Modified Bitumen Roofing Norman, OK

Installation & Repair Services

Expert Modified Bitumen Roofing Services in Norman, OK

Looking for a durable, weather-resistant roofing system for your flat or low-slope roof? At Norman Roofworks, we specialize in modified bitumen roofing installation, repair, and maintenance for commercial and residential buildings throughout Norman and the surrounding areas. Known for its strength, flexibility, and resistance to UV rays and extreme temperatures, modified bitumen is a trusted choice for long-lasting protection.

What is Modified Bitumen Roofing?

Modified bitumen roofing is an asphalt-based membrane system designed specifically for flat and low-slope roofs. It’s reinforced with polymers—such as SBS (styrene-butadiene-styrene) or APP (atactic polypropylene)—which enhance flexibility, durability, and overall performance. These membranes are also reinforced with fiberglass or polyester, improving their resistance to damage and wear.

Two Types of Modified Bitumen Roofing

SBS Modified Bitumen – A rubber-modified membrane that offers superior flexibility, especially in areas with frequent temperature changes.
APP Modified Bitumen – A more rigid membrane with increased UV resistance, ideal for sunnier climates like Oklahoma.

These systems can be installed using torch-down, cold-applied, or self-adhering methods, depending on project scope and safety considerations.

Benefits of Modified Bitumen Roofing

Long-Lasting Performance –

When properly maintained, these roofs can last 20 to 30 years.

Weather-Resistant –

Designed to handle Oklahoma’s intense sun, storms, and snow.

Watertight Seal –

Creates a seamless surface that helps prevent leaks and pooling.

Thermal Flexibility –

Expands and contracts without cracking or splitting.

Cost-Effective –

A smart, affordable roofing solution for flat commercial and residential properties.

Modified Bitumen Roof Installation in Norman, OK

At Norman Roofworks, we deliver precise, code-compliant installation for all types of modified bitumen systems. Whether you own a warehouse, retail space, or a flat-roofed home, our team ensures a long-lasting, professionally installed roof using only the best materials.

Our Installation Process

Surface Preparation –

We ensure the roof deck is clean and stable before application.

Membrane Installation –

We apply SBS or APP membranes based on your building’s needs.

Seam Sealing –

All seams are professionally sealed to ensure a watertight barrier.

UV Protective Coating –

Optional protective coatings enhance resistance to sunlight and weathering.

Modified Bitumen Roof Repair & Maintenance

Even high-performance roofing systems require occasional maintenance. Our team offers fast and affordable repair services to restore your roof’s integrity and prevent further damage.

Common Issues We Fix

Cracks, blisters, or tears in the membrane
Water ponding on flat areas
Flashing separation or deteriorated seams
Storm-related damage and aging surfaces

With regular inspections and repairs, your modified bitumen roof can continue to perform at its highest level for decades.

Why Choose Norman Roofworks?

Experienced Local Contractors –

Trusted specialists in modified bitumen roofing systems.

Top-Quality Materials –

We use fiberglass-reinforced SBS/APP membranes from leading manufacturers.

Flat & Low-Slope Roof Experts –

Proven success with commercial and residential flat roof systems.

Responsive Service –

Quick turnarounds on repairs, maintenance, and new roof installations.

Transparent Estimates –

We offer honest pricing and free on-site evaluations.

Frequently Asked Questions (FAQ) About Modified Bitumen Roofing

1. Why is modified bitumen roofing ideal for commercial buildings?

It offers outstanding durability, flexibility, and leak protection, making it one of the best roofing choices for commercial flat roofs in Norman.

2. Can it be combined with other roofing materials?

Yes, modified bitumen can be used alongside metal panels, TPO, EPDM, or BUR systems for added performance.

3. How is it different from standard asphalt roofing?

Modified bitumen is enhanced with polymers, giving it greater resistance to cracking and UV exposure compared to basic asphalt.

4. Is it fire-resistant?

Yes. Certain systems, particularly APP-modified membranes, include fire-retardant properties and coatings.

5. How well does it handle foot traffic?

It’s designed to withstand regular foot traffic, making it great for rooftops with HVAC access or maintenance zones.

6. Should I add insulation under the roofing system?

Yes. Rigid insulation boards can significantly improve energy efficiency and indoor comfort.

7. What if I have a leak?

Leaks are rare and easy to address. We offer targeted repair solutions like patching, resealing, or reinforcing damaged areas.

8. Is it better than single-ply membranes?

That depends on your needs. Modified bitumen offers better puncture resistance, while TPO/PVC provides seam-welded durability and lower weight.

9. Which installation method is right for my building?

Options include:

Torch-down – Durable but requires professional handling
Cold adhesive – Flame-free and ideal for sensitive areas
Self-adhered – Clean and quick for smaller jobs

10. When should I consider replacement instead of repair?

If your roof shows blistering, cracking, multiple leaks, or is past 25 years old, a replacement is likely more cost-effective.

11. Is modified bitumen environmentally friendly?

Many products now feature recycled content and reflective coatings, making them more sustainable and energy-efficient.

12. Will it withstand Norman’s climate?

Yes. Modified bitumen systems are built to endure extreme temperatures, hail, heavy rain, and strong winds.

13. Will my business be disrupted during installation?

We complete most projects within a few days and work efficiently to minimize downtime and inconvenience.

14. Do you serve areas beyond Norman?

Yes, we also provide services to surrounding communities across Oklahoma.

15. How can I get an estimate?

Call or message us to schedule a free on-site inspection and personalized estimate.

16. Why is this roofing system a smart investment for Norman property owners?

It’s cost-effective, resilient, and engineered for Oklahoma’s harsh weather, making it a smart long-term investment.

17. Are there any downsides?

Like all systems, it has considerations:

Requires professional installation
Seams may require occasional resealing
Heavier than some single-ply options

18. How does it compare to other systems?

TPO/PVC – More flexible, but less durable under foot traffic
BUR – Thicker and heavier, more complex installation
Metal Roofing – Better for steep slopes, higher cost

19. Can it be installed over an old roof?

In many cases, yes. We assess your current roof to ensure proper adhesion and structural support.

20. What should I look for in a roofing contractor?

Choose a company with:

Proven experience in commercial flat roofing
Licensed, insured professionals
In-depth knowledge of modified bitumen systems
Clear communication and honest pricing

Schedule a Modified Bitumen Roofing Consultation Today

If you’re looking for trusted modified bitumen roofing services in Norman, OK, let the experts at Norman Roofworks handle your installation, repair, or maintenance needs. We offer customized, long-lasting roofing solutions built for Oklahoma’s climate and your budget.

Call us today to schedule your free estimate and protect your property with a premium roofing system.