GenFlex
GenFlex manufactures commercial single-ply and modified-bitumen roofing membranes (TPO, EPDM, APP/SBS), insulation, and components, distributing them across the US and Canada through national and regional wholesalers, a direct field sales force, and a certified Licensed Roofer program serving contractors and building owners.
- Company typePrivate
- Founded1981
- HeadquartersNashville, United States
- Headcount5,001–10,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What GenFlex does
GenFlex Roofing Systems LLC is a Nashville-headquartered manufacturer of commercial roofing membranes and related building-envelope products, founded in 1981 and operated today as a subsidiary within the Amrize family of building-materials brands. The company's core technology is single-ply and modified-bitumen roofing systems — Thermoplastic Polyolefin (TPO) membranes offered in bare-back, fleece-backed, and self-adhered variants, Ethylene Propylene Diene Monomer (EPDM) membranes, and APP and SBS modified bitumen (asphalt) membranes — engineered for UV resistance, puncture resistance, and energy-efficient performance. The portfolio is complemented by insulation and cover boards and an extensive components line covering adhesives, cleaners, fasteners, flashings, granules, penetrations, plates and bars, primers, sealants, tapes, vapor barriers, and walkway pads.
The company sells and supports its systems through a three-tier go-to-market: an extensive wholesale distributor network anchored by SRS Building Products, ABC Supply, and QXO (with regional distributors covering the long tail); a territory-based direct field sales force covering US states and Canadian provinces; and the GenFlex Licensed Roofer certification program that enables trained contractors to offer a GenFlex-inspected full-system warranty. Operations span the United States and Canada through a headquarters in Nashville, TN (26 Century Blvd. Suite 205) and a Canadian headquarters in Mississauga, ON (6509 Airport Rd). Supporting services include the Pre-Install Notice (PIN) online system for warranty project registration and inspection tracking, Building Products University (BPU) for online contractor and architect training, and Build America, Buy America (BABA) and American Iron and Steel certification for federal infrastructure projects.
Revenue is generated through hardware sales of roofing materials via distributors and direct channels, with quote-based pricing disclosed only through sales representatives and distributors rather than public pricing. Target customer segments include commercial building owners seeking warranty-backed roof protection, licensed roofing contractors requiring reliable products and system warranty support, architects and design professionals specifying roofing systems, and building-materials distributors stocking commercial roofing SKUs. The company has been in continuous operation for over 40 years and has not disclosed any external funding events, mergers, acquisitions, or leadership changes in the source materials.
GenFlex firmographics
Firmographics- Name
- GenFlex
- Legal name
- GenFlex Roofing Systems LLC
- Website
- https://genflex.com
- Company type
- Private
- Founded year
- 1981
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Short description
- GenFlex manufactures commercial single-ply and modified-bitumen roofing membranes (TPO, EPDM, APP/SBS), insulation, and components, distributing them across the US and Canada through national and regional wholesalers, a direct field sales force, and a certified Licensed Roofer program serving contractors and building owners.
- Ownership category
- akta.pro rank
GenFlex industry classification
Industry- Product category
- Commercial Roofing Materials
- NAICS
- Asphalt Shingle and Coating Materials Manufacturing (324122)
- SIC
- Asphalt Paving & Roofing Materials (2950)
- akta.pro primary industry
- Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied) (IMAFAMAA)
- akta.pro secondary industries
- Single-Ply Membranes (TPO/PVC/EPDM) (IMADAFAF), Modified Bitumen Roofing (IMADAFAG), Roofing Adhesives, Sealants & Leak Repair (IMADAOAF), Flashing, Edge Metal & Roof Accessories (IMADAFAJ)
Keywords
Where GenFlex is headquartered
LocationHeadquarters
- HQ city
- Nashville
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
GenFlex business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Roofing Materials Sales: GenFlex generates revenue through the sale of commercial roofing materials including TPO membranes, EPDM membranes, asphalt membranes (APP/SBS), insulation & cover boards, and components (adhesives, cleaners, fasteners, flashings, primers, sealants, tapes, vapor barriers, walkway pads). Products are sold through a distributor network and directly to licensed roofing contractors.
