Energy efficiency in building renovation

Three-quarters of just under 39 million residential dwellings in Germany are more than 30 years old. In 2010, roughly 24 million units had energy consumption for heating relative to the living space that was many times higher than the permissible level for new buildings according to the current Energy Conservation Act. Targeted reductions in CO2  emissions for Germany are unattainable without energy-saving measures on existing buildings.

The energy efficient renovation of buildings is understood as being structural and technical systems measures for existing buildings, aimed primarily at bringing about heating energy savings. These measures involve thermal-insulation to the building envelope (windows, external walls, roofs, floor slabs) in addition to those undertaken within the building on cellar ceilings and in unheated attic spaces. Together with a more energy-efficient equipment, the energy consumption in renovated buildings can be cut to a fraction of that in an unrenovated building. Furthermore, the active and passive integration of renewable energies is an important element in the execution of renovation concepts.

Müller-BBM provides you with support for your property with the following key services:

  • Building physics and technical surveying of the building
  • Carrying out building physical measurements (e.g. thermography, Blower-Door, temperature and humidity measurements)
  • Establishing a concept for improving energy efficiency, involving economic, statutory, building design and plant engineering aspects
  • Advice on use of funding and grants including those related to permit applications and certification where applicable
  • Calculation of the required insulation thickness and grades, taking into account constructive specificities of the existing construction as well as any existing provisions of historic preservation
  • Detailed specialist planning and consultation on structural implementation
  • Seconding of construction supervision

For the clarification of issues related to the structural design of components, component connections and fine details, we use modern planning tools and procedures, such as hygrothermal simulations for example. We are able to call on our specialist knowledge and laboratory services for hazardous material removal for the removal of old insulating layers and building materials during renovation.

The renovation of buildings for activities that have very high demands on indoor climate (e.g. museums, archives or galleries) is  often an an occasion for simultaneously installing modern ventilation and air-conditioning systems to improve the indoor climate. In comparison to the "historic climate concept" of the building, lasting changes that can result from the modifications can, in extreme cases, potentially cause damage to the building. The design of renovation from a building physics aspect by Müller-BBM, always takes into consideration the interaction between the building and room climate or the room climate technology. We examine what room climate can be "expected" for the building, and which measures are necessary for harmonising the building with the room climate.

Take advantage of the extensive and specialised project experience of our employees.

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