9 November 2021, Webinar – Building Energy Efficiency and Indoor Air Quality – Building Energy Codes, Data Utilization for Improving Energy Efficiency, and Air Cleaning

IEA Energy in Buildings and Communities (EBC) research projects are examining building energy codes, exploring data utilization for improving energy efficiency, and investigating air cleaning technologies.

English

23 November 2021, Webinar – Emerging smart ventilation strategies for energy efficient IAQ management

In this webinar, we addressed the opportunities offered by smart ventilation strategies, which include a wide range of systems depending on the type of sensing parameters (CO2, humidity, occupancy, etc.), the type of sensing combinations, the type of installation (centralized/decentralized), the types of control algorithms, etc. We also quantified their potential from and energy and IAQ point of view based on existing and newly developed assessment framework in the annex.

English

9 December 2020, Webinar – Resilient Ventilative Cooling in practice

The current development in building energy efficiency towards nZEB buildings represents a number of new challenges to design and construction. One of these major challenges is the increased need for cooling in these highly insulated and airtight buildings, which is not only present in the summer period but also in the shoulder seasons and in offices even in midwinter. Resilient ventilative cooling can be an energy efficient solution to address this cooling challenge in buildings.

English

21 February 2020, Webinar – Durability of building airtightness: Assessment through laboratory testing

Mandatory or voluntary building airtightness testing has come gradually into force in many European countries mostly because of the increasing weight of building leakage energy impact on the overall energy performance of low-energy buildings. Therefore, airtightness levels of new buildings have significantly improved in the last decade, but a lot of questions remain regarding the durability of airtightness products.

English

7 June 2022, Webinar – Innovation and Energy Policy for Buildings: International Collaboration to Accelerate Change

IEA Energy in Buildings and Communities (EBC) research projects are helping to substantially reduce energy demands in buildings and fully exploit renewable energy sources. With a focus on Germany, this webinar will explore energy policy for buildings and how national and international innovation activities are contributing to this.

English

31 May 2022, Webinar – Future weather data and heatwaves

Well-insulated and air-tight buildings are known to be vulnerable to overheating. An increase in the severity and duration of heatwaves is expected, resulting in more severe overheating risks, affecting on their turn the health and mortality of building users. To achieve more future-proof buildings, it is crucial to design buildings that are “resilient” to overheating in future climate conditions.

English

10 May 2022, Webinar – Indicators to Assess Resilience of Cooling in Buildings

Well-insulated and air-tight buildings are known to be vulnerable to overheating. An increase in the severity and duration of heatwaves is expected, resulting in more severe overheating risks, affecting on their turn the health and mortality of building users. To achieve more future-proof buildings, it is crucial to design buildings that are “resilient” to overheating in future climate conditions.

English

30 November 2021, Webinar – Inspection of ventilation systems in new regulations in European countries

In the context of energy use reduction, low energy buildings are becoming more widespread. This kind of construction requires a good envelope airtightness to prevent uncontrolled leakages of conditioned air leading to energy losses. As a result, more and more ventilation systems are installed to ensure a sufficient air change rate, to guarantee good indoor air quality and building durability while controlling energy losses.

English

8 November 2021, Webinar – Impact of wind on airtightness test results

Building airtightness tests have become very common in many countries, either to comply with minimum requirements of regulations or programmes, or to justify input values in calculation methods. Thus, it has become very important to understand and quantify the reliability of these tests. According to the present ISO 9972 standard, the zero-flow pressure shall not exceed 5 Pa for the test to be valid. On one hand, in moderately windy conditions it may be impossible to perform a pressurisation test in accordance with the standard, even if an uncertainty analysis would show small test errors.

English

12 October 2021, Webinar – Smart materials for energy efficient IAQ management

This webinar, organized by the Air Infiltration and Ventilation Centre & the IEA EBC Annex 86 “Energy Efficient Indoor Air Quality Management in Residential Buildings” (https://annex86.iea-ebc.org/), addressed the opportunities to use novel materials (from advanced functional nano-materials to bio-based building materials) as building components to actively/passively manage the IAQ, for example, through active paint, wallboards, and textiles coated with advanced sorbents or catalysts and quantify their potential, based on the as

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