What Kerabit does

Kerabit is a Finnish construction and building materials company headquartered in Vantaa that designs, manufactures, sells, and installs bituminous roofing, waterproofing, facade, and surface-coating products and services for the Finnish market. The company operates an integrated product-plus-service model: it manufactures Kerabit-branded bitumen roofing products and proprietary items (including RipRap steel eaves elements and the Kerabit SolarFoot solar mounting anchor) at its Lohja production plant, and delivers installation, renovation, and maintenance services through dedicated divisions covering roofing (Kerabit Katto), facades (Kerabit Julkisivut), ship deck coatings (Kerabit Pinta), residential roof renovations (Kerabit Kattoremontit), and roof maintenance (Kerabit Kattohuolto). Sister companies EG-Trading (green building products) and Vesikattopalvelu (regional roofing) extend the offering into green roof systems and northern Finland respectively.

The company serves six primary customer segments: residential housing companies and individual homeowners, construction contractors and building material distributors (including hardware retail chains), the public sector (municipalities, schools, hospitals, heritage buildings), commercial real estate, industrial clients, and shipbuilding (cruise ship coatings via the Bolidt partnership). Revenue is generated through two streams: project-based construction and installation services (recognized on completion) and one-time product sales of Kerabit branded bitumen, Triflex liquid waterproofing, EPDM, RipRap, and accessory products. Pricing is predominantly quote-based; residential roof renovations typically run €80–120 per m² including VAT, commercial and housing-company projects are individually quoted, and solar installations carry 6–10 year ROI with self-cost electricity around 2.8–4 cents/kWh.

Kerabit was established in its current form in 2011 as Nordic Waterproofing (with roots in Lemminkäinen's waterproofing business dating to 1910), rebranded to Kerabit in 2023, and became part of Kingspan Group's roof and waterproofing division in March 2025. As of the data provided, the company reports €120 million in annual revenue, 620 employees across 7 subsidiaries, 19 offices, and 2 production plants operating exclusively in Finland.

Name

Kerabit

Legal name

Kerabit

Website

https://kerabit.fi

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Kerabit is a Finnish construction and building-materials company that designs, manufactures, and installs bituminous roofing, waterproofing, facade, and ship-deck coating products and services. It serves housing companies, contractors, public-sector clients, residential homeowners, and shipbuilders in Finland through 19 offices, 2 production plants, and 620 employees.

Ownership category

akta.pro rank

Product category

Roofing and Waterproofing Materials

NAICS

Asphalt Paving, Roofing, and Saturated Materials Manufacturing (32412), Asphalt Shingle and Coating Materials Manufacturing (324122), Roofing Contractors (238160), Roofing Contractors (23816)

SIC

Asphalt Paving & Roofing Materials (2950), Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851)

akta.pro primary industry

Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied) (IMAFAMAA)

Keywords

• Bitumen roofing products
• Roof waterproofing systems
• Roof renovation services
• Facade cladding solutions
• Green roof installation

Headquarters

HQ city

Vantaa

HQ country

Finland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Construction and installation services: Project-based revenue from roofing, waterproofing, facade construction, roof maintenance, and solar installation services. Revenue recognized upon project completion for construction contracts. Services provided to property owners, housing companies, contractors, and public sector.
2. Product sales: Sale of Kerabit branded bitumen roofing and waterproofing products, facade elements (RipRap), Triflex liquid waterproofing products, EPDM products, and related accessories. Products sold through hardware retail chains, building material distributors, and directly to contractors. Products manufactured at the Lohja production plant.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Kerabit designs, manufactures, sells, and installs bituminous roofing and waterproofing products along with facade and surface treatment systems. Its offering combines domestically manufactured bitumen membranes, prefabricated RipRap eaves elements, SolarFoot solar mounting systems, and Triflex liquid waterproofing with nationwide installation, renovation, and maintenance services delivered through specialized divisions in Finland.

