Bremen: Mandatory green roofs and insect-friendly open spaces

More green flat roofs and open spaces planted as insect-friendly as possible in new building areas - these are the key points of a local law that the building and environment deputation is dealing with today. For new buildings with flat roofs of 100 square metres or more, greening will be mandatory. Row houses and hall roofs, for which greening would cause unreasonably high costs, remain exempt. The greening of new flat roofs serves, among other things, to reduce flooding caused by heavy rain. Likewise, the planting of open spaces will be obligatory in new buildings in order to create more habitat for endangered insects in the densely populated city and to promote the infiltration of water. "With more green roofs, Bremen is preparing itself for the consequences of climate change," says parliamentary group leader Maike Schaefer, "we Greens have been campaigning for this for a long time and are pleased with the decision. Extreme precipitation will hit Bremen more frequently as a result of climate change. We have to contain the danger of flooding caused by prolonged heavy rainfall. Flooded cellars and flooded streets affect people's lives and threaten the logistics location. In order not to leave Bremen out in the rain, we will henceforth prescribe more green flat roofs. Green roofs retain precipitation. A large part of the water evaporates, the rest runs off with a time delay and thus relieves the sewage system. Walk-on flat roofs can also be used as attractive recreational areas with the plants. Last but not least, green roofs filter pollutants from the air, provide a pleasant building climate during heat waves and serve endangered insects. Insect protection must be given more weight. The dramatic loss of bees, butterflies & co. due to agricultural toxins and sealing is threatening an ecological disaster: flowers lack pollinators, birds lack food, pests lack natural enemies. Small insects are ecological giants. We must stop the loss of insects. Green roofs are just as suitable for this as insect-friendly planted areas in new development areas."

DETAIL-Atlas Multi-storey Timber Construction is published

Classic building material in a flexible system

Wood is considered a visually and haptically appealing material, it is sustainable, renewable and usually readily available. However, the fact that timber is also almost entirely suitable for use in multi-storey building construction is new and requires a creative approach to the previously practised construction method. Modern timber construction" is moving away from traditional categorisations such as timber frame construction, timber frame construction etc. and allows a mixture of different construction methods to be used within a project as required. This opens up completely new possibilities for timber construction architecture.
The focus of this publication is therefore on multi-storey timber construction. This atlas provides architects, engineers and timber specialists with the essential specialist knowledge on the new system and construction methodology, from design and prefabrication to on-site joining. It creates mutual understanding among all project participants for the necessary cooperation in the integral planning and construction process and provides the necessary technical expertise to convincingly represent modern timber construction.

- Construction and design methodology in multi-storey timber construction
- New system for timber and timber hybrid construction
- Elements, layer structure, tectonics
- Prefabrication and joining
- Detailed project example section with individual documentation

Authors: Hermann Kaufmann, Stefan Krötsch, Stefan Winter

Published: on 30 June 2017
280 pages with numerous photos and drawings in DETAIL style
Format 23 x 29.7 cm
Hardcover
ISBN 978-3-95553-353-3

Order at buecher.de

Keywords:
DE-News, Wood construction, New books and studies