Go-to-market motion2 records
Distribution channels6 records
Marketing channels7 records
GenFlex product offering
Product offeringCore offering
GenFlex manufactures and sells commercial roofing systems including TPO single-ply membranes (bare-back, fleece-backed, self-adhered), EPDM membranes, and modified bitumen asphalt membranes (APP and SBS). The product portfolio is complemented by insulation and cover boards plus an extensive components catalog (adhesives, cleaners, fasteners, flashings, sealants, vapor barriers, walkway pads). The company also provides Full System and Registered Product warranties, contractor training, and project registration via its Pre-Install Notice (PIN) System.
Product overview
GenFlex is a commercial roofing materials company offering a comprehensive portfolio of single-ply and modified bitumen roofing systems. The core product lines include TPO membranes (available in bare-back, fleece-backed, and self-adhered options), EPDM membranes, and Asphalt membranes (APP and SBS modified bitumen). These are complemented by insulation & cover boards for thermal performance and an extensive components catalog covering adhesives, cleaners, fasteners, flashings, granules, penetrations, plates & bars, primers, sealants, tapes & strips, vapor barriers, and walkway pads. The company also provides warranty programs (Full System Warranty for Licensed Roofers and Registered Product Warranty), contractor training through the GenFlex Licensed Roofer Program, project registration via the Pre-Install Notice (PIN) System, and online education through Building Products University. GenFlex has been a respected brand since 1981 and is part of the Amrize family of brands.
Differentiator
Problem solved
Functional benefit
Products and services
- GenFlex TPO Membranes Single-ply TPO (Thermoplastic Polyolefin) membranes designed to resist UV, heat, and impact while providing energy-efficient cooling. Available in bare-back, fleece-backed, and self-adhered options for fast and clean installation. Sold to commercial roofing contractors, distributors, and building owners for low-slope commercial roofing applications.
- GenFlex EPDM Membranes Single-ply EPDM (Ethylene Propylene Diene Monomer) membranes engineered to resist punctures, UV, and temperature extremes for long-term performance. Sold to commercial roofing contractors, distributors, and building owners for low-slope commercial roofing applications.
- GenFlex Asphalt Membranes (APP & SBS) APP and SBS modified bitumen membranes combining strength, flexibility, and multiple layers of protection to handle harsh weather, tight schedules, and demanding jobs. Sold to commercial roofing contractors, distributors, and building owners for low-slope commercial roofing applications.
- GenFlex Insulation & Cover Boards High-efficiency roofing insulation and cover board options designed to add R-value and provide a flat, stable surface for a variety of roof types. Sold to commercial roofing contractors and building owners as a complement to GenFlex membrane systems.
- GenFlex Components (Adhesives, Cleaners, Fasteners, Flashings, Granules, Penetrations, Plates & Bars, Primers, Sealants, Tapes & Strips, Vapor Barrier, Walkway Pads) Extensive selection of membrane-specific and general components, accessories, and installation tools for GenFlex roofing systems, including adhesives, cleaners & washes, fasteners, flashings, granules, penetrations, plates & bars, primers, sealants, tapes & strips, vapor barriers, and walkway pads. Sold to commercial roofing contractors and distributors to complete system installations.
- GenFlex Full System Warranty Comprehensive warranty covering both materials and workmanship when the roof is installed by a GenFlex Licensed Roofer and inspected by GenFlex. Available to commercial building owners whose roof systems meet program requirements.
- GenFlex Registered Product Warranty Product warranty covering the GenFlex materials used in an installation, ensuring the roofing products are free from manufacturing defects. Available to commercial building owners whose roof systems are registered with GenFlex.
- GenFlex Training & Events Paid training offering covering installation best practices, system nuances, building science, and field-proven tips. Delivered via in-person sessions and on-demand courses through the Building Products University online platform. Targeted at commercial roofing contractors and design professionals.
Quantifiable outcome
- Extensive product documentation: 1,600+ technical documents available in document library
Companies that use GenFlex
Customer profileSegments4 records
Ideal customer profiles5 records
GenFlex technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
GenFlex partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- AmrizecoreGenFlex is part of the Amrize family of brands, a larger roofing and building materials organization that includes multiple roofing companies. Amrize provides corporate infrastructure including careers page, terms of service, and branding for its portfolio companies.
Scale indicators1 record
Recent moves6 records
Expansion highlights5 records
GenFlex competitors and assessment
Company assessmentEmerging players
- IB Roof Systems: IB Roof Systems manufactures PVC and TPO single-ply membranes for commercial and residential low-slope roofing with a focus on contractor certification and warranty programs. Comparable niche positioning to GenFlex's Licensed Roofer approach with a smaller market footprint.