Product overview

Kerabit operates as a construction and building materials company offering an integrated portfolio of roofing, waterproofing, facade, and surface treatment products and services in Finland. The offering is structured as a multi-brand ecosystem: Kerabit Tuotteet (products) manufactures domestic bitumen roofing and waterproofing products at the Lohja factory under brands including Kerabit, Triflex, and RipRap; while service divisions — Kerabit Katto, Kerabit Julkisivut, Kerabit Pinta, Kerabit Kattohuolto, Kerabit Kattoremontit, and Max — deliver installation, renovation, and maintenance services. The portfolio includes specialized sub-brands such as Kerabit Nature (low-carbon bitumen), Kerabit LESSNOX (air-purifying membrane), and Kerabit SolarFoot (ballast-free solar anchor), alongside complementary sister companies EG-Trading (green building) and Vesikattopalvelu (regional roofing). The company also provides ship deck coatings through Kerabit Pinta and solar installations via its service divisions.

Differentiator

Problem solved

Functional benefit

Brands

• Kerabit Nature: Low-carbon bitumen roofing products with approximately 25% lower carbon emissions during manufacturing compared to conventional bitumen products.
• Kerabit LESSNOX
• RipRap
• Kerabit SolarFoot
• Kerabit Aurinkokatto
• Nordic Green Roof

Products and services

• Kerabit Tuotteet (Bitumen Roofing and Waterproofing Products) Domestically manufactured bitumen roofing and waterproofing products, including eco-friendly solutions, produced at Kerabit's Lohja factory in Finland. Sold through hardware retail chains, building material distributors, and direct to contractors and consumers.
• Kerabit Katto (Roofing Contracting and Renovation Services) Nationwide roofing and renovation services for all roof types including bitumen, tile, metal, green, and element roofs, as well as courtyard decks and bridge waterproofing. For property owners, housing companies, contractors, and public sector clients.
• Kerabit Julkisivut (Facade Contracting and Cladding Services) Facade renovation and new building facade cladding services, specializing in metal facades and utilizing domestically produced RipRap eaves elements. For housing companies, public sector buildings, and commercial real estate.
• Kerabit Pinta (Ship Deck and Floor Coating Services) Floor and deck coating services for ships, including polyurethane and epoxy coatings for car decks, helipads, sun decks, balconies, swimming pools, and sports areas. Operates as the Nordic representative for Bolidt, the world's leading supplier of maritime coatings.
• Kerabit Kattohuolto (Roof Maintenance and Inspection Services) Roof inspection, maintenance, and repair services across Finland including condition assessments, annual maintenance for housing companies, tile and metal roof coating, moss removal, and gutter/turret safety products. Over 25,000 roof maintenance projects completed.
• Kerabit Kattoremontit (Residential Roof Renovation Services) Roof renovation services for single-family homes and terraced houses using Ruukki steel roofing products. Each project is assigned a dedicated roof manager (kattopäällikkö). Includes free roof assessment and OP bank financing options.
• Kerabit Max (Complex International Project Services) Service offering combining Kerabit's full portfolio with international contract, procurement, and process expertise for complex projects.
• Kerabit Nature (Low-Carbon Bitumen Roofing Products) Low-carbon bitumen roofing products with approximately 25% lower manufacturing carbon emissions compared to conventional bitumen products, incorporating bio-based and recycled materials. Available within the Kerabit product range.
• RipRap Eaves Elements (Prefabricated Steel Eaves) Proprietary factory-made steel eaves elements for fast and cost-effective eaves construction, made to exact measurements from galvanized steel or optionally aluminum, stainless steel, or copper. Enables 40–50 meters of finished eaves per day. Used in hundreds of industrial, commercial, and residential buildings.
• Green Roofs and Decks (Viherkatot ja kannet) Green roof products including Nordic Green Roof sedum mats grown by sister company EG-Trading in Tammisaari, Finland, plus root protection membranes and drainage solutions for stormwater management.
• Triflex Liquid Waterproofing Products High-quality liquid waterproofing products for roofs and foundations, including Triflex Details for detail waterproofing and Triflex Towersafe for wind turbines.

