General Membrane

What General Membrane does

General Membrane S.p.A. is an Italian manufacturer of waterproofing membranes and integrated roofing systems, founded in 1993 and headquartered in Ceggia (Venice) with a second production site in Buzău, Romania. The company designs, produces, and sells bituminous waterproofing membranes in SBS, APP, and APAO polymer-modified variants, water-based liquid waterproofing systems (the Ecoliquids line), thermal insulation panels, and accessories. Its differentiated systems include the patented General Solar PV flexible waterproof-photovoltaic system, the General FIX non-penetrating rooftop anchoring system for traditional PV modules, the N.E.W. (Never Ending Waterproofing) comprehensive design-to-maintenance system with 20-year insurance backing, and the Greentank self-healing foundation system using General Easy Seal hydro-reactive technology.

The company generates revenue primarily through direct B2B sales to the construction industry, reaching five distinct personas — designers/architects, waterproofing applicators, retailers/distributors, general contractors, and end users — via its sales team, contact form, GM Webinar series, the BIMObject platform, and dedicated solutions tied to Italy's Superbonus 110% incentive programme. The Ecofriendly range, built on the proprietary H.R.C. (High Recycled Content) compound, captures demand for sustainable, CAM- and LEED-compliant waterproofing. General Membrane holds a deep stack of voluntary certifications (ISO 14001 since 2005, first-in-world ISO 14064 carbon-footprint certification in 2014, ISO 14021 since 2020, ISO 45001 since 2021) and is a member of the U.S. Green Building Council, with reference projects spanning Italy, Germany, and New Zealand, including the 25 MWp Interporto di Nola integrated PV installation — described as the world's largest of its kind.

Name

General Membrane

Legal name

General Membrane S.p.A.

Website

https://generalmembrane.it

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

51–100 employees

Short description

General Membrane is an Italian manufacturer, founded 1993, of waterproofing membranes (bituminous SBS/APP/APAO, liquid systems) and integrated waterproofing-photovoltaic roofing systems, serving construction professionals and building owners across Europe with select reference projects in Germany and New Zealand.

Ownership category

akta.pro rank

Product category

Waterproofing Membranes and Systems

NAICS

Asphalt Paving, Roofing, and Saturated Materials Manufacturing (32412), Paint, Coating, and Adhesive Manufacturing (3255), Paint and Coating Manufacturing (325510)

SIC

Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851), Miscellaneous Chemical Products (2890), Unsupported Plastics Film & Sheet (3081)

akta.pro primary industry

Waterproofing Membranes & Systems (Liquid-Applied & Sheet) (IMADAOAC)

akta.pro secondary industries

Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied) (IMAFAMAA), Concrete Repair, Sealing & Waterproofing (Coatings/Membranes) (IMAIAKAK), Waterproof Coatings & Leak Sealing (Basements, Foundations, Roof Coatings) (HSAGADAI)

Keywords

• Bituminous waterproofing membranes
• Polymer-modified membranes
• Liquid waterproofing systems
• Photovoltaic integrated roofing
• Thermal insulation panels

Headquarters

HQ city

Ceggia

HQ country

Italy

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Waterproofing Membranes and Systems Sales: General Membrane generates revenue through the manufacture and sale of bituminous membranes, liquid waterproofing products, synthetic membranes, thermal insulation panels, accessories, and integrated waterproofing systems (General Solar PV, General FIX, N.E.W., Greentank) to the construction industry. Products are sold through direct B2B engagement with waterproofing applicators, contractors, designers, and retailers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels9 records

Core offering

General Membrane S.p.A. designs, manufactures, and sells waterproofing membranes and integrated waterproofing systems for the construction industry. The portfolio includes bituminous membranes (SBS, APP, APAO polymer-modified compounds), liquid waterproofing systems, synthetic membranes (PVC, TPO), thermal insulation panels, and patented systems such as General Solar PV (photovoltaic-integrated roofing), General FIX (anchoring system), N.E.W. (lifecycle waterproofing), and Greentank (foundation waterproofing with hydro-reactive technology). Products are sold B2B to waterproofing applicators, contractors, designers, and retailers.

