Due to practiced building practice in the past decades the preservation of a sufficient room air quality usually proved as unproblematic. The necessary air-change was already regularly ensured by the so called free ventilation of dwellings, i.e. over existing building leakages. For this neither purposeful constructional measures...

Sich ändernde Bedingungen der allgemeinen tschechischen Baupraxis führen zu einer ernsthafteren Berücksichtigung der auf die Luftdichtheit bezogenen Probleme - aus verschiedenen Gründen: - Einführung von empfohlenen n50-Werte in den tschechischen technischen Standard hinsichtlich des Wärmeschutzes der...

The interrelation between requirement and implementation and/or realization of the ventilation technique is represented in fig. 9 exemplarily for a building, similar to the example from DIN 4108 - 6 with and ventilated effective area by 205,6 m2. Thereby the total minimum outside air flow rate in the basic ventilation amounts to...

All times the building cover was made as airtight as possible. With massive constructions it was all above the plasterwork, which took over the sealing function. The air exchange was usually realised by the leaky windows, which still had no circular seals. With the usual massive constructions, built after 1945, the relative...

Thermography is a helpful means at the visualisation of leakages on the wind and airtightness level. However on the one hand not always the theoretically necessary physical boundary conditions are available and on the other hand the construction progress not always the make an optimal building preparation possible...

Diese Studie berichtet über Lüftungsmessungen und die Ergebnisse von Bewohnerbefragungen von 102 neu errichteten Einfamilienhäusern in Finland. Die Resultate zeigen, dass die Lüftungsanlagen ständig benutzt wurden und die Gebläsedrehzahl-Einstellung sehr selten geändert wurde. Es gab eine geringfügige Tendenz...

A ‘standard’, as a quick look in a dictionary will tell us, is an ambiguous term: whereas technical standards refer to expertly developed and scientifically reasoned yardsticks for a comparative assessment of quality, legal standards refer to rules of law, i.e. regulations for conduct that are obligatory for people subject to this law by virtue of...

In May 2006 the international measuring standard ISO 9972 was published. It replaces the first edition from the year 1996 and is in large parts identical with the EN 13829:2000, which in Germany was published as DIN EN 13829 in February2001. In the following the differences of the two standards are confronted in a table, so that...

Der Leckageweg beeinflusst die Infiltrations- und Luftdruckbedingungen im Gebäude. Die Hauptzielsetzungen dieser Studie waren, die Verteilung der Leckageorte und der thermischen Brücken in Ein- und Mehrfamilienhäusern zu analysieren. Feldmessungen der Luftdichtheit und thermographische Messungen...

What is a pure area? In the case of the production of smallest structures, e.g. in production of microprocessors, or in the clinical range, e.g. in operating rooms, momentous problems can arise as a result of impurities in air. The only solution of this problem exists in the relocation of production, or the hygenically relevant ranges of medicine...