How Oklahoma’s Weather Affects Commercial Roofing (And What You Can Do About It)

March 4, 2025
9:23 pm

How Oklahoma’s Weather Affects Commercial Roofing (And What You Can Do About It)

Oklahoma is no stranger to extreme weather. From scorching summers to severe storms and even the occasional snowfall, the state’s climate can be brutal on commercial roofing. Business owners who want to protect their investments must understand how these weather conditions impact their roofs and what proactive steps they can take to extend the life of their roofing systems.

In this article, we’ll explore the biggest weather-related threats to commercial roofs in Oklahoma and provide practical solutions to keep them in top shape.

The Biggest Weather Challenges for Commercial Roofs in Oklahoma

1. Intense Heat and Sun Exposure

Oklahoma summers are relentless, with temperatures often exceeding 100°F. This extreme heat can cause significant wear and tear on commercial roofs, especially flat roofs that absorb and retain heat.

How It Affects Your Roof:

Thermal Expansion & Contraction – Roofing materials expand during the heat of the day and contract at night, leading to cracks, splits, and seam separation.
UV Damage – Prolonged exposure to the sun’s ultraviolet rays can cause roofing membranes to dry out, weaken, and become brittle over time.
Increased Cooling Costs – A poorly insulated or dark-colored roof absorbs more heat, making it harder (and more expensive) to keep your building cool.

What You Can Do About It:

Choose reflective roofing materials like TPO or cool roof coatings to reduce heat absorption.
Apply UV-resistant coatings to protect your roof from sun damage.
Ensure proper roof insulation to prevent heat transfer into the building.
Schedule routine inspections to catch signs of deterioration early.

2. Severe Storms and High Winds

Oklahoma is part of Tornado Alley, meaning high winds, hailstorms, and even tornadoes pose a serious risk to commercial roofing.

How It Affects Your Roof:

Wind Uplift – High winds can create a vacuum effect, pulling up roofing materials and causing major damage.
Loose or Missing Flashing – Strong winds can loosen flashing and fasteners, leading to leaks and water intrusion.
Debris Damage – Flying debris can puncture or tear roofing membranes.

What You Can Do About It:

Use wind-rated materials designed to withstand extreme conditions.
Install properly secured flashing and fasteners to minimize wind uplift risks.
Trim overhanging trees and remove loose debris around your property to prevent impact damage.
After major storms, schedule a professional inspection to assess damage and make necessary repairs.

3. Heavy Rainfall and Flash Flooding

Oklahoma experiences periods of intense rainfall, especially in the spring and fall, which can lead to roof leaks, ponding water, and water damage.

How It Affects Your Roof:

Ponding Water – Flat commercial roofs often struggle with drainage, causing water to pool and deteriorate roofing membranes.
Leak Formation – Heavy rain can expose weak spots in the roof, leading to interior leaks and water damage.
Mold and Mildew Growth – Persistent moisture creates the perfect environment for mold, which can damage both the roof and interior air quality.

What You Can Do About It:

Ensure your roof has proper drainage to prevent standing water.
Keep gutters and downspouts clear of debris to improve water flow.
Repair small leaks before they become bigger problems.
Consider adding a protective roof coating to improve water resistance.

4. Hailstorms

Hailstorms are a common occurrence in Oklahoma, especially in the spring and early summer. Even small hailstones can cause significant damage to commercial roofs.

How It Affects Your Roof:

Punctures and Tears – Hail can dent, crack, or puncture roofing membranes, leading to water infiltration.
Shingle and Membrane Damage – If your commercial roof has shingles, hail can knock granules off, weakening the material.
Compromised Insulation – Repeated hail impacts can damage insulation layers, reducing energy efficiency.

What You Can Do About It:

Choose impact-resistant roofing materials like modified bitumen or reinforced TPO.
Install a protective roof coating to absorb hail impact.
After a hailstorm, schedule an inspection to identify damage before leaks develop.
Consider insurance coverage that includes hail damage repair.

5. Winter Freezes and Ice Dams

While Oklahoma doesn’t experience long, harsh winters, occasional freezing temperatures and ice storms can still wreak havoc on commercial roofs.

How It Affects Your Roof:

Freeze-Thaw Cycles – Water seeps into small cracks and expands when frozen, worsening roof damage.
Ice Dams – Ice buildup along the edges of the roof can block proper drainage, leading to water backups and leaks.
Added Weight Load – Accumulated ice and snow can put excessive stress on the roof structure.

What You Can Do About It:

Improve roof insulation to prevent heat loss and ice buildup.
Make sure drainage systems are clear before winter to prevent ice dams.
Have a professional remove ice and snow rather than using sharp tools that can damage the roof.
Use waterproof membranes to add an extra layer of protection against leaks.

The Importance of Regular Roof Inspections & Maintenance

The best way to protect your commercial roof from Oklahoma’s harsh weather is through routine inspections and proactive maintenance. Here’s why:

Prevents Expensive Repairs – Catching small issues early prevents major damage and costly fixes.
Extends Roof Lifespan – Regular upkeep helps your roof last longer, delaying costly replacements.
Ensures Business Continuity – Avoid unexpected roof failures that could disrupt your operations.
Maintains Energy Efficiency – Well-maintained roofs improve insulation and reduce cooling costs.

Recommended Inspection Schedule

Twice a Year: Spring and fall inspections to prepare for extreme seasonal weather.
After Major Storms: Always check for damage following heavy winds, hail, or tornadoes.
Regular Maintenance: Keep gutters clear, check for standing water, and seal minor cracks as needed.

Final Thoughts: Protect Your Investment with Smart Roofing Choices

Oklahoma’s unpredictable weather means commercial property owners must take roofing maintenance seriously. Whether it’s the heat, hail, heavy rain, or high winds, each season brings its own set of challenges. By choosing the right materials, conducting regular inspections, and staying proactive with maintenance, you can protect your business and avoid costly repairs.

If you’re unsure about the current state of your commercial roof, Affordable Construction can help. Our experienced team provides professional inspections, repairs, and full replacements designed to withstand Oklahoma’s toughest weather conditions. Contact us today for a free roof assessment and ensure your commercial property stays protected year-round!