GenFlex

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.

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

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

• Commercial roofing systems
• TPO membranes
• EPDM membranes
• Modified bitumen roofing
• Roofing insulation boards

Headquarters

HQ city

Nashville

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. 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

Core 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

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• AmrizecoreStrategic or Co-development PartnerGenFlex 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

Emerging 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

• YouTubeyoutube.com/genflexroofing
• Facebookfacebook.com/genflexroofingsystems
• LinkedInlinkedin.com/company/genflex-roofing-systems-llc
• Xx.com/GenFlex

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GenFlex