by Professor Werner Lang, the innovative window installation system of the Architects Association supports the sustainable development of the construction industry Climate change, environmental damage, resource competition, population change and urbanization, and the resulting demand for our society is the core task today.
Architecture plays a vital role in it.
For example, about 26% of Europe’s final energy is used to operate residential buildings.
In addition, about 60% of the global power demand and about one-third of the carbon dioxide emissions can be attributed to the construction and operation of buildings.
In addition, the construction industry contributes 25 to 30 per cent of waste generation throughout Europe.
At present, in Germany, about 450 million tons (about 5.6 tons/person) of mineral raw materials (such as gravel and sand) and more than 15.5 million tons (194 kg/person) of metals, such as steel, aluminum and copper, are used for the maintenance and construction of buildings every year.
In order to achieve the established climate protection goals, by 2050, the greenhouse gas emissions of industrialized countries must be reduced by about 80 to 95 per cent from 1990 levels.
According to the EU Building Directive that will come into force in 2021, all new buildings in the EU must be built according to the minimum energy consumption standard from 2021.
The carbon dioxide emissions from these buildings are almost zero.
This means that the operating energy consumption of heating, cooling, fresh air and sunlight supply as well as the energy consumption of material procurement, product manufacturing, transportation, installation, use, maintenance, removal and recycling of building components must be minimized.
Here, high-performance and innovative window structures play a central role in providing a comfortable indoor climate and minimizing energy consumption in the building sector.
This must be considered in the urgent and comprehensive energy transformation of the building stock as well as in the new buildings.
In this context, the “two-stage installation of doors and windows using prefabricated components” represents a valuable new development in the field of windows and installation technology, because the use of prefabricated frames can dismantle the construction process, and windows can be protected from damage caused by the construction site.
This means that possible structural damage or defects can be expected to be reduced as part of the building inspection.
In addition, the windows can be replaced in a simple and cost-effective way.
In view of the different life expectancy between windows and exterior wall structures, this is a significant advantage.
For the urgent need to minimize the operational energy consumption and the “gray energy” used in building components, “using pre installed components to install doors and windows in two stages” can make valuable contributions.
The improvement of quality during installation is helpful to avoid damage, prolong the service life of window structure and the connection with exterior wall structure.
In addition, windows installed in this way can be replaced at the end of their service life without time-consuming and costly work.
To a large extent, non-destructive demolition supports both the installation of new windows (which may be functionally optimized) and the recycling of building materials from demolished windows.
Among other advantages, this represents outstanding added value compared to previous window installation types.
IftRosenheim is an internationally recognized European testing, regulatory and certification body (NB0757) according to DINENISO/IEC17025.
Its business focus is on testing and evaluating all properties of doors, windows, curtain walls, glass and building materials.
Its goal is to continuously improve product quality, design and technology, and carry out standardization and research.
The certification of iftRosenheim ensures that products are recognized in Europe.
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