Summary

The global market for green roofs has seen significant growth in recent years, with a particularly strong performance in the German market, which is a pioneer in the field. As of 2018, the global market was estimated at $7.2 billion, indicating rapid expansion from $3.6 billion in 2014 and projected to reach $13.5 billion by 2022, reflecting a CAGR of 17.1% over the period 2018-2022. In Germany, the market for green roofs was valued at €254 million in 2014, with the country leading in Europe with 86 million square meters of green roofs and an annual addition of 8 million square meters. The demand for green roofs is driven by both new construction and retrofitting of existing buildings, with a heightened consumer expectation for ecological, energy-efficient, and aesthetic benefits. Municipal actions across German cities have been pivotal, offering financial support and regulations that encourage green roof installations. The sector involves a diverse range of players, including construction companies specializing in waterproofing, companies focused on vegetalization, and nurserymen in the green space sector. Despite the presence of technical, organizational, and financial barriers to entry, the sector remains open to new entrants, and SMEs account for a significant portion of the market. Germany's regulatory landscape is supportive, with the FLL setting quality standards and guidelines, and initiatives such as Stuttgart's mandatory greening for new industrial buildings and Hamburg's ambitious goal of installing 1 million square meters of green roofs by 2020 exemplify the push for urban environmental improvement through green roofing..### Demand Dynamics in the German Green Roof Market In Germany, the market demand for green roofs is split between new constructions and the transformation of existing roofs into vegetated spaces. While the overall construction sector sees an annual addition of between 280,000 and 300,000 new housing units, the penetration rate of green roofs in these new constructions remains modest, despite a growing trend. As of now, only about 10% of new buildings choose to include a vegetated roof. Meanwhile, the renovation market for existing buildings transitions towards green roofs, particularly in large-scale projects such as office buildings, universities, and social housing. This sector is driven by sizeable ventures rather than individual homeowners. Over the years, there has been a shift in market expectations, with demand growing not only in numbers but also in sophistication. Both governmental bodies and consumers are progressively demanding higher environmental, energy, and aesthetic standards. This has prompted industry professionals to tailor their offerings, improving on ecological diversity, insulation qualities, and stormwater management capabilities. For instance, the increase in plant diversity for aesthetic purity has been a particular point of emphasis, which includes the introduction of more floral varieties to enable rooftop beekeeping. Local governmental efforts, particularly in urban settings, have been vital in driving the industry forward. Cities are the front-liners in this movement, often spurred by the multifaceted urban benefits green roofs offer, such as flood prevention, pollution reduction, biodiversity development, and thermal containment. To catalyze this trend, municipalities have offered various incentives, including grants and subsidies for green roof installation costs. This urban push for greener infrastructure complements the rising quality expectations, consolidating a market environment that is both environmentally conscious and aesthetically forward-thinking. As a result, the demand for green roofs has been escalating, with service providers evolving to meet these new market demands and standards..### Key Market Players in the German Green Roofing Industry The German green roofing market is an arena with a diverse mix of companies, each bringing their own specialized skills and products to the table. These market players can be broadly categorized into three groups—specialized construction companies, dedicated green roofing companies, and nurseries and green space experts. Together, they forge a robust and competitive market landscape that caters to the growing demand for green roofing solutions in the country. Let's delve into some of these main players that are shaping Germany's push towards more sustainable and ecologically integrated urban architecture. #### Specialized Construction Companies with Green Roofs Expertise **Kotthof** and **Tectus** are indicative of the large- to medium-sized construction entities that have diversified their expertise to include roof waterproofing and vegetalization services. With a strong foundation in the traditional construction sector, these companies leverage their vast knowledge and resources to provide comprehensive green roofing solutions. #### Dedicated Green Roofing Specialists **Optigrün** stands out as a company solely dedicated to green roofing. As a typically smaller-sized operation, Optigrün distinguishes itself through a clear focus on innovation and specialized services in the green roofing sector. Not only does it serve the local market, but it has also expanded its reach globally with subsidiaries in countries like France. #### Nurseries and Green Space Sector Specialists Bringing a touch of nature's know-how to the industry are companies like **Haas-Garten** and **Der Bio-Gärtner**, which are generally smaller in scale but play a pivotal role in providing the biological components for green roofs. These establishments supply organic and vegetative materials that are essential for the creation of biologically diverse and environmentally beneficial green spaces atop urban structures. #### Role of SMEs in Green Roofing Construction It's also worth noting that according to data from **Destatis** (Federal Statistical Office), small and medium-sized enterprises (SMEs) are responsible for a significant portion of the sector's turnover, demonstrating the importance of these agile and innovative businesses in driving the green roofing market forward in Germany. The collective efforts of these various players contribute significantly to the growth of green roofing in Germany. Their roles, ranging from high-scale construction operations to specialized vegetative services, highlight the dynamic and multifaceted nature of the green roofing industry. By continuing to innovate and expand their offerings, these companies help to advance the adoption of eco-friendly roofing solutions and play a part in the greening of urban landscapes across Germany and beyond.
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Summary and extracts

1 Market overview

1.1 Definition and scope of the study

A vegetated roof, also known as a green roof, green roof, green roof or Horizontal Vegetated Complex Wall (PCVH), is defined as a roof provided with vegetation following the installation of a set of materials and plants composing a microflora with a water drainage system. The installation of a vegetated roof must be compatible with the existing roof structure (slab...) and existing materials (concrete, wood...).

The technique developed in architecture in the 1970s mainly in the Scandinavian countries, Germany, Switzerland and more recently in France and Belgium in the 1990s and 2000s. West Germany pioneered modern green roofs as early as the 1960s.

General structure of a green roof

  1. Vegetation
  2. Substrate
  3. Filter layer
  4. Drainage layer
  5. Sealing membrane
  6. Insulating layer
  7. Vapour barrier (bitumen)
  8. Support element

Source Strasbourg.eu

 

List of charts

  • Taille du marché de la toiture en valeur et prévisions
  • Marché des matériaux de construction écologiques par application
  • Taille du marché de la toiture végétalisée en valeur et prévisions
  • Taille du marché des toitures végétalisées en volume et prévisions

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Companies quoted in this study

This study contains a complete overview of the companies in the market, with the latest figures and news for each company. :

Kotthoff
Tectus
Optigrün International AG
Benkert Dachbegrünung

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