Alujet

Building Construction Materialsalujet.de

ALUJET GmbH is a privately held German manufacturer of construction films, membranes, and sealing products serving roofers, construction companies, and building contractors across German-speaking European markets with certified building envelope solutions.

Company typePrivate
Founded-
HeadquartersMammendorf, Germany
Headcount1–10
GTM typeB2B
OfferingHardware or Manufacturing

What Alujet does

ALUJET GmbH is a privately held German manufacturer of high-tech building systems headquartered in Mammendorf, Germany, operating under sole managing director Reinhard Weigl. The company specializes in construction films, membranes, and sealing products that address moisture protection, waterproofing, thermal insulation, and sound reduction across the building envelope. Its product portfolio spans seven application areas (pitched roofs, flat roofs, facades, moisture protection, floors, walls, and insulation technology) with more than 80 SKUs, including underlayment membranes, vapor barriers, damp proof courses, sealing tapes, pipe insulation claddings, and complementary accessories.

The company's underlying technology centers on proprietary composite material formulations, including multi-layer bitumen-free and PVC-free membranes, self-adhesive systems with slit release liners, heat-reflecting aluminum composites, and ECO-certified low-emission chemistries. Notable technical differentiators include the patented ALUJET Montape partition wall tape and the ALUJET Floorjet SPEED system, a 5-layer fully self-adhesive composite for floor slab waterproofing. Products carry multiple European certifications (CE marking, ECO-Zertifikat, EC1 Plus, Sentinel Haus Institut) and comply with DIN EN standards including DIN 18533 and DIN 18195.

ALUJET generates revenue through direct B2B hardware sales of physical construction materials to building professionals (roofers, construction companies, building contractors) in German-speaking European markets, using a quotation-based pricing model with multi-year contracts. Distribution relies on direct sales, the company website (alujet.de), the interactive Das Interaktive Haus digital product guide, and participation in construction industry trade shows. The company has no disclosed subsidiaries, no funding history, no M&A activity, and operates as an independently owned GmbH.

Alujet firmographics

Firmographics

Name: Alujet
Legal name: ALUJET GmbH
Website: https://alujet.de
Company type: Private
Operating status: Operating
Headcount range: 1–10 employees
Short description: ALUJET GmbH is a privately held German manufacturer of construction films, membranes, and sealing products serving roofers, construction companies, and building contractors across German-speaking European markets with certified building envelope solutions.
Ownership category
akta.pro rank

Alujet industry classification

Industry

Product category: Building Construction Materials
NAICS: Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing (326113), Paint, Coating, and Adhesive Manufacturing (3255)
SIC: Unsupported Plastics Film & Sheet (3081), Adhesives & Sealants (2891)
akta.pro industry: PRIMARYIMADAGAI
Air Sealing Membranes, Tapes & Gaskets (Air Barriers)
Industrials, Manufacturing & Construction/Building Materials & Products/Insulation & Weatherization Materials
SECONDARYIMADAFAI
Roof Underlayment & Vapor Barriers
Industrials, Manufacturing & Construction/Building Materials & Products/Roofing Materials & Systems
SECONDARYIMADAOAF
Roofing Adhesives, Sealants & Leak Repair
Industrials, Manufacturing & Construction/Building Materials & Products/Construction Adhesives, Sealants & Waterproofing Products
SECONDARYIMAEAGAB
Industrial & Protective Coatings
Industrials, Manufacturing & Construction/Chemicals & Industrial Materials/Coatings, Adhesives & Sealants

Keywords

Construction membranes
Waterproofing systems
Vapor barriers
Roof underlayment
Building sealing films

Where Alujet is headquartered

Location

Headquarters

HQ city: Mammendorf
HQ country: Germany
HQ region: Europe

Offices1 record

Markets served

Alujet business model

Business model

GTM type: B2B
Offering type: Hardware or Manufacturing
Cost components: Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

Building Construction Materials Sales: ALUJET GmbH generates revenue through the manufacture and sale of construction films, membranes, sealing products, and insulation accessories to building professionals. Products are sold through direct sales channels with pricing provided via quotation or distributor networks.

Pricing tiers

Model	Billing	Price
Other	Multi-year contract	B2B quotation-based pricing for construction professionals

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Alujet product offering

Product offering

Core offering

ALUJET GmbH manufactures and sells construction films, membranes, sealing products, and insulation accessories used in building envelopes. The portfolio covers underlayment and vapor control membranes for pitched and flat roofs, facade membranes, moisture protection systems, sealing membranes and damp proof courses for walls and floor slabs, plus cladding films and sound-reduction products for insulated pipework. Products are sold to building professionals such as roofers, construction companies, and contractors in the European construction market.

Product overview

Alujet GmbH is a German manufacturer of High-Tech Building Systems specializing in construction films, membranes, and sealing products. The product portfolio spans seven main application areas: Steildach (pitched roofs) with Unterspannbahnen/Unterdeckbahnen underlayment membranes, Dampfbremsen vapor brakes, Dampfsperren vapor barriers, First- und Gratrollen ridge rolls, and Klebe- und Dichttechnik adhesive/sealing products; Flachdach (flat roofs) with Dampfbremsen and Dampfsperren; Fassade (facades) with Fassadenbahn facade membranes; Feuchteschutz (moisture protection) with Rainguard; Boden (floors) with Floorjet sealing membranes, Abdeckbahnen covering membranes, Jetfoam insulation, and Zubehör accessories; Wand (walls) with Walljet ALU and Walljet PP damp proof courses; and Isoliertechnik (insulation technology) with Isofol SE, Grobkornfolie, Aluminiumfolie, Alufonik EP, and Glasgelege cladding films plus Klebe- und Dichttechnik and Zubehör. The core products include ALUJET Floorjet SPEED (ECO-certified sealing membrane for floor slabs), ALUJET Walljet ALU (ECO-certified aluminum composite damp proof course), ALUJET Isofol SE (PVC cladding film for pipe insulation), and various adhesive tapes and sealing products. The company also offers a digital tool called 'Das Interaktive Haus' as an interactive product guide. Products are primarily physical construction materials rather than software, with no API offering.

