Submitted by Maria.Kapsalaki on Fri, 01/14/2022 - 12:05
While building airtightness is a key concern in Nearly Zero-Energy Buildings in most European climates, there exists already a wide range of commercially-available products specifically designed to minimise leakage in building envelopes. The objective of this webinar was to give information on the performance and properties of these products based on research including laboratory and field tests. The speakers also provided information on standards already published and under development on this subject.
Submitted by Maria.Kapsalaki on Fri, 01/14/2022 - 11:55
While building airtightness is a key concern in Nearly Zero-Energy Buildings in most European climates, there exists already a wide range of commercially-available products specifically designed to minimize leakage in building envelopes. The objective of this webinar was to give information on the performance and properties of these products based on research including laboratory and field tests. The speakers also provided information on standards already published and under development on this subject.
Submitted by Maria.Kapsalaki on Tue, 10/26/2021 - 09:45
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.
Submitted by Maria.Kapsalaki on Tue, 10/05/2021 - 07:52
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.
Submitted by Maria.Kapsalaki on Thu, 05/20/2021 - 11:15
Extensive research studies in many countries have found gaps between the design intent and real-world operation of buildings, which often lead to much higher energy use in practice than was estimated at design stage. While the reasons for such performance gaps are varied and complex, IEA Energy in Buildings and Communities (EBC) research projects have recently been making progress in resolving them.
Submitted by Maria.Kapsalaki on Fri, 03/26/2021 - 16:53
The Air Infiltration and Ventilation Centre (AIVC) in collaboration with IEA EBC Annex 86 organized a workshop consisting of a series of four webinars on:
Submitted by Maria.Kapsalaki on Mon, 03/22/2021 - 10:12
Progressing the scientific basis of indoor environmental quality is essential to understand which aspects can be better optimised to substantially reduce energy use in buildings. In recent years, IEA Energy in Buildings and Communities (EBC) international research projects have been investigating for this purpose both indoor air quality and thermal comfort. The embodied impacts of buildings and their services systems are also a focus of EBC's research.
Submitted by Maria.Kapsalaki on Wed, 03/17/2021 - 12:25
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.
Submitted by Maria.Kapsalaki on Mon, 03/01/2021 - 07:41
The Air Infiltration and Ventilation Centre (AIVC) in collaboration with IEA EBC Annex 86 organized a workshop consisting of a series of four webinars on:
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