Project details



Energy Efficient Ventilated Façades for Optimal Adaptability and Heat Exchange enabling low energy architectural concepts for the refurbishment of existing buildings

Start date: 01.01.2015

Duration: 42 months

Coordinator: NOBATEK/INEF4

Budget: 3.4 M€


E2VENT main goal is the development of an Energy Efficient Ventilated Facades for Optimal Adaptability and Heat Exchange enabling low energy architectural concepts for the refurbishment of existing buildings.

The old buildings, which represents the vast majority of the building stock, are predominantly of low energy performance and subsequently in need of refurbishment work. Within the existing European building stock, a large share (approximately 34%) of the suburban multi-storey residential building stock is built in the 60’s 70’s, when there were only few or no requirements for energy efficiency. Those buildings are characterized by:
high energy losses through the envelope and high energy consumption
poor aesthetics, and a need for maintenance
low indoor air quality mostly related to humidity that can lead to a deterioration of the end  user's health.

E2VENT will develop, demonstrate and validate a cost effective, high energy effcient, low CO2 emissions, replicable, low intrusive, systemic approach for retrofitting of residential buildings, able to achieve remarkable energy savings, through the integration of an innovative adaptive ventilated façade system.

The developed technologies will be integrated in the ventilated facade, and a real time intelligent façade management system will control operation of the system based on meteorological prediction methods for forecasting in advance the decentralised electricity production and the energy (electrical and thermal) demand of the building enabling maximum RE usage. It will inter-operate with existing or latest state-of-the-art Building Energy Management System, to achieve optimum energy efficiency by reducing primary energy needs, CO2 emissions and peak loads, assuring at least the same comfort levels required by Member States Building Codes, at an affordable price.

List of achievements

The project publications are available here.

The EVENT system is an external thermal building refurbishment module with external cladding and air cavity that embeds: Efficient anchoring system; A Smart Modular Heat Recovery Unit for the air renewal while recovering energy losses; A Latent Heat Thermal Energy Storage based on phase change materials for heating and cooling peak saving. Both controlled on real time by a smart management system.


Contact person: Antoine Dugué