Product overview

General Membrane is an Italian manufacturer of waterproofing membranes and systems for the construction industry. The product portfolio is organized around four main system solutions (General Solar PV waterproofing photovoltaic system, General FIX roof anchoring system, N.E.W. comprehensive waterproofing system, and Greentank foundation waterproofing) supported by multiple membrane and coating product categories. Bituminous membranes are offered in SBS, APP, and APAO variants across product lines including VENUS, URANUS, LYBRA, MERCURY, PHOENIX, GALAXY, GEMINI, and ORION. The ECO-LIQUIDS line provides water-based liquid waterproofing solutions, while the Ecofriendly range offers membranes and insulation with high recycled content. Additional products include thermal insulation panels (ISOPUR, ISOXPS), protective and aluminum paints, and bituminous shingles. All products serve building waterproofing applications across residential, commercial, and industrial construction.

Differentiator

Problem solved

Functional benefit

Brands

• ECOFRIENDLY: An innovative range of bitumen polymer waterproofing membranes and thermal insulation with high recycled content, accompanied by self-declared environmental product claims according to UNI EN ISO 14021 certification.
• General Solar PV
• General FIX
• N.E.W. (Never Ending Waterproofing)
• Greentank
• ECO-LIQUIDS
• General Membrane Loves Earth

Products and services

• General Solar PV Flexible photovoltaic waterproofing system architecturally integrated into roofing. Allows electricity generation from renewable sources while providing waterproofing protection without roof penetration. Sold B2B to construction professionals for industrial, commercial, and logistics buildings.
• General FIX Anchoring system for traditional photovoltaic modules on roofs without drilling, preserving roof integrity and waterproofing while enabling secure module installation. Sold to contractors and installers integrating PV systems on existing or new roofs.
• N.E.W. (Never Ending Waterproofing) Comprehensive waterproofing system covering design, installation, insurance, and maintenance. Designed to ensure maximum durability with unique materials and a 20-year insurance-backed guarantee. Targeted at general contractors and end users requiring complete lifecycle coverage.
• Greentank Self-engaging and self-healing waterproofing system for foundations using General Easy Seal hydro-reactive technology. Pre-applied waterproofing solution for foundation and tanking applications. Sold to contractors and applicators for below-grade waterproofing.
• SBS Bituminous Membranes Polymer-bitumen waterproofing membranes using SBS (styrene-butadiene-styrene) compound with high cold flexibility and excellent stress resistance. Includes VENUS, URANUS, LYBRA, and MERCURY product lines. Sold B2B to waterproofing applicators and contractors.
• APP Bituminous Membranes Polymer-bitumen waterproofing membranes using APP compound with high temperature sealing capability. Includes PHOENIX, AURIGA, ORION, GEMINI, and COLUMBA product lines suitable for high-temperature operating conditions. Sold to contractors for roofs and foundations in warm climates.
• APAO Bituminous Membranes Polymer-bitumen waterproofing membranes using APAO compound combining high temperature resistance, low temperature flexibility (down to -35°C), and dimensional stability. Includes GALAXY and PHOENIX SUPER product lines. Sold for extreme-climate roofing applications.
• ECO-LIQUIDS Line Water-based liquid waterproofing solutions including General Ecoliquida, General Ecoliquid Super, General Ecoliquid Q-Flex, General Ecoliquid Alu, and General Ecoliquid Fiber. Designed for durability with reduced environmental impact and operator safety (non-flammable, usable in enclosed spaces).
• Ecofriendly Product Range Bitumen-polymer waterproofing membranes and thermal insulation with high recycled content. Includes Greenstar, Greenstar Mineral, Greenstar TA, Greenstar SA, Greenstar SA Mineral membranes, and Isopur/IsoXPS insulation panels. Compliant with Italian CAM regulations and LEED certification.
• Genesy - PVC and TPO Synthetic Membranes Synthetic PVC and TPO waterproofing membranes launched under the Genesy line, representing an expansion of the company's product portfolio beyond bituminous systems. Targeted at construction professionals seeking synthetic membrane solutions.
• GENERAL ISOPUR Thermal Insulation Panels Sandwich panel thermal insulation with rigid PIR foam core, CFC and HCFC-free. Available with bituminous felt-cardboard, bituminous glass fibre, or saturated glass fibre coating. Suitable for flat and sloped roofs in residential, commercial, and industrial buildings.
• GENERAL ISOXPS Thermal Insulation Panels Mono-layer thermal insulating panel made of rigid closed-cell extruded polystyrene foam (XPS) with extruded surface skin. Available in hinged, sharp-edged, or interlocking profiles for building thermal insulation.