Differentiator

Problem solved

Functional benefit

Products and services

Pitched Roof Underlayment Membranes (Unterspannbahnen / Unterdeckbahnen)
Vapor Brake Membranes (Dampfbremsen)
Vapor Barriers (Dampfsperren)
Ridge and Hip Rolls (First- und Gratrollen)
Roof Adhesive and Sealing Products (Klebe- und Dichttechnik)
Roof Connection Rolls (Anschlussrollen)
Facade Membranes and Sealing Products
Moisture Protection (Feuchteschutz)
Floor Slab Sealing Membranes (Floorjet)
Floor Covering Membranes (Abdeckbahnen)
Floor Insulation (Jetfoam)
Floor Sealing Accessories and Adhesives
Floor System Accessories (Zubehör)
Wall Damp Proof Courses (Walljet)
Wall Partition Tapes (Trennwandband)
Pipe Insulation Cladding Films (Ummantelungsfolien)
Insulation System Adhesives and Tapes
Insulation System Accessories (Zubehör)
Das Interaktive Haus (Interactive House)

Quantifiable outcome

Products meet DIN EN standards, DIN 18533, DIN 18195, and carry general building authority test certificates (abP)
+2 more outcomes

Companies that use Alujet

Customer profile

Segments2 records

Ideal customer profiles1 record

Alujet technology and API

Technology

Technology focussed No

API detail

Has API: No
API docs
API detail

Core technology

AI maturity

App detail

Feature5 records

Alujet partnerships and signals

Strategic signal

Scale indicators1 record

Recent moves5 records

Expansion highlights3 records

Alujet competitors and assessment

Company assessment

Direct peers

SIGA: Swiss manufacturer of high-performance airtightness and windtightness sealing tapes, membranes, and adhesives for building envelopes. Closely comparable to ALUJET in product category (vapor barriers, sealing tapes, membranes), B2B-to-tradesperson go-to-market, and European premium positioning.
Paul Bauder: Leading German manufacturer of flat-roof and pitched-roof membranes, vapor barriers, and thermal insulation. Competes with ALUJET's Flachdach and Steildach membrane lines, though Bauder also offers rigid insulation which ALUJET does not.
Ampack: Swiss/German-Austrian manufacturer of building-envelope membranes, vapor barriers, and sealing systems. Directly comparable to ALUJET in product scope (roofs, walls, floors), premium technical positioning, and European B2B distribution to building professionals.
Dörken (DELTA): German manufacturer of DELTA-branded high-performance construction membranes, vapor barriers, and waterproofing sheets for roofs, walls, and basements. Directly competes with ALUJET Floorjet, Walljet, and roof-underlayment lines in the German-speaking market.
Pro Clima (Moll bauökologische Produkte): German manufacturer of airtightness, windtightness, and vapor-control systems for building envelopes. Closely comparable to ALUJET in the breathable-membrane and intelligent vapor-retarder categories and in the German-speaking premium-construction specifier channel.

Emerging players

GUTEX: German manufacturer of wood-fibre insulation boards with complementary underlayment and membranes for roof and facade applications. Comparable German premium B2B positioning and overlapping roof/facade membrane categories.

Broad incumbents

BMI Group (Braas Monier / Icopal): Large European roofing and waterproofing incumbent covering pitched-roof, flat-roof, and below-grade membranes. Competes with ALUJET in roof membranes but operates at significantly greater scale with full roofing-system portfolios.
Knauf Insulation: European insulation manufacturer with growing offering of membranes and sealing components adjacent to its core insulation products. Adjacent competitor to ALUJET in building-envelope systems.
Saint-Gobain (Isover): Global building-materials major offering insulation, vapor-control, and airtightness systems under the Isover brand. Overlaps with ALUJET's wall and roof airtightness category as part of a much broader portfolio.

Regional players

Folag: Swiss manufacturer of construction films, cover foils, and protective membranes for building applications. Comparable specialty-film product category and small-to-mid European B2B manufacturer profile.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Alujet financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Alujet leadership team

Management profile

Number of profiles

Profiles1 record

Alujet funding detail

Funding detail

Funding overview

Funding rounds

Investors

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

Alujet M&A and investment

M&A and investment

M&A

Investments

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

Frequently asked questions about Alujet

What does Alujet do?

Is Alujet a public or private company?

Alujet is a private company. It is classified as founder individual operated bootstrapped and is currently operating.

When was Alujet founded?

Alujet was founded in -1. It employs 1 to 10 people.

Where is Alujet based?

Alujet is headquartered in Mammendorf, Germany, in the Europe region.

How does Alujet make money?

One revenue line is on record: building Construction Materials Sales.

Who are Alujet's main competitors?

Direct peers on record are SIGA, Paul Bauder, Ampack, Dörken (DELTA) and Pro Clima (Moll bauökologische Produkte). GUTEX is listed as an emerging player. Broad incumbents are BMI Group (Braas Monier / Icopal), Knauf Insulation and Saint-Gobain (Isover). Folag is listed as a regional player.

Does Alujet have an API?

No public API is recorded for Alujet.

What industry is Alujet in?

Alujet's product category is Building Construction Materials. Its primary akta.pro industry code is IMADAGAI, Air Sealing Membranes, Tapes & Gaskets (Air Barriers), with a secondary code of IMADAFAI, Roof Underlayment & Vapor Barriers. Its NAICS code is 326113 and its SIC code is 3081.