Impervious Roof Coatings LLC is an industry-leading commercial roofing contractor specializing in fluid-applied roofing systems that restore, protect, and extend the life of existing roofs—without the cost or disruption of tear-offs. As an awarded KCDA Vendor (Contract #25-412), Impervious provides members with a turn-key, compliant, and cost-effective solution for roof restoration, waterproofing, and energy-efficient building envelope protection.
Comprehensive Roofing Solutions
Impervious offers a full suite of roof restoration and coating systems engineered for long-term performance across commercial, industrial, educational, and municipal facilities, including:
• Silicone Roof Coatings (ProSil Alkoxy Silicone) – Designed for maximum UV resistance and ponding-water protection, this seamless membrane delivers exceptional waterproofing, flexibility, and long-term reflectivity—ideal for high-exposure or flat-roof applications.
• Urethane Systems (UreFlex Series) – A two-component urethane system providing superior adhesion, chemical resistance, and elongation for demanding industrial environments where long-term durability and flexibility are essential.
• FiberSeal Base Roof Coating System – A proprietary fiber-reinforced, spray-applied leak-proofing system developed by Impervious to replace outdated polyester fabric and seam-tape methods that can damage metal roofs. FiberSeal Base forms a seamless, breathable, and flexible waterproof barrier across seams, fasteners, and penetrations—saving labor, reducing material waste, and extending the service life of metal, mod-bit, and single-ply roofs.
• Metal Roof Restoration Systems – Complete restoration of metal roofing assemblies including rust-inhibiting primers, fastener encapsulation, seam reinforcement, and full-surface waterproof coatings for a watertight, reflective, and corrosion-resistant finish.
• Seam and Penetration Reinforcement – Advanced mastics and fabric-reinforced applications that permanently seal critical transitions, flashings, and penetrations to ensure full system integrity and leak protection.
Professional Services
KCDA members can rely on Impervious for end-to-end project execution, including:
• Comprehensive Roof Inspections & Condition Reports
• Preventative Maintenance Programs
• Warranty Inspections & Annual Service Plans
• Certified Installation Crews
Why Choose Impervious Roof Coatings and Fluid-Applied Roofing
Fluid-applied coatings provide a sustainable and budget-friendly alternative to full roof replacement, eliminating tear-offs, reducing landfill waste, and minimizing building disruption.
Our systems are engineered for longevity and available with 10-, 15-, and 20-year warranties, depending on coating type, film thickness, and substrate condition. Each option delivers verifiable performance and peace of mind backed by manufacturer-supported warranties.
Additional benefits include:
• Extends roof service life up to 20 years with renewable warranty options
• Improves energy efficiency through high solar reflectance (cool-roof technology)
• Meets or exceeds ASTM, UL, and FM standards
• Qualifies for utility rebates and sustainability programs
• Is non-disruptive to daily building operations
Industries & Facility Types Served (but not liimited to)
• K–12 Schools • Public Universities • Counties & Municipalities
• Public Works • Warehouses • Correctional & Judicial Centers
• Transit & Transportation Facilities
Commitment to Quality & Safety
Impervious Roof Coatings maintains strict quality and safety standards across every project. Each installation is documented through CompanyCam™ photo reporting for full transparency and accountability. All systems are installed in accordance with manufacturer specifications and KCDA contract requirements, ensuring compliance, performance, and long-term warranty protection.
KCDA Partnership Advantage
Through KCDA Contract #25-412, members can:
• Eliminate costly public bid processes
• Access competitively bid pricing and approved products
• Streamline procurement while ensuring state compliance
• Partner directly with a Washington-based, licensed, and insured contractor
Impervious Roof Coatings LLC
Protecting and preserving roofs across Washington, Oregon, and Idaho — available to support projects and partnerships nationwide through advanced fluid-applied systems.
Visit www.imperviousroofcoatings.com for product data, system specifications, and project profiles.