E

Emissivity
The ratio of the radiant energy emitted from a surface at a given temperature to the radiant energy emitted by a black body at the same temperature.

Environmental management
Environmental management is the organization and management for controlling how the environment is taken into account in the construction process.

In order to optimize environmental management in new construction, it is necessary to

• write a methodological framework (with reference to ISO standard ISO 9004-1),
• setup an appropriate organization (multidisciplinary transverse approach),
• evaluate proposed solutions,
• elaborate a communication.
  

Exfiltration
Leakage of air outwards from a building.