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Mar-flex Waterproofing & Building Products Mar-flex Waterproofing & Building Products
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42 Years
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Trusted Waterproofing Solutions for Commercial & Residential Projects
Founded in 1984, Mar-flex Waterproofing & Building Products has established itself as a leader in innovative waterproofing and building solutions. Our commitment to quality, affordability, and sustainability drives us to develop products that exceed industry standards while addressing the evolving needs of professionals and homeowners. With a focus on safety and durability, we offer a comprehensive range of waterproofing membranes, drainage systems, and air barrier products designed for both commercial and residential applications. Our team of experts provides 24/7 job site support and technical guidance, ensuring clients receive tailored solutions that meet their specific project requirements. Recognized for excellence, including the 2007 Experts Choice Award for our ShockWave Drainage Board, we continue to innovate from our state-of-the-art facilities in Southwest Ohio.

As a trusted partner to architects, contractors, and builders, we prioritize LEED-certified products and sustainable practices, such as manufacturing recycled foundation drainage boards. Our dedication to customer satisfaction is reflected in our nationwide shipping capabilities and a 100% guarantee on product quality and performance. By combining decades of experience with cutting-edge research, we deliver waterproofing systems that protect structures from hydrostatic pressure, freeze/thaw cycles, and moisture damage. Whether addressing basement waterproofing challenges or commercial building envelopes, Mar-flex remains committed to raising the bar for safety, innovation, and environmental responsibility in the construction industry.
Services
Commercial Waterproofing Residential Waterproofing Basement Membranes Drainage Board Systems Air Barrier Products Egress Window Wells Foundation Vent Products Sustainable Building Solutions LEED-Certified Products Waterproofing Repair Kits
Details
  • Year established: 1984
Highlights and features
  • We provide 24/7 job site support for urgent waterproofing needs.
  • Our products include LEED-certified and 100% recycled materials.
  • Award-winning ShockWave Drainage Board recognized at World of Concrete.
  • Nationwide shipping with technical specifications available for all products.
  • State-of-the-art facilities ensure rigorous quality control and innovation.
Associations and certifications
  • LEED Certified
  • ICC Evaluation Service (ICC-ES)
Update Listing
Services
Commercial Waterproofing
Our commercial waterproofing solutions safeguard structures against water intrusion with advanced membranes and drainage systems. Designed for high-traffic environments, these products resist hydrostatic pressure and freeze/thaw cycles while maintaining flexibility. Ideal for foundations, retaining walls, and plaza decks, our systems ensure long-term durability and compliance with building codes.
Residential Waterproofing
Residential waterproofing protects homes from moisture damage with Bentonite membranes, liquid coatings, and egress window wells. These solutions create dry, habitable basements by preventing water seepage and mold growth. Easy-to-install systems like our DIY Crack Injection Kit empower homeowners to address minor repairs independently.
Drainage Board Systems
Drainage boards redirect water away from foundations using dimpled polystyrene cores bonded to filter fabric. This prevents soil saturation and hydrostatic pressure buildup while protecting waterproofing membranes. LEED-certified options like ArmorDrain 110 offer cost-effective, eco-friendly protection for residential and commercial projects.
Air Barrier Products
Air barrier systems prevent uncontrolled airflow through building envelopes using self-adhering membranes like ArmorFlash Transition Strips. These products enhance energy efficiency by sealing joints and transitions in walls, roofs, and foundations while maintaining vapor permeability to avoid moisture trapping.
Sustainable Building Solutions
Our recycled materials, including Geo-Mat drainage rolls and TopGun Board, reduce environmental impact without compromising performance. Products like Mar-flex 5000 with 20% recycled content and ShockWave Drainage Board support LEED certification by minimizing waste and promoting resource efficiency in waterproofing applications.
People
Brett Oakley
Founder
Brett Oakley founded Mar-flex in 1984 after a career as a volunteer firefighter. Motivated by safety concerns, he developed waterproofing products that improve building resilience. His leadership established Mar-flex as an industry innovator with a focus on quality and sustainability.
Questions
What waterproofing solutions do you offer for commercial buildings?
We provide membranes, drainage boards, and air barriers designed for commercial applications, including plaza decks, foundation walls, and building envelopes.
Do you have residential waterproofing products for homeowners?
Yes, we offer basement membranes, egress window wells, and DIY repair kits to protect homes from water damage and moisture intrusion.
Are your products environmentally friendly?
Many products, including Geo-Mat drainage boards and Mar-flex 5000 membranes, contain recycled materials and contribute to LEED certification.
Can I get technical support for waterproofing projects?
Our team offers 24/7 job site support, LEED certification guidance, and in-market sales assistance for all waterproofing needs.
How do drainage boards protect foundations?
Drainage boards channel water away from walls, reduce hydrostatic pressure, and prevent membrane damage using dimpled cores and filter fabric layers.
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