Quantifiable outcome

• Reduces CO2 emissions by over 50,000 kg per year through the 200 KWp General Solar PV installation at the Ceggia production site
• +5 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature8 records

Partnerships

Three partnerships are on record, tiered core and flagship.

• BIMObjectcoreTechnology or Integration · 18 October 2019General Membrane joined the BIMObject platform in October 2019, making 10 technical specifications (capitolati) available to architects and designers for waterproofing project elaboration. The BIM objects contain product technical data, regulations, and detailed project drawings for all roof types.
• U.S. Green Building Council (USGBC)coreStrategic or Co-development PartnerGeneral Membrane joined USGBC (member since 2012) to promote sustainable building techniques. USGBC's LEED certification system evaluates building sustainability based on energy efficiency and ecological footprint. General Membrane products contribute to LEED certification credits.
• Codognotto GroupflagshipStrategic or Co-development PartnerGeneral Membrane is part of the Codognotto Group. The Group installed General Solar PV systems totaling 1,376 KWp across its logistics sites, covering 30% of Group energy needs. Demonstrates the parent company's commitment to the product line.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Mapei S.p.A. Italian-headquartered global construction-chemicals manufacturer with waterproofing, concrete repair, and finishing product lines. Direct domestic overlap with General Membrane in Italy and similar B2B contractor/distributor GTM motion.
• Sika AG: Swiss global specialty-chemicals incumbent with a broad roofing and waterproofing portfolio (including Sarnafil synthetic membranes). Significantly larger than General Membrane and competes across multiple product categories, including bituminous-adjacent systems.
• BASF Master Builders Solutions: Global construction-chemicals division offering waterproofing, sealing, and concrete-protection systems — competes with General Membrane at the contractor/specifier level and shares overlap in liquid waterproofing chemistry.

Direct peers

• Firestone Building Products (Holcim): Owner of the EPDM/rubber roofing legacy plus now TPO membranes, integrated into Holcim's roofing division — a direct competitor in flat-roof waterproofing membranes and PV-ready roofing systems.
• Index S.p.A. Italian bituminous membrane and waterproofing systems manufacturer — most direct domestic head-to-head competitor to General Membrane, with overlapping SBS/APP product ranges and similar Italian/European contractor channel.
• Renolit SE: German manufacturer of synthetic roofing and waterproofing membranes (PVC, TPO, EPDM) under the Renolit Alkorbright/Alkorplan brands — competes directly with the Genesy PVC/TPO line General Membrane just launched in late 2025.
• IKO PLC: International manufacturer of bituminous waterproofing membranes and roofing shingles with a strong presence in Europe — competes head-to-head with General Membrane's SBS/APP/APAO membrane lines and shingle products.
• Soprema Group: French-headquartered global manufacturer of bituminous waterproofing membranes, liquid waterproofing, and synthetic roofing systems — directly competing with General Membrane across SBS/APP bituminous lines and integrated roofing systems in Europe.
• Vedag GmbH (BMI): German bituminous membrane specialist (now part of BMI Group) — directly comparable to General Membrane on SBS/APP bituminous technology and is a frequent benchmark in European technical specifications.
• BMI Group: European flat-roof and pitched-roof waterproofing manufacturer (formerly Braas Monier / Icopal) offering bituminous and synthetic membranes plus integrated PV-ready roofing — a direct competitor in the same roof-systems category as General Membrane.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/GeneralMembrane
• Facebookfacebook.com/GeneralMembraneSpa
• LinkedInlinkedin.com/company/generalmembrane-spa?trk=tyah&trkInfo=tas%3Ageneralmembrane%2Cidx%3A1-1-1
• Instagraminstagram.com/generalmembranespa/?hl=it
• Xx.com/gm_spa

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 General Membrane