What Kalzip does

Kalzip GmbH is a German manufacturer of aluminum building envelope systems, founded in 1968 and headquartered in Koblenz. The company produces roll-formed aluminum standing seam roofing, facades, and complementary accessories (warm roof, energy-saving roof, ventilated roof, solar-integrated, green roof, and free-form geometries; profiled, standing seam, perforated, sound-insulating, and tinsmith facade systems), using up to 98% recycled aluminum and a proprietary polymer clip technology that minimizes thermal bridging. Its core IP also includes the FlexForm® facade profile, which allows targeted bending of aluminum sheets to realize complex architectural geometries, and the AluPlusSolar integrated solar mounting system.

Kalzip sells primarily on a project-based B2B model, quoting per project and serving architects, building planners, and certified installers (Verarbeiter) across commercial, industrial, public, sports, transportation, healthcare, and residential construction. Distribution runs through direct international sales offices and a globally available fleet of mobile roll-forming production units, now supplemented by Tremco Construction Products Group's North American distribution following RPM International's March 31, 2026 acquisition of Kalzip for approximately EUR 75 million. Revenue is generated from one-time system sales (roof profiles, facade profiles, accessories, and complete systems), with no subscription or recurring-license component disclosed.

The company is differentiated by long-proven durability (50+ year service life confirmed by Germany's Federal Institute for Materials Research and Testing), hurricane and fire certifications (Florida TAS, BR135:2013), German General Building Approvals (Z-14.1-181, Z-14.4-560, Z-14.9-787), ISO 9001/14001/45001 certifications, DGNB Navigator listing, and a portfolio of landmark reference projects including the Louisiana Superdome and Santiago Bernabéu Stadium. Leadership comprises CEO Andrew Leach and Managing Director Dr. Michael Leitner, both retained through the 2026 ownership transition.

Name

Kalzip

Legal name

Kalzip GmbH

Website

https://kalzip.com

Company type

Private

Founded year

1968

Operating status

Acquired

Headcount range

101–250 employees

Short description

Kalzip GmbH is a German manufacturer of aluminum roofing and facade systems, founded in 1968, selling project-based building envelope solutions (standing seam roofs, facades, solar-integrated and green roofs) to architects, planners, and installers across Europe, India, and North America, now owned by Tremco CPG / RPM International.

Ownership category

akta.pro rank

Product category

Architectural Aluminum Building Envelopes

NAICS

Aluminum Sheet, Plate, and Foil Manufacturing (331315)

SIC

Fabricated Structural Metal Products (3440)

akta.pro primary industry

Metal Roofing Systems (IMADAFAB)

akta.pro secondary industries

Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied) (IMAFAMAA), Flashing, Edge Metal & Roof Accessories (IMADAFAJ), Aluminum Value-Added Components (Automotive, Aerospace, Packaging, Building Systems) (IMAKACAM)

Keywords

• Aluminum roofing systems
• Metal facade systems
• Standing seam roofing
• Building envelope solutions
• Aluminum profile sheets

Headquarters

HQ city

Koblenz

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aluminum Roofing Systems: Sale of aluminum roof systems including warm roof, energy-saving roof, ventilated roof systems, roof refurbishment, solar roof, natural roof system, standing seam roof. Revenue from product sales and system components.
2. Aluminum Facade Systems: Sale of aluminum facade systems including smooth sheet metal facade, profiled facade, folded facade, standing seam facade, tinsmith facade, perforated facade, FC sound insulation facade. Revenue from product sales and system components.
3. System Accessories and Components: Sales of roof profiles, accessories for roof systems, accessories for solar systems, and facade profiles.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Kalzip manufactures and sells aluminum roofing and facade systems for new build and renovation projects, produced on modern roll-forming lines at its Koblenz, Germany headquarters. Its portfolio includes warm roof, energy-saving, ventilated, solar-integrated, green/natural, standing seam, free-form and roof refurbishment systems, alongside facade systems such as smooth sheet metal, profiled, FlexForm folded, standing seam, tinsmith, perforated, FC soundproof and rainscreen facades. Products are made from up to 98% recycled aluminum and are sold with project-based quoting, supported by international sales offices and mobile production units.

Product overview

Kalzip is a German manufacturer of aluminum roofing and facade systems, founded in 1968 and headquartered in Koblenz, Germany. The company offers a comprehensive portfolio of building envelope solutions consisting of two main product lines: Roof Systems (Dachsysteme) and Facade Systems (Fassadensysteme). The roof systems include warm roofs, energy-saving roofs, ventilated roofs, solar roofs, natural/green roofs, standing seam roofs, and free-form roofs for complex geometries. The facade systems include smooth sheet metal, profiled, folded (FlexForm), standing seam, tinsmith, perforated, and soundproof (FC) facades. Products are manufactured from up to 98% recycled aluminum with over 50 years proven service life. Kalzip operates globally with distribution offices and mobile production units worldwide, and was acquired by Tremco Construction Products Group (RPM International) in March 2026.

Differentiator

Problem solved

Functional benefit

Brands

• Kalzip FlexForm®: A contemporary evolution of the TF800R system, offering architects greater design freedom through targeted bendings for versatile and individual facade designs.

