Project: Existing Roof Repair Service the Bronx

RH Renovation NYC completed a comprehensive flat roof repair and waterproofing renewal featuring targeted substrate remediation, Firestone 180 black membrane rubber overlay laydown, and a solar-reflective aluminum protective coating application for a property located in The Bronx, NYC. Densely built commercial and multi-family structures across The Bronx are continuously subjected to severe urban environmental pressures—including extreme rooftop thermal load accumulation, heavy driving rains from seasonal nor’easters, severe urban wind-shear, and harsh winter freeze-thaw cycles.

When an existing flat roof system begins to show signs of surface weathering, minor membrane cracking, or seam degradation, standing water exerts continuous hydrostatic pressure on the underlying assembly. Left unaddressed, moisture saturates thermal insulation, deteriorates structural decking, and leads to costly interior ceiling leaks. This project was engineered to execute a multi-tier protection strategy: systematically repairing localized substrate defects, overlaying a heavy-duty Firestone 180 membrane rubber layer for high-tensile waterproofing, and applying a heavy-bodied aluminum reflective coating to drastically reduce thermal heat absorption and protect the roof against destructive UV degradation.

Comprehensive Scope of Work & Installation Methodology

To adhere strictly to New York City Department of Buildings (DOB) code standards and commercial roofing guidelines, our licensed and insured Bronx flat roofing specialists executed a precise, multi-phase restoration protocol:

• Substrate Audit & Targeted Remediation: Technicians conducted a thorough surface audit across the flat roof plane to locate minor membrane splits, unsealed overlaps, and compromised substrate sections. Degraded materials were systematically cut out and repaired to establish a solid, clean, and uniform foundation.

• Firestone 180 Black Layer Membrane Overlay: A commercial-grade Firestone 180 polyester-reinforced SBS/APP modified bitumen membrane rubber layer was laid over the prepared flat roof. The high-tensile membrane was precisely heat-welded/adhered across the field, ensuring compound bleed-out along all lap joints to form an impenetrable, highly elastic, puncture-resistant waterproof barrier.

• Parapet Wall & Penetration Flashing Detailing: All critical transition zones—including masonry parapet walls, roof scuppers, internal drains, skylight curb bases, and plumbing vent stacks—were encased in reinforced membrane flashing boots, secured with heavy-gauge aluminum termination bars, and sealed with non-sag polyurethane sealants.

• Solar Reflective Aluminum Paint Coating Application: Once the new rubber membrane cure was established, a premium heavy-bodied aluminum reflective roof coating was applied evenly across the entire surface. This elastomeric metallic coating reflects harmful solar ultraviolet (UV) radiation, reduces thermal expansion/contraction stress, lowers rooftop heat absorption, and enhances whole-building energy efficiency.

• Final Quality Assurance & Seam Inspection: A complete multi-point seam probe and drainage flow test were performed to ensure complete seam tightness, edge termination security, and fluid runoff into drainage channels, followed by a full site cleanup.

Project Highlights & Technical Specifications

• Service Category: Commercial & Residential Low-Slope Flat Roof Repair, Rubber Membrane Overlay & Reflective Coating Application

• Project Location: The Bronx, New York, NY

• Core Materials Used: Commercial-grade Firestone 180 polyester-reinforced membrane rubber layer (black layer), heavy-bodied solar reflective aluminum roof paint coating, heavy-gauge aluminum termination bars, prefabricated flashing boots, and industrial polyurethane lap sealants.

• Key Engineering Focus: Hydrostatic water intrusion defense, UV thermal degradation protection, high-tensile puncture resistance, urban wind-shear defense, and NYC DOB code compliance.

Results & Property Owner Value

By repairing the existing roof substrate, overlaying a heavy-duty Firestone 180 rubber membrane, and sealing the entire surface with solar reflective aluminum paint, RH Renovation NYC permanently resolved the building’s leak vulnerabilities. The Bronx property owner now benefits from a fully waterproofed, weather-tight, and energy-efficient flat roof system designed to resist extreme weather while extending the overall service life of the roof.