Inspector’s signature and date
For Butler roofs under Watertight Gold™ coverage, this documentation is required annually to maintain warranty protection.
Red Flags That Require Immediate Action
- 🚩 Active leaks inside the building
- 🚩 Severe rust-through of panels
- 🚩 Loose or missing panels
- 🚩 Sealant failures around penetrations
- 🚩 Structural sagging or deformation
If any of these are found, call a professional roofing contractor immediately.
Why Metal Roof Inspections Are Critical
- Protect your investment: Early detection of small issues (like loose fasteners or deteriorating sealant) prevents expensive repairs.
- Preserve warranty coverage: Butler’s Watertight Gold™ Endorsement requires documented inspections. Neglect can void your warranty.
- Ensure safety: Ponding water, corrosion, or structural sagging can compromise safety if left unchecked.
- Maximize lifespan: Routine care keeps a roof performing for decades instead of just years.
Industry standards recommend inspecting your roof twice per year—once in spring and once in fall—and after major weather events like hailstorms, heavy snow, or strong winds.
Why Professional Roof Inspections Pay Off
While building owners can perform basic visual checks, professional inspections are critical. Certified Butler Builders like MAR Building Solutions know exactly what to look for—from seam performance to subtle signs of expansion stress. A trained eye catches problems before they escalate into warranty-voiding or costly damage.
MAR Building Solutions offers full roof inspection, maintenance and repair services for property owners across Kansas City and beyond. As an authorized Butler Builder, we combine manufacturer-backed expertise with local experience to keep your roof watertight for the long haul.
👉 Ready to schedule a professional inspection? Contact MAR today to protect your investment.
