This article by Jonathan Ward, originally published on Arup Thoughts as “A Top-Down Approach to Flood Prevention” discusses a cheap, simple, but effective method of easing the load on drainage after a storm: temporary storage of water on flat roofs, which can not only help to prevent floods, but also provide unexpected benefits as well.
Gravity offers a simple and cheap way to attenuate stormwater flows – by storing water temporarily on a flat roof. All sorts of causes are being blamed for the current flooding in the UK; lack of dredging, poor management of catchment areas, construction on flood plains and paving over front gardens are all being mentioned in the press.
One thing is for sure – we will be paying a lot more attention to the topic given the current experience, and the fact that wetter winters are predicted in our changing climate, with a certainty of more extreme events.
Read on for an explanation of why this counter-intuitive measure actually makes perfect sense
Architects: Despang Architekten
Location: Göttingen, Germany
Architects In Charge: Günther Despang/Martin Despang
Project Architects: Philip Hogrebe/Jörg Steveker
Area: 512 sqm
Photographs: Jochen Stüber, Olaf Baumann
Architects: estudioSIC – Esaú Acosta, Mauro Gil-Fournier, Miguel jaenicke, estudiosic
Location: Leon, Spain
Collaborators: Alfredo Borgui, Nieves Valle, Albert Pérez
Co-authors: Pedro Colón, Raquel Buj
Project Team: Take Away Media, Jorge Pellitero
Project area: 1,450 sqm
Project year: 2010
Photographs: estudioSIC, Esaú Acosta
Architects: b720 Fermín Vázquez Arquitectos
Location: Lloret de Mar, Spain
Competition Team: Fermín Vázquez, Sebastián Khourian, Juan Pablo Porta, Markus Jacoby, Paulo Moreira
Project Team: Fermín Vázquez, Peco Mulet, Sebastián Khourian, Juan Pablo Porta, Andrés Gorini, Nicolás Perfumo, Leonardo Novelo, Giusy Ottonelly, Valeria Merola, Ana Vicente-Arche, Paulo Moreira, Zelia Alvés, Carles Martínez-Almoyna, Laura Marticorena
Interiors: David Pablo, Zelia Alvés, Gaëlle Lauxerrois, Anaïs Blanc, Sandra Palou, Diana Singla
Digital Model: Oriol Roig, Magdalena Ostornol, Iván Arellano
Model: Miquel Lluch, Omar Vejar and Ángel Gaspar
Client: Gran Casino Costa Brava, S.L.
Services: JG Asociados
Rigger: Técnics G3
Lighting Consultor: Artec3
Landscape: Arquitectura Agronomía
Project Area: 31,123.38 sqm
Project Year: 2007–2010
Photographs: Adriá Goula
Enta Yang shared with us the photographs he took of the Hsiangshan Visitor Center by Japan architect Norihiko Dan in Taiwan, winner project from the Sun Moon Lake Tourist Route International competition, featuring a really nice concrete work and a green roof cover to keep under control internal temperatures.
Take a look at the complete photoset after the break.
Architects: Bonnard Woeffray Architectes
Location: Bovernier, Switzerland
Collaborator: Nuno Ferreira
Client: Commune de Bovernier
Project Area: 1,630 sqm
Project Year: 2008-2010
Photographs: Hannes Henz