Professional Modified Bitumen Roofing Contractors
At Heritage Roofing & Repair, we deliver expert modified bitumen roofing services for businesses and homeowners seeking a durable flat roof system that can withstand Arkansas’ unpredictable weather.
Modified bitumen combines the durability of asphalt roofing with modern flexibility and advanced polymer reinforcement. This roofing solution is one of the most reliable and widely used for flat roofs and low-slope roofing systems, providing exceptional waterproofing and resilience against heavy storms.
With Harrison, AR, averaging 49 inches of rainfall per year (above the U.S. average of 38 inches) and frequent hail events across Boone County, property owners must invest in roofing systems built to last. Modified bitumen is designed exactly for these conditions.
Why Choose Heritage Roofing & Repair
Over 50 Years of Local Experience
We’ve worked through decades of Arkansas’s changing weather patterns, learning exactly which materials and techniques last.
Licensed & Insured
All our professionals are fully certified, and our work is backed by comprehensive insurance policies.
Rapid Emergency Response
Our trucks are stocked for immediate deployment after storms.
Proven Reputation
Our Testimonials speak for themselves, with dozens of 5-star reviews from satisfied homeowners.
What is Modified Bitumen Roofing?
Modified bitumen roofing is an asphalt-based, multi-layer roofing system reinforced with polymers such as SBS (styrene-butadiene-styrene) or APP (atactic polypropylene). These enhancements give the material elasticity, flexibility, and superior waterproofing.
Key Features of Modified Bitumen Roofing (explained):
- Multi-Layer Protection – Layers of membrane and bituminous waterproofing are installed, creating a barrier that resists water infiltration even in extreme weather.
- Durable Asphalt Base – Asphalt is a time-tested roofing material. When combined with polymers, it becomes even more resistant to tears, impacts, and rooftop traffic.
- Flexible Performance – SBS-modified systems remain elastic in freezing winter temperatures, while APP-modified systems resist cracking under intense summer heat.
- Application Versatility – Torch-applied, cold-applied, or self-adhered sheets give contractors multiple safe and effective installation methods to fit the project’s needs.
Fact: A survey by the National Roofing Contractors Association found that modified bitumen remains one of the top three most installed commercial roofing systems nationwide, particularly for flat roofs in storm-prone regions.
Benefits of Modified Bitumen Roofing
Choosing a modified bitumen roof is not just about durability; it’s about long-term performance and cost savings.
- Waterproofing Excellence
Modified bitumen membranes are built for waterproofing. Their multiple layers provide redundancy, meaning if one layer fails, others continue to protect. This is critical for Arkansas’ intense storm systems that can drop several inches of rain within hours. - Strength & Durability
The polymer reinforcement and asphalt base provide exceptional tear and puncture resistance. This makes it an excellent choice for rooftops with HVAC units, foot traffic, or heavy equipment. - Flexibility in Climate Extremes
APP-modified membranes resist UV radiation and heat cracking, while SBS-modified systems stretch and contract in freezing temperatures. This dual versatility ensures roofs survive Arkansas’ 20°F winters and 90+°F summers without failing. - Long Service Life
With proper roof maintenance, modified bitumen roofs last 20–25 years, and multi-ply systems can exceed 30 years. - Energy Savings with Cool Roof Coatings
When paired with reflective coatings, modified bitumen systems can lower rooftop temperatures by up to 50–60°F and reduce cooling costs by 15% or more, according to the U.S. Department of Energy. - Cost-Effectiveness
While installation costs are moderate ($4–$8 per square foot), the long lifespan and low maintenance needs make modified bitumen a low lifecycle cost option compared to cheaper but shorter-lived systems.
Modified Bitumen Roofing Systems & Options
There are several system options available, each suited for different needs:
- APP-Modified Bitumen (Atactic Polypropylene)
Offers high UV and heat resistance. Best for buildings exposed to direct sunlight. Typically installed with torch-down methods. - SBS-Modified Bitumen (Styrene-Butadiene-Styrene)
Provides elasticity and flexibility in colder climates. SBS systems are resistant to cracking in winter. - Self-Adhered Modified Bitumen
Safer installation without torches or asphalt. Ideal for schools, hospitals, and occupied spaces where fumes or open flames are not acceptable. - Hybrid Systems
Combines modified bitumen with single-ply membranes or coatings for increased durability and performance.
Cost of Modified Bitumen Roofing
The cost of modified bitumen roofing averages $4–$8 per square foot installed.
Factors That Affect Price:
- Roof size and slope (larger roofs cost more but have a lower cost per sq. ft.).
- Application method (torch-down vs. self-adhered).
- Number of plies (multi-ply = higher cost but longer lifespan).
- Preparation needs (removing existing roof, repairing substrate).
We offer free roof replacement estimates and flexible roof financing options.
