Aargauer Kunsthaus (Art Gallery)
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The Aargauer Kunsthaus; Photo courtesy Michel R. ChiaffredoProject Name: Aargauer Kunsthaus (Art Gallery)
Year: 2003
Owner: Aargauer
Location: Aarau, Switzerland
Building Type: Commercial
Type: Extensive
System: Single Source Provider
Size: 6566 sq.ft.
Slope: 6%
Access: Accessible, Open to Public
Submitted by: Greenroofs.com

Designers/Manufacturers of Record:
Greenroof: BRYOTEC Technology, MCK ENVIRONNEMENT
Architects for Addition: Herzog & de Meuron and R?my Zaugg
The Aargauer Kunsthaus green moss wall; Photo courtesy Michel R. Chiaffredo
The Aargauer Kunsthaus in Aarau, Switzerland, was completed in the summer of 2003 with pre-grown Ceratodon purpureum roof and wall panels using a technique developed and patented under phyto-ecological engineering called BRYOTEC Technology. The art gallery's greenroof slope varies from 3 - 6% while the slope of the walls is at 45 degrees. The 8,400 sf non-greened flat area of the roof is accessible to the public with spiral stairs as the city park connects to the old city centre. BRYOTEC Technology is an industrial production of a biological inoculant containing micro-organisms and bryophytes with a very high productivity level. It produces biological crusts of mosses which will play a very important role in ground stabilisation (or engineered soil media stabilisation, if on the roof), carbon fixation, and nitrogen fixation. Vascular plant cover is enhanced by the presence of these biological crusts. MCK ENVIRONNEMENT owns an exclusive license of the patent for the purpose of pursuing the development of this technology.
The goal of BRYOTEC Technology is to install a bryophytic cover on roofs and walls with types of vegetation adapted to difficult life conditions with minimum or no maintenance at all. Vegetation with such characteristics are the primary dynamics found in nature, e.g. Therophytes (annual plants) and pre-sods. BRYOTEC technology makes possible the production of pioneer groups essential to the settlement of these roof vegetation types. This procedure allows the repopulation of plant species in accordance with natural processes - those which are perennial and which maintain biodiversity. The ecological chain reconstructed from local species is environmentally coherent. Mats on which mosses are cultivated and mixed with seeds of xerophylous plants (those that are adapted for growing or living in dry surroundings) can be started and subsequently installed on roofs after proper development.

Additional thumbnail photos:

Read the entire February 2004 Greenroofs.com Guest Feature by Michel R. Chiaffredo entitled "When Mosses Recreate the Landscape on the Roof" here; this profile was created from this article. Visit the Aargauer Kunsthaus (Art Gallery) here, and learn about their exhibits as well as the architecture.
 
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