LoginEN 16798-7:2017 considers that windows on roofs that have a pitch below 60° are not included on the windward side whatever their orientation.
42nd AIVC - 10th TightVent - 8th venticool Conference - Rotterdam, Netherlands - 5-6 October 2022
The 42nd AIVC Conference "Ventilation Challenges in a Changing World", was held in Rotterdam, Netherlands on 5-6 October 2022. Contains 99 papers and/or summaries.
Volume content
Better Estimation of Cross-ventilation through Roof Windows in an Attic - Possible Improvement for EN 16798-7:2017 | 2022 | English | 10 pp
Assessing the “sufficient ventilation” requirement for Austrian buildings - Development of a Monte Carlo based spreadsheet calculation to estimate airing intervals and mould risk in window ventilated buildings | 2022 | English | 10 pp
In Austria the lack of guidelines or standards has caused many discussions and disputes on the question if “sufficient ventilation” can be ensured with window airing only, in particular in newly constructed, airtight residential buildings.
The effect of airflow guiding components on effective ventilation rates in single-sided ventilation applications | 2022 | English | 13 pp
Wind-driven single-sided ventilation (SSV) is present in many existing buildings across Europe and with new Near Zero Energy Building (NZEB) regulations for the refurbishment of the existing building stock, its attractiveness as a non-invasive, lo
Climate correlation model to identify thermal comfort and IAQ strategies in naturally ventilated residential buildings | 2022 | English | 10 pp
Occupants in residential buildings usually control natural ventilation through window openings.
Assessing natural ventilation strategies to improve thermal resilience to extreme temperatures of the residential buildings in Barcelona | 2022 | English | 10 pp
In future years the frequency, duration and magnitude of extreme heat events, such as heat waves, is expected to increase due to climate change.
Methodology for the constitution of a restricted set of heatwaves, derived from climate projections, that can be used for building performance simulations | 2022 | English | 10 pp
In the context of climate change, Building Performance Simulations are used to assess the ability of passive buildings to maintain acceptable comfort conditions, or to limit the air conditioning energy consumption during heatwav
RENOVAIR : a study of the evolution of airtightness, ventilation, comfort and indoor air quality in energy efficient refurbishment social housing operations in France | 2022 | English | 15 pp
Many European programs offer eco-conditioned financial aid to support public policies for the decarbonization of buildings.
Room pressure differential is an important aspect in order to guarantee sufficient contamination control, but is difficult to control in airtight cleanrooms.
By 2050, the European council proposed to achieve total decarbonization in buildings. In this way, building energy models are key factors to predict the energy consumption in the design, use and retrofit stages.
Building Enclosure Air Leakage in Commercial Buildings: Energy Codes, Testing and Practical Limitations | 2022 | English | 10 pp
While the importance of air barrier systems in buildings has been understood for decades, it is only in the past decade or so that they have been given appropriate attention in the energy codes of most countries.
French building airtightness database after 10 years of operation: statistical analyses of about 500,000 measurements | 2022 | English | 11 pp
With the constant evolution of the French EP-regulations, good building airtightness has become mandatory to reach required energy performance. More than 60,000 airtightness tests are performed each year since 2015.
Worldwide, the demand for airtightness tests of tall buildings with a height of approximately 100 m is increasing.
Determining infiltration from the Pulse tests – the establishment of an evidence base of utilising a low-pressure approach for measuring building airtightness and energy modelling | 2022 | English | 10 pp
Building air infiltration rate is required as an important input in the calculation of building heat loss.
Air Leakage Detection in Building Façades by Combining Lock-In Thermography with Blower Excitation | 2022 | English | 9 pp
Air leakage in building envelopes is responsible for a large portion of the building’s heating and cooling requirements. Therefore, fast and reliable detection of leaks is crucial for improving energy efficiency.
As part of the mandated standards for estimating the energy performance of buildings CEN 16798-1 and -2 was developed to provide input for the indoor environment (thermal comfort, air quality/ventilation, lighting, acoustic) to energy calculations
Start of the Pandemic Preparedness Program through Ventilation - Knowledge Gaps and application of the results | 2022 | English | 9 pp
Ventilation and air cleaning of interior spaces are promising methods for the reduction of airborne pathogen spread and may reduce the number of (airborne) infections.
ASHRAE’s 2022 publication of a new position document on indoor carbon dioxide (CO2) has been a significant contribution to ongoing discussions of how indoor CO2 can be used to understand ventilation and indoor air quality (IAQ).
AIRBODS: Airborne Infection Reduction through Building Operation and Design for SARS-CoV-2 | 2022 | English | 4 pp
The Airborne Infection Reduction through Building Operation and Design for SARS-CoV-2 (AIRBODS ) project aim is to deliver guidance on the ventilation operation and future design of non-domestic buildings and to quantify the risk of, and reduce th
There is large amount of research on COVID-19 infections including the spread and removal mechanisms of the virus in indoor spaces.
Air cleaning has been considered an alternative method of improving indoor air quality and, in some cases, as a supplement to ventilation.