The Division of Green Roofs under the Czech Landscape Gardening Association
invite you to an international conference
GREEN ROOFS - THE VISION OF THE FUTURE
SEPTEMBER 10th, 2020, PRAGUE
KONGRESOVÉ CENTRUM VAVRUŠKA, PALÁC CHARITAS, KARLOVO NÁMĚSTÍ 5, 120 00 PRAHA 2
Vavruska Congress Centre, Charles square 5, Prague, Czech Republic
The aim of the conference is to acquire current foreign experience with the construction of green roofs and to provide them to the professional public in the Czech Republic. It is necessary to follow trends in countries where green roofs have been built for decades. New challenges are emerging - green roofs to increase biodiversity, green roofs as extended dwellings, green roofs as sports grounds. It is also necessary to focus on the combination of green roofs and photovoltaic panels. The circular economy and the materials used also play an important role.
The construction of green roofs in the Czech Republic is developing rapidly, as evidenced by more than twenty works entered in this year's Green Roof of the Year competition. The participants of the conference will get acquainted with the economic reasons why to build green roofs and with interesting realizations in the Czech Republic. At the end of the conference, the results of the Green Roof 2020 competition will be announced.
The target group of conference are architects and designers, politicians and city officials, people from municipalities, representatives of companies engaging in green roof construction.
Registration fee: 80 €
REGISTRATION deadline 20. 8. 2020
PROGRAM
9.30 – 10.00 REGISTRATION OF PARTICIPANTS
SESSION I. 10.00–12.00
10.00–10.20 OPENING SPEECH – GREEN ROOFS IN THE CZECH REPUBLIC
Pavel Dostal, chairman of the Division of Green Roofs under the Czech Landscape Gardening Association, vice-president of the European Federation of Green Roof Associations – EFB
10.15–10.30 WELCOME BY A REPRESENTATIVE OF THE MINISTRY OF THE ENVIRONMENT
10.30 – 11.00 GREEN ROOFS - BIODIVERSITY AND PHOTOVOLTAIC
As the name suggests Biodiverse roofs are created primarily for biodiversity purposes and can aim to recreate the habitat that was lost when the building was erected, or even enhance it. A ‘Green’ biodiverse roof would generally be broadcast with an appropriate seed mix, and/or planted with species of plug plants to encourage specific plant types. Substrate depths may vary across the roof deck to promote a diversity of both shallow and deep-rooted plants and ones which are more and less drought tolerant. Undulating substrate depths also create differing habitats for a greater range of invertebrate species. Photovoltaic (PV) panels work more efficiently at a set operating temperature. Once there is a deviation either above or below this level, the electricity generation becomes less efficient. As a green roof can maintain a more constant temperature regime with less daily fluctuations, the PV panels are able to work more efficiently throughout the day.
Lecturer: Dusty Gedge, (Great Britain) president of European Federation of Green Roof Associations – EFB, green roof and urban green infrastructure professional, international public speaker on green roofs, ornithological/wildlife consultant, and nature photographer (dustygedge.co.uk).
11.00 – 11.30 BLUE AND BLUE - GREEN ROOFS
This presentation will introduce blue and blue-green roofs in their European context. The impact of a changing climate is increasingly evident in Europe’s cities, as flooding, extended periods of drought and excessive heat combine to create a public health emergency. Policymakers have begun to wake up to the scale of the challenge facing our urban environment and the necessity to create resilient cities that adapt to the changing climate. Blue-green infrastructure challenges the traditional ‘collect – transport – release’ method of urban water management which fail to recognise the value of water and push problems downstream. Innovative sustainable drainage systems have been developed at rooftop level which mimic the response of nature by capturing rainwater where it falls and slowly releasing it into existing infrastructure. These roofs are called blue and blue-green roofs. Blue and blue-green roofs are becoming well established in Northern Europe as the commercial and environmental benefits of rooftop water management in dense urban sites is well understood.
Lecturer: Michael Bates, Polypipe, (Great Britain), Business Development Manager at Polypipe International, where he leads their approach to sustainable drainage systems and green urbanisation in the European and international marketplace. He is a specialist in the use of roofs and podiums for stormwater management, delivering seminars on innovative water management techniques to municipalities, architects, and consulting engineers to create greener, more resilient cities (www.polypipe.com).
11.30 – 12.00 PANEL DISCUSSION ON THE FIRST SESSION
12.00 – 13.00 LUNCH
SESSION II. 13.00–15.00
13.00–13.30 GREEN ROOFS IN MEDITERRANEAN CLIMATIC CONDITIOS – ITALIAN EXPERIENCE
Climate change is requiring to green infrastructure high resilience. Focussing on the main factors like heavier rainfalls, longer drought periods, higher request of performances in terms of ecosystemic services, we report which is the Italian experience in Mediterranean climatic conditions and how they condition regional and national norms and regulations.
Lecturer: Maurizio Crasso (Italy), Geologist and director of the construction division of Harpo spa in Trieste. In 2003 he created a new division in the company dedicated to hanging gardens, today Harpo Verdepensile, recognized as the Italian market leader for professional hanging gardens. He is a member of the Aivep National Board of Directors - Italian Green Roofing Association - for which he is an Italian delegate to the EFB European Green Roofing Federation. Co-author of several publications and research on green roofs, he was responsible for the group of research consisting of Harpo, the University of Genoa Dicat department and the University of Trieste, faculty of life sciences for the project "Definition of behaviour patterns of green roofs for the building envelope and the environment" co-funded by Harpo and from the European Community (www.harpogroup.it/verdepensile/home).
