English

The test results of BlowerDoor test and thermographic inspection at a nursing home, an administration building and a sports-hall are presented. The nursing home was revised thermically. The external walls were provided with a compound insulation system. Nevertheless the expected energy savings effect did not arise...

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...

Low-energy buildings up to the passive house level slowly become generally accepted also in Tschechien, which is naturally connected with suitable ventilation strategies. The contribution presents the most frequently used technical systems and discusses those properties and acceptance. The number of built very...

The fundamental requirements, already presented at the 1st European BlowerDoorSymposium, did not change, respectively practice has brought up some points. Still there is no standardised qualification profile on the part of the district chimneysweeper. That is based finally on the fact that the draft standard to the...

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...

Building airtightness is not a new topic of interest. Already in the seventies of the last century, intense work was done regarding building airtightness in the Nordic countries. In the Air Information Review of August 1980 (ref. 1) (figure 1), an article entitled Build tight ventilate right already very well described the challenges...

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...

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...

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...

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...