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February 21, 2020

bautec News – 21 February 2020

From 19 to 21 February we will keep you informed each day about innovations, highlights and news about the industry at bautec 2020.

Current press material about bautec 2020 such as the Innovation Report, press releases, the latest press photos and videos is available online, free of charge, at www.bautec.com/Presse for editorial and research purposes.

 

bautec Congress: The future of housing

What will the cities of the future look like? With a keynote speech on this subject the trend researcher and consultant Oona Horx-Strathern will open the bautec Congress” Urban Housing | Position and Perspectives”, which is aimed at planners and architects. Contrary to an aging “silver society“, Horx-Strathern is seeing a biographical rejuvenation, accompanied by a proliferation of phases of life, and consequently of housing too. The increasing number of single-person households in cities is accompanied by the risk of isolation, making it important for planners to include communal and meeting spaces. Functions such as guest rooms will be outsourced in co-living projects and used communally. As a result apartments will become smaller and will lose their overall importance as status symbols, Horx-Strathern predicts. Modular construction with prefabricated elements will become more prevalent, to speed up construction and enable it to become more affordable and more environmentally friendly. As resources become more limited, the recycling of building materials will also be of growing importance, in pursuit of a consumption-oriented “neo-ecology” which, instead of self-denial, will embrace an economy based on recycling and consumption.

 

up#Berlin: Innovations – the building of the future

On Thursday, at a panel discussion at the forum up#Berlin in Hall 4.2, planners and architects exchanged views on new solutions for urban housing. In order to still be able to create high-quality buildings in times of rising construction and property costs, Christian Roth of Zander Roth Architekten (Berlin) presented projects that maximise the amount of available space. Buildings with apartments above supermarkets, of the kind being promoted by Lidl, or housing next to schools, could utilise space more efficiently in urban areas. Jan Schellhoff of UN Studio presented multi-purpose buildings such as the Green Spine high-rise in Melbourne, whose aim is to transport the quality of life of surrounding nature into the city and thus put a stop to overdevelopment. MIRIS from Norway presented its Svart Resort concept, a joint venture with Snøhetta, which is a vision of the world’s first energy-positive hotel. It also highlights solutions for saving energy in existing buildings and computer centres as well as ways of making buildings of the future more climate-friendly. 

 

Wind power and photovoltaics are indispensable for supplying carbon-neutral energy

On the Thursday of bautec at the Building Practice Centre Sanitation-Heating-Air Con Prof. Dr. Jan Mugele provided information on the current status of the energy transition where technical building installations are concerned. Mugele lectures on Technical Building Installations at Berliner Hochschule für Wirtschaft und Recht (HWR). In his view a high degree of renewable energy consumption is necessary in buildings in order to make it at all possible to meet climate targets. However, sales of conversion systems for utilising renewable energy in buildings were currently too slow, he said. On the one hand making use of local, decentralised energy systems could significantly accelerate the installation of photovoltaics on buildings. On the other, it was necessary to build wind and solar farms in significantly higher numbers at national level to ensure carbon-neutral energy supplies. If buildings were properly equipped they could play an important role in coupling the energy, heat distribution and transport sectors, he said.

 

Sanitary sector presents innovations with the emphasis on design

With such items as showers, WCs and wash basins, Hall 1.2 at bautec in Berlin provides planners, tradesmen and architects with an overview of the latest in the sanitary sector. Winners of the German Design Award 2020, the RONDAtop and VARIUScare wash basins from Franke Aquarotter offer ideal solutions for modern bathrooms, with the emphasis on design. Hansgrohe is presenting its Rainfinity range of showers. Their PowderRain spray technology covers the user’s body in fine droplets of water. Rainfinity was the winner of the Red Dot Award 2019 “Best of Best” and the iF Gold Award. For its free-standing BettePond Silhouette, Bette has received the “Best of Best” Iconic Award 2020. The BetteCraft washstand bowl was also a winner in this category.

