Extension construction reached only 13 heat energy value kWh / (m 2 a) passive, energy saving, Muller-BBM, cost-cutting at the end of August the extension building of the Hauptstaatsarchiv Dresden was inaugurated. The Dresden State Archives is located in the Government District, the inner Neustadt. The listed building complex was built in 1912-1915 and received well for capacity reasons a new extension building, designed by ASP Schweger associated. Client is the free State of Saxony, Saxon State Ministry of finance, represented by the State Enterprise Sachsisches Immobilien and Baumanagement (SIB). The compact, cube-shaped extension building was built in reinforced concrete construction and one has ventilated brick facade.
It houses 8 magazine days (3 of them underground) with corresponding shelf equipment and a floor with workshops. Main task of the building is to protect the archive from damage by external factors such as outdoor climate and air pollution. The planning of building physics including the climatology branch Dresden took place by Muller-BBM. Focused attention, to create an optimal climate and a high climate stability for the archives to be stored. Was investigated the behaviour of the building by Muller-BBM with building simulations and optimized so the room climate. Focused on a passive optimization of the structural conditions on site, so that the usage can be kept to a minimum of air conditioning equipment. To reach a long term cheap operating costs, without the archive building by Muller-BBM was planned according to the specifications of the passive house standard and in the meantime also by the passive house Institute as “Qualitatsgepruftes passive house” certified.
Already by the compact design and the deep integration into the ground best conditions some wall for heating and cooling for a low. In addition, the entire building envelope has a high structural heat protection. The thermal insulation is arranged on all sides externally and is largely free of thermal bridges carried out. Non-insulated external components (E.g. light shafts) are consistently thermally decoupled. Due to the massive construction, the building envelope is also a very high air tightness (n50 = 0.10 h-1) on. Already during the construction phase, the accompanying measurements of airtightness were performed. The heat demand of the building is covered by a preheating of the air and the required minimum air exchange in the room. The ventilation system is running with a heat and moisture recovery. The calculated energy characteristic value heat is energy reference area below the maximum to be followed 15 kWh/(ma) with 13 kWh/(ma), so that the request of the passive house Institute is held securely. The maximum allowable primary energy demand by 120 kWh/(ma) energy reference area is clearly satisfied with 26 kWh/(ma). To ensure the planned, high energetic standard of the building, also a corresponding supervision carried out apart from planning to quality assurance Muller-BBM. Photo: extension building Hauptstaatsarchiv Dresden photo/copyright: Jorg of schoner, Dresden (courtesy of the Saxon State Ministry of finance by August 29, 2008)