by JörnP.
Professor Las iftrosenheim head of modern installation methods improve quality and sustainability pre installed frames prevent structural damage and can quickly and easily install and replace Windows.
Modern windows are high-quality and complex building components that can effectively and economically use solar radiation to generate energy and minimize heat loss.
As a result, windows and glass make a significant contribution to saving heating energy – and all of which do not require complex system technology.
A very important part of ensuring the function of windows is to install windows on the outer wall.
Even small mistakes in the planning and implementation of window installation will lead to obvious structural damage, which will seriously damage the functions of heat insulation and sound insulation, safety, intrusion prevention or ventilation of the window.
In order to eliminate assembly errors, complex rework is usually required.
For the traditional construction process, in the so-called “wet operation construction environment”, windows are installed shortly after the completion of the building.
The background is that the building should be quickly closed so that the interior can be decorated in a weatherproof state and protected from unauthorized entry by others.
In the subsequent construction period lasting for weeks or months, the damage caused by other construction industries is the norm rather than the exception.
Such damage often leads to complaints, expensive maintenance costs and delays in the construction process.
The originator of the damage is rarely determined.
Only by “Rethinking” the construction process and window installation and better organization can this high risk be avoided.
In addition, many industries that must be coordinated are involved in the planning and implementation of window installation.
This requires a high level of qualification and experience of the builder and the careful coordination of the architect or the person in charge of the site.
However, practice shows that the ability and quality of builders have declined, and the situation is expected to deteriorate further due to the lack of skilled workers.
In recent decades, the innovation cycle of window technology is significantly shorter than the possible life expectancy of windows of about 30 years.
This means that replacing windows in 15 to 20 years has perfect technical, economic and ecological significance, just like heating equipment.
Therefore, about 235 million old window units in Germany are in urgent need of replacement.
This will reduce carbon dioxide emissions by about 12.3 million tons per year.
However, the replacement work has stalled, because with the construction and installation technology so far, windows can only be replaced in the case of massive damage to the building structure, which will lead to a lot of dust, time and cost.
When replacing windows, the installation cost is usually higher than that of new windows.
All these problems can be avoided by two-stage assembly, in which pre installed components are set first, which makes the building weather resistant with the help of temporary fillers (panels, foil, etc.).
Strong and insensitive materials can be used here.
After all finishing work is completed, windows with high-quality, furniture like surfaces will be installed to obtain the best protection from damage.
A frequently used argument against the use of pre installed architectures is the additional costs that appear at first glance.
However, the investigation of iftrosenheim and Rosenheim University of technology shows that on the whole, even including the usual complaint cost, the cost of two-stage installation is even lower than that of traditional installation.
Therefore, two-stage installation is common in other parts of Europe, such as Austria or Italy.
For this reason, iftrosenheim, together with the window + curtain wall Association and quality oriented manufacturers and installation companies, recommended the use of two-stage installation.
To this end, iftrosenheim also actively supported the preparation of IFT technical information mo-06 / 1 “two-stage installation of doors and windows using pre installed frames”.
Dr.
wernerlang, Professor, the innovative window installation system of the Institute of architects 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 are the core tasks of today.
Architecture plays a vital role in it.
For example, about 26% of the final energy in Europe is used to operate residential buildings.
In addition, about 60% of the global electricity 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 accounts for 25 to 30 per cent of waste generation in Europe as a whole.
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 building maintenance and new construction every year.
In order to achieve the established climate protection goals, greenhouse gas emissions in industrialized countries must be reduced by about 80 to 95 per cent from 1990 levels by 2050.
According to the EU building directive that came into force in 2021, all new buildings in the EU must be built according to the standard of minimum energy consumption from 2021.
The carbon dioxide emissions from these buildings are almost zero.
This means that the operating energy consumption of heating, refrigeration, fresh air and sunlight supply, as well as the energy consumption of material procurement, product manufacturing, transportation, installation, use, maintenance, demolition 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 construction sector.
This must be taken into account in the urgent and comprehensive energy transformation of the building stock and in new buildings.
In this context, “two-stage installation of doors and windows with prefabricated components” represents a valuable new development in the field of windows and installation technology, because the use of prefabricated frame can disassemble the construction process and the windows can be protected from damage caused by the construction site.
This means that as part of the building inspection, it can be expected to reduce possible structural damage or defects..
