The 35th AIVC Conference " Ventilation and airtightness in transforming the building stock to high performance", was held in Poznań, Poland, 24-25 September 2014. Contains 86 papers.

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The GK environmental house is the first office building in Norway built according to the passive house concept. In such buildings, it is crucial to develop a ventilation strategy to reduce the energy use outside of the operating time.
Per M Holth, Mads Mysen, Axel Cablè, Kari Thunshelle
The impact of over-tempered air on the perceived indoor climate was evaluated by questionnaires filled in by the users of the first office building with passive house standard in Norway.
Axel Cablé, Mads Mysen, Hugo Lewi Hammer, Kari Thunshelle
The Kindergarten Solhuset is built according to the Active House vision with an emphasize of good daylight conditions and fresh air.
Peter Foldbjerg, Thorbjørn Færing Asmussen, Jens Christoffersen
The present paper addresses experiences with ventilation and thermal comfort in the Active House concept, based on the Active House Specification and realized Active Houses.
Peter Foldbjerg, Kurt Emil Eriksen, Karsten Duer
The thermal comfort of the residential buildings Sunlighthouse in Austria and LichtAktiv Haus in Germany are investigated with a particular focus on the summer situation and the role of solar shading and natural ventilation.
Peter Foldbjerg, Thorbjørn Færing Asmussen, Moritz Fedkenheuer, Peter Holzer
The Marienlyst School is the first educational building in Norway built according to the passive house standard. This building benefits from a super-insulated and airtight envelope.
Axel Cablé, Hugo Lewi Hammer, Mads Mysen
An inherent element of the passive house is the system of exhaust ventilation in air supply.
Michal Michalkiewicz, Malgorzata Basinska
Demand controlled heat recovery ventilation systems, which combines heat recovery (HRV) and demand controlled (DCV) is growing fast among ventilation manufacturers.
Colette Madeline, Stéphane Berthin, Pierre Kraus
In this article we compare to ventilation strategies to heat a “passive house” office building using only the ventilation system.
Hugo Lewi Hammer, Mads Mysen, Axel Cablé, Kari Thunshelle
Increasing airtightness and isolation of residential buildings in today’s climates cause challenging situations for the summer indoor climate.
Bart Cremers
Is Demand-controlled ventilation a relevant answer to face the new challenges of the Building sector, which requires everyday higher energy efficiency and better indoor air quality?
Jean-Luc Savin, Stéphane Berthin, Marc Jardinier
The “VIA-Qualité” project (2013-2016) focuses on low energy, single-family dwellings. It proposes the development of quality management approaches (ISO 9001) which aim to increase both on-site ventilation and indoor air quality.
Adeline Bailly, Franck Duboscq, Romuald Jobert
For the coming energy-efficient buildings, the guarantee of energy performance becomes a major challenge. It is therefore crucial to implement accurate and reliable measurements, in order to ensure this performance.
Adeline Bailly, Cedric Lentillon
The effect of a cooling jet from ceiling on thermal comfort, perception and subjective performance in warm office environment (29.5 °C) was studied. Altogether, 29 participants (13 male and 16 female) participated.
Henna Maula, Hannu Koskela, Annu Haapakangas, Valtteri Hongisto
Central ventilation systems with heat recovery have shown their limits especially within the context of building energy retrofit.
Fabien Coydon, Jens Pfafferott
The indoor climate in residential buildings is affected by the people that live in the house and their activities. One of the goals of a ventilation system is to prevent excess humidity in the house by removing part of the moisture.
Bart Cremers
Measurements were performed in a test room at SINTEF building and infrastructure, Oslo.
Vegard Aslaksen
An office building of the Fraunhofer Institute for Solar Energy systems (Fraunhofer ISE) in Freiburg was retrofitted in 2012 with an innovative concept based on technology integration in the façade.
Fabien Coydon, Maxime Duran, Arnulf Dinkel, Sebastian Herkel
Demand controlled ventilation (DCV) considerably reduce the ventilation airflow rates and energy use compared to Constant Air Volume (CAV) systems. DCV in commercial buildings is probably a prerequisite to achieve ambitious energy-goal.
Mads Mysen, Axel Cablé, Peter G. Schild, Kari Thunshelle
Most existing non-residential buildings have Constant Air Volume (CAV) ventilation leading to over-ventilation in periods with low or no occupancy.
Mads Mysen, Kari Sørnes