Modified Bitumen

At Kissimmee Elite Roofing, we offer expert modified bitumen roofing solutions as a reliable commercial roofing contractor serving businesses in Kissimmee and the surrounding Orlando suburbs. Drawing on extensive local expertise and strong industry partnerships, our team provides comprehensive modified bitumen flat roof install, professional commercial roof repair, and dedicated maintenance services. Modified bitumen (often called mod bit) represents a versatile, multi-layer asphalt-based system enhanced with polymers, making it a robust choice for commercial flat roofing on low-slope roofs. This system suits a wide range of properties, including warehouses, retail centers, industrial facilities, office buildings, and schools that require strong protection against Florida’s challenging climate, such as intense UV exposure, high humidity, frequent heavy rainfall, tropical storms, hurricane-force winds, and occasional hail.

Modified bitumen delivers exceptional durability through its reinforced construction, typically featuring multiple plies of asphalt-impregnated fabrics or felts combined with polymer-modified bitumen layers and a protective cap sheet. Two primary polymer types enhance performance: APP (atactic polypropylene), a plastomeric modifier that provides rigidity, superior heat resistance, and excellent UV stability—ideal for Florida’s prolonged sun exposure and commonly installed via torch-down methods for a smooth, flowing application; and SBS (styrene-butadiene-styrene), an elastomeric modifier that imparts greater flexibility and resilience during thermal cycling, allowing better performance under high humidity and temperature fluctuations while enabling installation through cold adhesives, self-adhered sheets, hot asphalt mopping, or torch application. This multi-ply design offers outstanding puncture resistance, impact protection from foot traffic or debris, and reliable waterproofing that outperforms many single-ply options in high-traffic or mechanically stressed environments. With lifespans typically ranging from 20-30 years under proper installation and care—often extended with reflective coatings or cap sheets—modified bitumen provides cost-effective value, strong fire resistance, and proven reliability in Central Florida climates, though darker traditional versions may absorb more heat unless paired with energy-efficient reflective surfaces to help manage cooling demands.

Our modified bitumen flat roof install process prioritizes precision and quality to create a seamless, long-lasting system customized to your building's specifications. We begin with a detailed roof assessment, including deck evaluation, moisture testing, and substrate preparation—removing old materials if needed, repairing damage, and installing high-quality insulation for thermal performance and a level base. Base sheets are applied first for added reinforcement, followed by interply layers and the cap sheet using the appropriate method: torch-down for APP systems, where controlled heat melts the bitumen for strong adhesion without damaging the membrane; cold-applied adhesives or self-adhered options for SBS to minimize open-flame risks; or hybrid approaches as required. Seams receive careful heat welding or adhesive bonding, with flashings, terminations, drains, and penetrations detailed meticulously for watertight integrity. Final inspections, including visual checks, probe testing, and flood testing where feasible, ensure complete performance before project sign-off. This professional execution, supported by robust manufacturer warranties, results in a commercial roof install that withstands regional wind uplift, ponding during heavy rains, and daily operational demands with minimal disruption to your business.

For existing modified bitumen roofs, our flat roof repair services address issues efficiently to restore protection and prevent escalation. Common problems include seam separations from thermal movement, blisters from trapped moisture, cracks or splits due to aging or impact, alligatoring from prolonged UV exposure, punctures from rooftop activity, or flashing failures around equipment and edges. Technicians clean and prime damaged areas, then apply compatible patches—using heat welding for APP, cold adhesives or torch methods for SBS—extending reinforcements well beyond the affected zone for secure, integrated repairs. For more extensive wear, we evaluate partial overlays or targeted replacements, always matching materials for compatibility and maintaining system integrity. These prompt interventions often resolve concerns with limited downtime, protecting interiors from leaks and preserving your investment against further deterioration.

Proactive maintenance is essential to maximize the service life and efficiency of your modified bitumen roofing system, and our programs help businesses avoid unexpected failures while optimizing performance. We recommend biannual professional inspections—spring before the rainy season and fall after hurricane risks—plus checks following severe weather to assess seam condition, identify blisters, cracks, or granule loss, examine flashings and edge details, and confirm proper drainage by clearing drains, scuppers, gutters, and tapered crickets of leaves, debris, sediment, or biological growth that could cause ponding. Gentle cleaning with manufacturer-approved methods removes dirt, pollutants, and algae without harming the surface, while reflective coatings can be applied periodically to restore energy efficiency and UV protection on darker systems. We document observations, handle minor on-site adjustments, and provide guidance on avoiding incompatible products or excessive foot traffic. By choosing Kissimmee Elite Roofing for ongoing commercial roof repair and maintenance, property owners in Kissimmee and the greater Orlando area benefit from extended roof longevity, reduced energy costs through better insulation retention, fewer emergency repairs, and dependable protection tailored to Florida’s demanding climate.

Considering modified bitumen roofing for your next commercial flat roof install or seeking expert flat roof repair for an existing system? Contact our knowledgeable commercial roofing team today for a comprehensive inspection, detailed consultation, or customized quote. We're committed to delivering tough, versatile modified bitumen solutions that fortify your building and support your operations for years to come.