The airtightness of buildings gains in importance ever more for the planning of buildings. The regulations for the securing of the energy-saving thermal protection demand beyond that a durably air-impermeable building envelope, in order to avoid unnecessary thermal losses and building damages. This has effects on...

The investigation of the QHA (quality community timber construction and development, registered association) compare and evaluate by the example of a built reference house the energetic and economic efficiency of current building services systems with dwelling ventilation. As basis serve gas condensing boiler...

Manufacturing and development processes in the electrical industry (microchips), the technology for smallest elements with high precision, the medical research and the food technology as well as operating theatres require laboratories and/or areas with particularly unsoiled air. The clean-room technology dedicates itself to the...

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...