 

Slim lines, high heating output

One of the main problems when renovating older buildings is the height of the floor, including underfloor installations. In most cases this rules out underfloor heating. However, with the Effidur WP flooring system it is even possible to install underfloor heating. Depending on the particular system used, the strong honeycomb structure allows a very shallow installation height of 15 or 25 mm. The low construction height and limited amount of material used ensure that the optional underfloor heating achieves its full effectiveness in less than ten minutes. The honeycomb panels are laid as floating floors.

Hall 1.2, Stand 1108, contact: Gerd Klimke, T: +49 (0)160 4790577,
M:
gerd.klimke@effidur.de, www.effidur.de

 

Green infrastructure is now a well-established essential

On the second day at bautec the “GRÜNBAU:TALKS | Green, resilient, sustainable” focused on the impact of climate change in urban areas. And such effects are already more noticeable than had previously been thought. At the start of this event the presenter Philipp Sattler from the DIE GRÜNE STADT foundation made the following observation: “Green infrastructure is now no longer just nice-to-have, but is a must-have”. The question is now how cities should be built in the future in order to cope with increasingly heavy rainfall as well as hotter summers.

The response from Marco Schmidt of the Federal Institute for Research into Building, Urban Affairs and Spatial Development (BBSR) was to advocate the greening of buildings and energy-efficient cooling of buildings. He presented examples of how cities can prepare for climate change. For him the key is interdisciplinary thinking and working. By means of evaporation chill, green roofs significantly reduce surface temperatures. Whereas bitumen strips on flat roofs can heat up to 60°C in summer, on a roof that has been planted with vegetation this is reduced to just 20°C. In this way green roofs not only have a cooling effect externally but also in the building below. This explains the current trend for the greening of roofs and installation of photovoltaics.

The imbalance between evaporation and the run-off of rainwater by sealing off the underlying area has an adverse effect on what is known as the small water cycle. In Berlin and Brandenburg 80 per cent of rainwater evaporates, and only 20 per cent is allowed to reach rivers, and as a consequence their water levels are reducing all the time in summer. This is a global phenomenon and is leading to the drying out of the ground all over the world. And with greater densification in urban agglomerations this sealing of the ground is on the increase. A combination of green roofs and cisterns to catch the rainwater is a way of remedying this situation. Using the Institute for Physics in Berlin Adlershof as an example, Schmidt presented a building façade that has been greened by the use of some 450 plants in tubs. This is not only better in terms of the investment costs but is also more effective than a conventional sun-screening system. Green also offers advantages with regard to operating costs: after three years the operating costs of the greened facade amounted to 1,300 euros p.a., compared with 16,500 euros for the conventional method. “Most architects still have a phobia about using plants, but this will become inevitable in the future”, says Schmidt.

 

The separator that does it all

Standard separators for dealing with dirt and sludge require frequent maintenance. To ease the burden on facility management, Caleffi has developed its fully automated DIRTMAG CLEAN. After it has filtered, this unit empties and cleans itself, using an electronic control device which can be operated locally or remotely with the MODBUS-RTU system.

Hall 1.2, Stand 1406, contact: Andreas Weckener, T: +49 (0)160 7157404, M: andreas.weckener@caleffi.de, www.caleffi.de

 

Plug and play in multi-occupancy homes

A time-saver for tradesmen – this is the thinking behind the Unofloor pre-assembled distribution station from Danfoss. The heating distributors are equipped with pre-assembled adjustment components and can simply be installed at the construction site. This results in a reduction of at least 1.5 hours in the installation process, compared with standard methods. These units have been designed for four to eight, or ten to twelve heating circuits, and are available in three versions.

Hall 1.2, Stand 1102, contact: Thomas Janek, T: +49 (0)171 5849916,
M:
thomas.janek@danfoss.com, www.danfoss.com

 

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About bautec

The International Trade Fair for Building and Construction Technology is organised by Messe Berlin and takes place every two years. Among bautec’s unique selling points is its comprehensive approach towards buildings, from the basement to the roof, as well as the infrastructure. The programme of bautec is rounded off by GRÜNBAU BERLIN and up#Berlin.