Products and services

• Kalzip Warmdach (Warm Roof System) A roof system providing thermal insulation and weather protection, combining aluminum's lightweight properties with durable construction for commercial, industrial, residential, and public buildings.
• Kalzip Energiespardach (Energy-Saving Roof) Energy-efficient aluminum roof system designed to minimize heat loss and optimize thermal performance for sustainable building construction.
• Kalzip Belüftete Dachsysteme (Ventilated Roof Systems) Aluminum roof systems with integrated ventilation channels that prevent moisture buildup and enhance thermal efficiency for commercial and residential buildings.
• Kalzip Dachsanierung (Roof Refurbishment System) Aluminum roof renovation solutions that bring existing damaged or aging roofs up to current energy standards while delivering the proven 50+ year durability of Kalzip standing seam systems.
• Kalzip Solardach (Solar Roof System) Aluminum roof system integrated with solar mounting solutions, including the AluPlusSolar system, enabling coordinated solar arrays to be retrofitted even on structurally challenging roof constructions.
• Kalzip Naturdach System (Natural/Green Roof System) Green roof system combining modern aluminum roofing technology with ecological benefits, providing summer heat protection and water retention during heavy rainfall.
• Kalzip Freiform Dachsystem (Free-Form Roof System) Flexible aluminum roof system designed for complex architectural geometries, allowing architects creative freedom for non-standard building forms.
• Kalzip Stehfalz Dach (Standing Seam Roof System) Traditional standing seam aluminum roof system proven since the late 1960s, offering 50+ years of service life with minimal wear and successful Florida TAS hurricane resistance certification.
• Kalzip Glattblechfassade (Smooth Sheet Metal Facade) Aluminum facade system featuring smooth sheet surfaces for modern architectural aesthetics on commercial, public, and residential buildings.
• Kalzip Profilierte Fassade (Profiled Facade) Aluminum facade system with profiled panels providing architectural depth, rhythm, and design flexibility for modern building envelopes.
• Kalzip FlexForm Facade Modern profiled aluminum facade system, evolved from the TF800R, allowing targeted bending for varied and individual designs with rhythm, depth, and geometry.
• Kalzip Stehfalz Fassade (Standing Seam Facade) Standing seam aluminum facade system applying Kalzip's proven roof standing seam technology to vertical wall applications.
• Kalzip Spenglerfassade (Tinsmith Facade) Traditional metalworking-style aluminum facade system for architectural applications requiring classic tinsmith detailing.
• Kalzip Perforierte Fassade (Perforated Facade) Aluminum facade system with perforated panels used for decorative effects, solar shading, or acoustic applications.
• Kalzip Fassadensanierung (Facade Refurbishment) Aluminum facade renovation solutions that bring existing building envelopes up to modern energy efficiency and aesthetic standards efficiently.
• Kalzip FC Schallschutzfassade / FC Rainscreen System (Soundproof and Rainscreen Facade) Sound-absorbing aluminum rainscreen facade system providing weather protection, thermal efficiency, and fire behavior classification in accordance with BR135:2013 Annex B.

Quantifiable outcome

• Up to 98% recycled aluminum content reducing CO₂ emissions compared to primary aluminum production
• +3 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Tremco Construction Products Group (CPG)coreStrategic or Co-development Partner · 31 March 2026RPM International's Tremco Construction Products Group completed acquisition of Kalzip GmbH on March 31, 2026 for approximately EUR 75 million. The acquisition aims to expand Tremco CPG's building envelope portfolio and global presence, especially in Europe and international markets, while enabling Kalzip's products to reach North American customers. Andrew Leach and current senior management team remain with the business.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Others

• Novelis: World's largest aluminum sheet roller and recycler; key upstream supplier of flat-rolled aluminum that Kalzip roll-forms into roofing profiles. Strategically relevant as a sourcing partner and as a reference for recycled aluminum availability.

Regional players

• Tata BlueScope Steel: India-focused metal building products joint venture offering coated steel roofing and wall systems; comparable product category but regional scope limits head-to-head competition with Kalzip.

Broad incumbents

• MBCI: Major US metal roofing and wall systems manufacturer offering comparable standing seam and architectural panel products to Kalzip, focused on commercial and industrial buildings.
• Centria: US-based metal building envelope systems manufacturer (now part of Cornerstone Building Brands), offering architectural metal wall and roof systems comparable to Kalzip's facade and standing seam offerings in the North American market.
• Kingspan Group: Global building envelope leader offering insulated panels, roofing, and facade systems; overlaps with Kalzip on commercial roofing and facade specification but at much larger scale and broader product breadth.
• Arconic: Global aluminum products manufacturer producing architectural aluminum sheet used in building envelopes; upstream of but strategically adjacent to Kalzip in the aluminum construction value chain.
• Firestone Metal Products: Manufacturer of metal roofing panels and systems under the UNA-CLAD and Firestone brands; competing with Kalzip in architectural standing seam and flat-lock metal roofing in North American commercial projects.

Direct peers

• Aluform System: Germany-based producer of aluminum roofing and facade systems, overlapping with Kalzip in roll-formed profiles, standing seam, and sandwich panel applications for commercial and industrial buildings.
• Zambelli: European metal roofing components and systems manufacturer with overlapping product range in standing seam, facade profiles, and roof accessories — a direct competitor in the German-speaking market.
• BEMO Systems: German manufacturer of aluminum standing seam roofing and facade systems directly competing with Kalzip on similar projects, with comparable roll-formed profiles and project-based delivery.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@kalzip
• Facebookfacebook.com/Kalzip
• LinkedInlinkedin.com/company/kalzip
• Instagraminstagram.com/kalzip
• Xx.com/kalzip_uk

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Kalzip