Modified Bitumen Roofing Compared to Other Flat Roof Systems
Roofing System | Average Lifespan | Cost (Installed, per sq. ft.) | Energy Efficiency | Durability | Best For |
Modified Bitumen | 20–25 years (30+ with coatings) | $4–$8 | Moderate; can be improved with reflective coatings (up to 15% energy savings) | Multi-layer strength; excellent waterproofing; resists heavy foot traffic and hail | Commercial buildings, schools, warehouses, flat-roof homes with rooftop equipment |
TPO Roofing | 20–30 years | $5–$9 | Excellent; reflective white surface lowers cooling bills by 10–30% | Lightweight, puncture resistant, strong UV and chemical resistance | Offices, retail centers, energy-conscious buildings, residential flat roofs |
EPDM Roofing | 20–25 years | $4–$8 | Low by default; black membrane absorbs heat unless coated | Flexible in cold weather but more vulnerable to punctures and ponding | Warehouses, low-budget projects, colder climates |
Modified Bitumen Roof Installation Process
Installing modified bitumen is a multi-step process requiring certified roofing contractors. At Heritage Roofing & Repair, we follow industry best practices for performance and safety.
- Roof Inspection & Substrate Prep
We start with a roof inspection to evaluate the deck, insulation, and substrate. Damaged areas are repaired, ensuring a strong base.
This step prevents hidden weaknesses that could compromise the new roof. - Base Sheet Application
A base ply is mechanically fastened or adhered to create the foundation for the system.
This layer adds structural stability and anchors the membrane. - Membrane Installation
Modified bitumen sheets are installed using one of four methods:- Torch-Down Roofing – Sheets are heated with propane torches to create a strong bond.
- Hot Asphalt Application – A traditional method where hot asphalt adheres the layers.
- Cold Adhesive Application – Provides a safer, low-odor option.
- Self-Adhered Sheets – Peel-and-stick technology for fast, low-risk installs.
Each method provides strong adhesion and watertight seams tailored to building needs.
- Multi-Ply Layering
Depending on the project, multiple plies may be installed. Multi-ply systems significantly increase roof lifespan and wind resistance. - Cap Sheet & Coating Application
A cap sheet is applied, often with reflective or granular surfacing. This protects against UV damage and extends the roof’s service life. - Final Inspection & Warranty Registration
Every roof is inspected to meet manufacturer specifications, securing warranty coverage.
A well-installed modified bitumen roof typically lasts 20–25 years, and with reflective coatings and proper roof maintenance, it can often exceed 30 years. Harrison’s heavy rainfall and hail events make regular inspections essential for maximizing lifespan.
Yes. Modified bitumen is one of the best roofing systems for flat roof structures. Its multi-layer design and waterproofing properties make it an excellent choice for commercial buildings, schools, and homes with low-slope or flat roofs in Harrison.
In Arkansas, the average cost of modified bitumen roofing is $4–$8 per square foot installed. Factors include roof size, number of plies, and whether you choose torch-applied, cold-applied, or self-adhered systems. We provide free roof replacement estimates to give property owners an accurate budget.
Yes. Modified bitumen is engineered with reinforced asphalt and polymers that resist punctures and tears. This makes it highly effective against hail damage, heavy rainfall, and wind-driven debris, common issues in Boone County.
SBS (Styrene-Butadiene-Styrene): Flexible, great for cold weather performance. APP (Atactic Polypropylene): Strong UV resistance, better in hot and sunny climates. Both perform well in Arkansas, where summers are hot and winters can drop below freezing.
We recommend inspections at least twice a year (spring and fall) and after major storms. Routine roof inspections help catch small seam issues or cracks before they turn into costly repairs.
Yes. Many issues, such as seam failures or surface cracks, can be addressed with professional roof repair. If the roof is nearing the end of its service life, a replacement may be more cost-effective.
It works for both. Many Harrison homeowners choose modified bitumen for garages, porches, or flat-roof home additions, while businesses rely on it for warehouses, schools, and office buildings.
Yes. By applying reflective “cool roof” coatings, modified bitumen systems can reduce rooftop heat by 50°F–60°F, lowering energy costs by up to 15% during Arkansas summers, according to the U.S. Department of Energy.
Yes. Heritage Roofing & Repair provides both manufacturer warranties and our own workmanship roofing warranty, giving property owners peace of mind.
Contact Us Today
Heritage Roofing & Repair
Address: 3458 Arkansas State Hwy 221, Berryville, AR 72616
Phone: (870) 654-1164
Email: info@myheritageroofing.com
Business Hours
Monday: Open 24 hours
Tuesday: Open 24 hours
Wednesday: Open 24 hours
Thursday: Open 24 hours
Friday: Open 24 hours
Saturday: Open 24 hours
Sunday: Closed