13.30 –14.00 NATURE BASED SOLUTION FOR GREEN ROOFS
Green roofs are increasingly popular in different regions of the world, due to the enormous advantages they bring to cities. At a time of profound climatic changes, when several phenomena call into question the resilience of cities, cities are growing dramatically, aggravating the consequences of so many changes. Green infrastructures and nature based solutions, appear as an enormous help, in mitigating the heat island effect, in controlling the flow of water from heavy rains, in promoting biodiversity, in increasing the thermal efficiency of buildings, in pollution reduction among many other benefits. But are they nature-based solution, as green roofs, named just because they have plants as one of the constituents? What about synthetic materials, like plastics, which are so often used in their construction? Are these solutions based entirely on nature? Is this possible? In Portugal, a research group, for three years, worked on this subject, seeking to find materials based on nature that could replace synthetic materials for green roofs. In the end, GUL appeared, an innovative system, totally natural, negative carbon, 100% produced with cork, with amazing performance. The future can be, really, greener!
Lecturer: Paulo Palha, (Portugal) vice-president EFB, the General Director of the company "Neoturf - Espaços Verdes Lda" (www.neoturf.pt) and founder of company Landlab Lda (www.landlab.pt). With more than 300 landscape projects and 100 green roof projects, he develops research and work on green roofs since he was a graduate student, and he is currently developing projects and installations in Portugal and abroad. Due to his expertise in green roofs, he is often sought to conduct training courses on green roofing in different parts of the country and abroad. He was the founder and actual board President of the Portuguese Green Roofs National Association Green Roofs. In this context, we highlight the coordination of the working group for the first technical guide for the design, construction and maintenance of green roofs, and more recently the authorship and coordination of the Porto’s fifth façade project (http://greenroofs.pt/pt/pqap). He is very active on the issues of the EFB - European Federation of Green Roof Associations, and WGIN - World Green Infrastructure Network
14.00 –14.30 LIVING WALLS
Recently ever new building integrated greening systems are developed. They are traded as promising option to adapt cities to climate change impacts, improve attractiveness and quality of life. Being an integral part of a building’s facade, they do not need contact to soil and may be applied in any size at any height of a building. But do they really derive significant effects on a building and its surrounding microclimate?
Lecturer: Bernhard Scharf (Austria) Researcher and Lecturer | University of Natural Resources and Life Sciences, Vienna – Department of Structural Engineering and Natural Hazards – Institute of Soil Bioengineering and Landscape Construction Technical Director | Green4cities GmbH. Green4Cities offers a variety of consulting and coaching services on Green Infrastructure. The team is involved with a range of urban development projects, optimizing the integration of Green Infrastructure in architecture for microclimate, particulate matter and resource efficiency and developing detailed vegetation and technical solutions for specific problems.
14.30 –15.00 BENEFITS OF GREEN ROOFS FROM THE PERSPECTIVE OF THE ECONOMY:
Green roofs in the city as an effective adaptation measure to climate change not only for society but also for Investors.Based on a certified methodology for evaluating green and blue infrastructure in cities, the benefits of green roofs can be expressed in monetary units. The overall benefit of a roof can be one of the arguments for its implementation and support of construction. From the point of view of economics, five key factors will be presented. The difference in evaluation will be shown on selected examples of extensive roofs, e.g. according to the type of building, the investor, the location of the green roof on the building or the use of rainwater.
Lecturer: Jan Macháč (Czech Republic) he works as a researcher and manager of several research projects. In 2018 he graduated with a doctoral degree in Economics focusing on Environmental Economics and Policy. He mainly deals with green and blue infrastructure, adaptation to climate change, water management, ecosystem services and regulatory impact assessment. Partly he is also involved in the team of Energy and Air pollution. He applies several economic methods and tools such as cost-benefit analysis, cost-effectiveness analysis, valuation methods (e.g., choice experiments, meta-analysis, replacement method), optimization methods and (dis)proportional analysis. He is author of several certified methods, author, or co-author of 3 papers in journals with impact factor, 6 papers in WOS and SCOPUS databases and other 20 papers in journals, conference proceedings and chapters in monographs. Author of 45 conference contributions (in the Czech Republic and abroad).
15.00–15.30 COFFEE BREAK
SESSION III. 15.30–17.00
15.30 –16.00 GREEN ROOF MAINTENANCE – THE BASIS AND CONDITION FOR SUCCESS
EXTENSIVE DOES NOT MEAN WITHOUT CARE AND MAINTENANCE - INTENSITY OF MAINTAINANCE AND WHAT AFFECTS IT
Maintenance, conducted by qualified personnel will ensure the initial establishment and continued health of the green roof system. When designing a green roof, it is important that the green roof system is specified accounting for any budgetary constraints. The costs of roof maintenance should therefore form part of the life cycle cost analysis for the building, allowing the most appropriate green roof specification to be realised.
Lecturer: Samuel Burian (Czech Republic), landscape architect, co-author of the document "Standards for the Planning, constriction and maintenance of green roofs". Member of Jury Green Roof of the Year Competition since 2014.
16.00 –17.00 INSPIRING EXAMPLES FROM COMPETITION THE GREEN ROOF OF THE YEAR 2020
17.00– 17.30 AWARDING CEREMONY GREEN ROOFOF THE YEAR 2020 COMPETITION
The conference is part of the project Green roof - a vision for the future supported by the Ministry of the Environment.
The conference is a part of the eighth annual international Landscape Festival, which focuses on urban public space and urbanized landscape in the Czech Republic.