Direct peers
- Siplast: Siplast manufactures SBS and APP modified bitumen membranes plus roof insulation systems for commercial low-slope applications, directly overlapping GenFlex's asphalt membrane line. Targets similar commercial contractors and design professionals.
- Mule-Hide Products: Mule-Hide manufactures TPO, EPDM, and modified bitumen low-slope roofing membranes sold through independent distributors and the ABC Supply network. Highly comparable in size, product mix, and distribution model to GenFlex.
- Firestone Building Products: Firestone Building Products (now owned by Holcim/Aamrize) manufactures EPDM, TPO, and modified bitumen commercial roofing systems with similar product breadth to GenFlex, competing head-to-head in the same contractor and distributor network.
- Duro-Last Roofing: Duro-Last manufactures PVC single-ply roofing membranes and custom-fabricated roofing systems for commercial buildings, competing with GenFlex in the single-ply category. Sells through authorized contractors and provides system warranties similar to GenFlex's offering.
- Versico Roofing Systems: Versico is a Carlisle private-label brand offering EPDM, TPO, and PVC single-ply roofing membranes through independent distributors and certified contractors. Competes directly with GenFlex in the commercial single-ply market with similar contractor-certification economics.
- Carlisle Construction Materials: Carlisle SynTec is the leading US manufacturer of single-ply EPDM and TPO commercial roofing membranes, plus insulation and accessories. It is GenFlex's most direct competitor in TPO/EPDM systems and shares the same distributor channels (ABC Supply, SRS).
Broad incumbents
- GAF Commercial Roofing: GAF, a Standard Industries company, manufactures TPO and PVC single-ply membranes as part of a broader commercial and residential roofing portfolio. It is a much larger incumbent competing with GenFlex in TPO with greater R&D and distribution resources.
- Tremco Roofing: Tremco Roofing offers modified bitumen, single-ply, and built-up roofing systems along with a wide range of building envelope solutions as part of Tremco Construction Products Group. Competes with GenFlex in commercial roofing membranes as part of a broader portfolio.
- Johns Manville Roofing Systems: Johns Manville offers TPO, EPDM, and modified bitumen commercial roofing membranes plus insulation, competing directly with GenFlex's full portfolio. As a Berkshire Hathaway-owned broad building products incumbent, it has greater scale and insulation cross-selling capability.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
GenFlex social profiles
Digital presenceGenFlex compliance and trust
Trust signalCompliance2 records
GenFlex financial estimates
Financial estimateRevenue estimate
Valuation estimate
GenFlex leadership team
Management profileNumber of profiles
GenFlex funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
GenFlex M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about GenFlex
What does GenFlex do?
GenFlex manufactures and sells commercial roofing systems including TPO single-ply membranes (bare-back, fleece-backed, self-adhered), EPDM membranes, and modified bitumen asphalt membranes (APP and SBS). The product portfolio is complemented by insulation and cover boards plus an extensive components catalog (adhesives, cleaners, fasteners, flashings, sealants, vapor barriers, walkway pads). The company also provides Full System and Registered Product warranties, contractor training, and project registration via its Pre-Install Notice (PIN) System.
Is GenFlex a public or private company?
GenFlex is a private company. It is classified as corporate owned and is currently operating.
When was GenFlex founded?
GenFlex was founded in 1981. It employs 5,001 to 10,000 people.
Where is GenFlex based?
GenFlex is headquartered in Nashville, United States, in the North America region.
How does GenFlex make money?
One revenue line is on record: roofing Materials Sales.
Who are GenFlex's main competitors?
IB Roof Systems is listed as an emerging player. Direct peers are Siplast, Mule-Hide Products, Firestone Building Products, Duro-Last Roofing, Versico Roofing Systems and Carlisle Construction Materials. Broad incumbents are GAF Commercial Roofing, Tremco Roofing and Johns Manville Roofing Systems.
Does GenFlex have an API?
No public API is recorded for GenFlex.
What industry is GenFlex in?
GenFlex's product category is Commercial Roofing Materials. Its primary akta.pro industry code is IMAFAMAA, Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied), with a secondary code of IMADAFAF, Single-Ply Membranes (TPO/PVC/EPDM). Its NAICS code is 324122 and its SIC code is 2950.