Quantifiable outcome

• Roof load reduced by up to 60% with SolarFoot mounting system compared to traditional ballast solutions
• +9 more outcomes

Named customers25 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Nordic Waterproofing GroupcoreStrategic or Co-development PartnerKerabit is part of Nordic Waterproofing Group, one of Europe's leading suppliers of waterproofing products and services for buildings and infrastructure. Nordic Waterproofing Group became part of Kingspan Group's roofing and waterproofing division in March 2025.
• Kingspan GroupcoreStrategic or Co-development PartnerKingspan Group is a global, Irish-listed company (Irish Stock Exchange). Nordic Waterproofing Group, including Kerabit, became part of Kingspan's roofing and waterproofing division in March 2025, making Kerabit part of a world-leading building materials group.
• EG-TradingminorStrategic or Co-development PartnerEG-Trading is a sister company within the group, offering a wide and diverse range of landscaping products and services. Supplies Nordic Green Roof® sedum mats for Kerabit's green roof installations.
• VesikattopalveluminorStrategic or Co-development PartnerFamily company with Kerabit, specializing in roofing installation, renovation, and maintenance services in the Kainuu and Koillismaa regions of Finland.
• Ruukki (part of SSAB)coreChannel Partner/ Reseller/ DistributorKerabit Kattoremontit is an Approved Ruukki Partner, installing Ruukki steel roofing products for residential properties. Ruukki is a leading Nordic steel roofing manufacturer. Products include vertical seam roofs, shaped roofs, and straight-edged roofs with up to 50-year warranties. Ruukki products carry the Avainlippu (Key Flag) mark.
• Rakennusliike Ripatti OyminorChannel Partner/ Reseller/ DistributorConstruction company Ripatti Oy is a long-term partner that has worked on several major projects with Kerabit, including the Jorvi Hospital expansion. Ripatti Oy has supplied RipRap eaves and safety railings for the ESS (European Spallation Source) project in Lund, Sweden.
• Hardware retailers and ironmonger chains (Rautakaupat)coreChannel Partner/ Reseller/ DistributorProducts distributed through hardware retail chains and building material distributors nationwide, serving both professional contractors and consumers. Products available at ironmonger stores across Finland.

Scale indicators9 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Carlisle Construction Materials: US-headquartered leader in EPDM, TPO, and modified bitumen roofing systems. A direct peer in commercial flat-roof membranes and a global benchmark for waterproofing scale.
• Soprema: French-headquartered global specialist in waterproofing, bitumen membranes, and insulation. A direct competitor in modified bitumen roofing and liquid-applied systems, similar in size and product mix to Kerabit Tuotteet.
• IKO: International manufacturer of bitumen roofing membranes, shingles, and waterproofing systems with operations across Europe and North America. A direct comparable in core bitumen roofing products and CE-marked membranes.
• Katepal Oy: Finnish bitumen shingle manufacturer and a home-market direct competitor to Kerabit Tuotteet. Operates in the same Finnish distribution and contractor ecosystem with overlapping product categories.
• Bauder: German family-owned manufacturer of bitumen and single-ply roofing membranes plus green-roof systems. Directly comparable in flat-roof waterproofing, sustainability-focused product lines, and combined product-plus-systems delivery.

Broad incumbents

• BMI Group: Europe's largest roofing and waterproofing manufacturer (formerly Braas Monier + Icopal). Operates bitumen, single-ply, and pitched-roof systems with a multi-country footprint that directly overlaps with Kerabit's bitumen and waterproofing portfolio.
• Sika AG: Swiss-listed global specialty chemicals company with a large roofing and waterproofing portfolio (Sarnafil, Sikaplan, SikaRoof). Competes with Kerabit across commercial flat-roof membranes and liquid-applied systems as a much larger incumbent.

Emerging players

• Renolit: European manufacturer of synthetic membranes (ALKORPLAN, ALKORTEC) for roofing and waterproofing. Comparable in single-ply and pool/specialty membranes; overlaps with Kerabit's EPDM and Triflex liquid product lines.

Regional players

• Tegola Canadese: Italian manufacturer of bitumen shingles and waterproofing membranes. Comparable in pitched-roof bitumen products and installer-channel distribution; primarily competes in Italy and adjacent Mediterranean markets rather than Finland.
• Derbigum: Belgian bitumen membrane manufacturer with strong Benelux and Southern European presence. Competes in the same modified bitumen and liquid-applied roofing category as Kerabit Tuotteet, primarily outside Finland.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@raksaruutu
• Facebookfacebook.com/kerabitkatto
• LinkedInlinkedin.com/company/kerabit-katto

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries8 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 Kerabit