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Technical articles and Interviews

 

ift Rosenheim employs more than 150 scientists, engineers and practitioners of the most different special fields – each a leading expert in his area of expertise. The ift experts are available for interviews and expert’s tips in coordination with the Department PR. The publications represent the extensive specialized knowledge of ift Rosenheim that is coordinated with the relevant professional circles and describes the the state of the art. Older technical articles from 2002 – 2005 can befound in Technical article archive.

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EN 16034 - CE statt Zulassung

Die Koexistenzphase beträgt drei Jahre. In dieser Zeit können noch die in den Europäischen Mitgliedsstaaten existierenden nationalen Zulassungs- und Verwendbarkeitssysteme angewendet werden. Ab dem 1. September 2019 besteht dann CE-Kennzeichnungspflicht. Danach müssen Türen, Tore und Fenster mit Feuer- und/oder Rauchschutzeigenschaften gemäß Anwendungsbereich der EN 16034 mit dem CE-Zeichen versehen werden und eine Leistungserklärung muss erstellt werden. Der vollständige Inhalt mit Text und Bildern steht als PDF-Datei per Download zur Verfügung.

Solar shading – quickly designed

The current version of the Energy Conservation Directive (EnEV 2013) [1] (Sections 3 and 4) stipulates minimum requirements for thermal insulation of residential and non-residential buildings in summer. The requirements in these sections apply to buildings to be constructed, i.e. new buildings. Evidence of thermal insulation in summer is not required for the refurbishment of buildings. An exception is contained in Section 9 (4 and 5) where the usable area is extended by more than 50 m² (4) and where a new energy appliance is installed (5).   Verification of thermal insulation in sum...

The new graded model – step by step towards product quality

For many years, the ift Rosenheim has been offering a wide range of product certifications for materials, components and construction parts associated with windows, facades, doors, hardware and glass products. The certifications are based on certification schemes designed for the respective products. The ift certification schemes are generally used to ensure the consistent quality of construction products and accessories.   An important shared characteristic of these schemes is that the product and manufacturer requirements are absolute, and all have to be complied with in order to obtai...

The effect of building components on the environment and health

The number of those suffering from allergies, that is human beings whose immune system reacts to certain environmental influences, has been on the rise in Germany since years. What is striking here is, above all, the sudden allergic reactions of human beings, who were not aware of any adverse effects so far. The increasing severity of the immune reactions and the diversity of the environmental influences coming into play are also abnormal. The causes for this development are being attributed, in most cases, to several different social, technical but even ecological changes in our way of life. A...

Windows and doors in special buildings

What makes a building special? The building regulations classify special buildings as rooms and facilities of special type or use. This is given concrete shape in the sample building code and the respective national building regulations by a list of different types of buildings. Typical examples are: skyscrapers, meeting places, hospitals and even schools, universities and similar facilities. For some of these approximately 20 special constructions listed, there are special codes existing such as, for example: the meeting place ordinance, regulations for residential facilities and the sample sc...

Insulation glass 0.4

The requirements for buildings relating to energy conservation and climate protection have led to a significant improvement in the thermal insulation of buildings. Good energy efficiency and comfort levels require primarily high-quality windows with insulating glazing in addition to efficient services installations and facade insulation. In the past, improve-ments in the thermal transmittance UW of windows were mainly the result of the develop-ment of insulating glazing. Today, in view of EnEV 2014 that stipulates further upgrades with effect from 01.01.2016 and public grants available for ener...

What to do when test specimens fail during testing?

Why are tests required?   The development cycles of windows and facades are becoming increasingly shorter. As a result, the risk of weak spots or faults creeping in during construction is becoming increasingly greater. This is also being reflected clearly in practical testing at ift: Similar faults and weak spots are being identified repeatedly. Hence, the tests conducted on windows and facades should not only serve as certification that the requirements of the construction are met but, rather, they should be used along with the development process to unearth potential shortcomings or de...

Fenster planen - mit Verstand und Augenmaß

Es heißt, dass Fenster dem Gebäude Gesicht und Charakter geben. Das gilt nicht nur für das äußere Erscheinungsbild, sondern in gleicher Weise für das Innenleben und die Funktion eines Hauses – genannt seien hier wichtige Parameter wie der Ausblick, Tageslichtversorgung und Lüftung. Fenster greifen aber auch wechselweise in die Raumnutzung ein, weil man vor ein Fenster keine Möbel stellt oder dieses nicht öffnen kann, weil Ecken, Kanten, Stützen oder Vorsprünge im Weg sind. Deshalb müssen Fenster auch von innen geplant werden. Der vollständige Inhalt mit Text und Bildern steht als PDF-Datei per...

Druckentspannung von Isolierglas ueber Kapillare

Zunehmende energetische Ansprüche an Fenster sowie der Wunsch, Bauteile wie z. B. Sonnenschutzsysteme in den Scheibenzwischenraum zu integrieren, erfordern Mehr-scheiben-Isoliergläser (MIG) mit größeren Scheibenzwischenräumen. Die Physik setzt je-doch enge Grenzen, denn ein größerer Scheibenzwischenraum führt zu höheren Klimabelastungen der Scheiben und des Randverbundes. In einem gerade abgeschlossenen Forschungsprojekt demonstriert das ift Rosenheim, dass Kapillare geeignet sind, eine Druck-entspannung umzusetzen, allerdings sind Ventile Kandidaten mit großem Potenzial.   1 Motivation ...

Modulares Bauen

Frage 1: Was ist modulares Bauen überhaupt?   Modulares Bauen ist abgeleitet vom Baukastenprinzip der Automobilbauer. Das Zusammenfügen vormodulierter, vorgefertigter Komponenten mit definierten Schnittstellen und einem möglichst hohen Vorfertigungsgrad. Hiermit lassen sich größere Individualität und Vielfalt kostenoptimiert realisieren. Wir haben dieses Thema erstmalig auf den Rosenheimer Fenstertagen vor zwei Jahren, also 2013, aufgeworfen – vorrangig im Zusammenhang mit der immer komplexer werdenden Fenstertechnik. Diese wird nach dem Wirkprinzip Fenster und Fassade als Energiemanage...

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