ROOFING DONE RIGHT. WE'VE GOT YOU COVERED. GUARANTEED!

200+

call(720) 475-1065 get in touch

Signs Your Commercial Roof Storm Damage Was Improperly Repaired

Posted on May 27, 2025

Signs Your Commercial Roof Storm Damage Was Improperly Repaired

When severe weather strikes Denver, commercial roofs often take on the worst of the impact. After the storm passes, proper repairs are essential to protect your business investment and maintain structural integrity. Unfortunately, not all repair work meets professional standards, so identifying poor workmanship early can save you significant headaches and expenses down the road.

Denver’s unique weather patterns — from hailstorms to heavy snow and intense sun exposure — create specific challenges for commercial roofing systems. These harsh conditions can quickly expose flaws in low-quality repair work, turning minor issues into major structural problems that threaten your building’s safety and your bottom line.

Recognizing the warning signs of poor storm damage repairs requires attention to detail and some basic knowledge of roofing standards. Visible issues like uneven patches, mismatched materials, or recurring leaks after repair work often indicate that your commercial roof repairs were inadequate. Less obvious problems might include improper flashing installation or insufficient attention to underlying structural damage.

For business owners and property managers, understanding these signs isn’t just about maintaining appearances — it’s about protecting critical assets and preventing ongoing damage that can impact inventory, equipment, and daily operations. Identifying failed commercial roof repairs early allows for prompt intervention before small issues evolve into expensive emergencies.

Visible Signs of Compromised Repairs After a Storm

Following severe weather events, commercial roofs in the Denver area may require significant repairs. Unfortunately, not all repair work is created equal. Knowing how to spot subpar repair jobs can save your business from expensive water damage and structural issues down the line.

One of the most telling signs of poor storm damage repair is inconsistent patching. Look for areas where repair materials don’t blend with the existing roofing surface or where patches appear lumpy and uneven. Mismatched materials — such as different colored shingles or membrane sections — not only look unprofessional, they also compromise the roof’s weather resistance and accelerate deterioration.

Visible seam separations are particularly concerning on commercial flat roofs. When membrane seams pull apart or show bubbling along the edges, water can penetrate these vulnerable points during the next storm. Similarly, flashing that appears loose, bent, or improperly sealed around roof penetrations indicates substandard workmanship.

Ponding water is another red flag of low-quality repairs. After rain, properly repaired commercial roofs should drain completely within 48 hours. Areas of standing water suggest drainage problems weren’t properly addressed during repairs. Look for water accumulation near patches or repair sites, which often indicates improper slope correction or blocked drainage paths — issues that qualified Denver commercial roofing contractors would address during proper storm damage restoration.

Internal Warning Signals: When Poor Repairs Affect Your Building’s Interior

While exterior signs of poor roof repairs are important to recognize, the interior of your commercial building often tells an equally compelling story about repair quality. Water infiltration from inadequately repaired storm damage frequently manifests inside your building before causing visible external deterioration.

Water stains on ceilings or walls represent the most obvious interior warning sign. These yellowish or brownish discolorations typically appear after rainfall and may grow larger with each subsequent storm. Pay particular attention to stains that develop after roof repairs were meant to address storm damage, as they directly indicate repair failure. In Denver’s climate, where snow melt can create prolonged moisture exposure, even small repair defects can lead to significant interior water damage.

Musty odors and visible mold growth provide clear evidence that moisture is entering your building. Commercial buildings with failed roof repairs often develop mold in ceiling tiles, wall corners, and around HVAC vents. This not only threatens the structural integrity of the building but it also creates potential health hazards for employees and customers.

Conducting regular interior inspections can help catch these issues early. Document any suspicious stains with photos, note their location in relation to the roof repairs, and track changes over time. Monitor humidity levels in different areas of your building, as unexpected increases often signal moisture intrusion through poorly repaired sections. These simple monitoring practices help identify commercial roof repair defects before they escalate into catastrophic failures requiring complete roof replacement.

Membrane and Flashing Failures: Technical Assessment Points

Membrane and flashing failures are critical indicators of poor storm damage repair on commercial roofing systems. Properly functioning membranes and flashing form the first line of defense against water intrusion, and their failure can lead to extensive damage throughout a building. Understanding these technical aspects helps Denver business owners identify substandard repair work before it’s too late.

Membrane blistering occurs when trapped moisture or air creates bubbles beneath the roofing surface. If they form after repairs have been made, this means that the contractor failed to properly dry the substrate before applying new materials. These blisters can range from small, isolated bubbles to large areas of separation that compromise the entire roofing system. During Colorado’s freeze-thaw cycles, these blisters expand and contract, eventually rupturing and creating entry points for water.

Membrane tenting and shrinkage are equally problematic. Tenting happens when the membrane pulls away from corners or transitions, creating uplifted areas susceptible to wind damage. Shrinkage causes the membrane to pull back from the edges and flashing, exposing the underlying structure. Both conditions typically result from improper material selection or installation techniques during storm restoration work.

Flashing failures around roof penetrations, HVAC units, and parapet walls often reveal poor workmanship. Look for unsealed seams, improperly terminated flashing, or missing counter-flashing after repairs. Quality commercial roof storm repair inspection should confirm that all flashing is properly secured, sealed, and compatible with existing roofing components to ensure long-term protection for your Denver commercial property.

Documentation and Warranty Issues: The Administrative Red Flags

The paperwork that accompanies your commercial roof repair can reveal as much about the quality of the work as the physical roof itself. When reviewing documentation after storm damage repairs on your Denver commercial property, pay close attention to vague or incomplete paperwork. Quality contractors provide detailed documents that outline the scope of the work and materials used, repair methods employed, and areas addressed; anything less may indicate that they’re cutting corners.

You should also take the time to closely scrutinize warranty terms. Reputable commercial roofing contractors offer clear, written warranties that specify coverage duration, exclusions, and maintenance requirements. Be wary of verbal assurances without written documentation to back it up, or warranties with excessive limitations. If your contractor seems reluctant to put guarantees in writing or offers unusually short warranty periods for major repairs, this often correlates with substandard workmanship.

Repair documentation should include before-and-after photographs, material specifications, and detailed invoices matching the original quote. Compare complete work records against initial assessments to identify discrepancies. Ask yourself: Were all damaged areas addressed? Did the contractor substitute lower-quality materials than initially specified? Thorough documentation serves not only as quality assurance but may prove crucial for insurance claims or if subsequent issues develop.

Maintenance recommendations should also be provided after substantial storm damage repairs. Their absence suggests the contractor may be avoiding future scrutiny of their work. Legitimate commercial roof repair specialists in Colorado understand that proper documentation protects both their reputation and your investment in storm damage restoration.

The Long-Term Impact of Subpar Storm Damage Repairs

When commercial roof storm damage is improperly repaired, the consequences extend far beyond the immediate visible issues. Poorly executed repairs set in motion a cascade of deterioration that significantly shortens your roof’s functional lifespan. For Denver businesses, this represents a substantial financial liability that grows with each passing season.

The degradation process accelerates dramatically with substandard repairs. A properly installed commercial roof should last 20 to 30 years, depending on the system, but poor storm damage repairs can reduce this lifespan by up to 70%. This occurs because inadequate repairs fail to properly seal the building’s thermal envelope, allowing moisture to continuously enter the roof and degrade supporting components.

Energy efficiency suffers tremendously from failed commercial roof repairs. Small gaps and improper sealing create thermal bridges that allow conditioned air to escape. Denver businesses with poorly repaired roofs typically see heating and cooling costs increase by 15% to 25% as HVAC systems struggle to maintain comfortable indoor temperatures. During extreme weather swings common to Colorado’s climate, these systems may run almost continuously, further increasing operational costs.

The compounding nature of these issues means that identifying poor workmanship early is crucial. What begins as minor water infiltration gradually compromises insulation, degrades structural elements, and creates increasingly difficult indoor climate control challenges. Addressing these issues as soon as possible with qualified commercial roofing specialists prevents the exponential growth of problems that eventually necessitate complete roof replacement.

Taking Action: Professional Inspection and Remediation Steps

After identifying potential signs of poor storm damage repair on your commercial roof, taking prompt and decisive action is essential to prevent further damage. The first step is thorough documentation of all concerns. Walk your property after rainfall, take date-stamped photographs of problem areas, and maintain a detailed log of when issues first appeared and how they’ve progressed over time.

Engaging qualified Denver roofing contractors for a comprehensive assessment is your next critical move. Look for contractors with specific commercial roofing expertise and storm damage restoration credentials. Request references from other commercial clients and verify their insurance and licensing status. Professional inspectors will use moisture detection equipment, infrared scanning, and core sampling when necessary to evaluate the true condition of your repaired roof.

When inspection confirms problems with previous repairs, request a detailed written report outlining all identified issues. This documentation proves to be extremely valuable for warranty claims, insurance purposes, and potential legal action against the original repair contractor. For significant concerns, consider obtaining secondary inspections from independent roofing consultants who have no financial interest in performing subsequent repairs.

Address repair failures based on their severity and potential for structural damage. Emergency issues like active leaks require immediate intervention, while less critical concerns should be scheduled within 30 to 60 days. 

Ensure Your Commercial Roof is Expertly Repaired with Roper Roofing & Solar

When it comes to protecting your commercial property in Denver from storm damage, ensuring that every repair is conducted properly is important. Low-quality storm damage repairs can lead to significant structural issues, increased maintenance costs, and premature deterioration of your roofing system. If you’ve noticed any signs of poor storm damage repair on your commercial roof, such as mismatched materials, visible seam separations, or internal signs like water stains and mold growth, it’s time to take immediate action.

Don’t let inadequate repairs impact the integrity and safety of your building. Call Roper Roofing & Solar now at (720) 475-1065 to schedule a professional inspection and ensure your roof is in top condition. Our expert team is ready to provide you with high-quality repairs that you can trust to last. Protect your investment with the help of trusted professionals who understand the challenges of Denver’s unique weather patterns and roofing needs.