To make the EPCs more reliable, particular attention must be paid to the reliability of the data that
allow the evaluation of the key performance indicators.
These building characterisation data concern the intrinsic characteristics of the various envelope
components and HVAC systems, they are qualified and quantified mainly during the on-site inspection
of the building and according to some information and documents that can be obtained and consulted
before the visit.
For existing buildings, assessors are faced with the crucial problem of the difficulty of collecting
reliable data without having to resort to extensive, long, and costly investigations.
Indeed, the assessor only has a short time for the building inspection, so it is essential that he can rely
on a structured protocol that allows a reliable of data and information to be collected.
From these observations, some objectives of tasks 1.1, 1.2 and 1.3 of the EPC RECAST project arise: to
define a European and harmonized protocol in the form of a “Data Model” for the description of the
building. Develop and integrate enrichment and verification methods into this protocol and link this
protocol to existing technical components, all to facilitate and make the data collected more reliable.
We focus here on the intrinsic characterization of the building and its HVAC systems, the weather data
and data related to the building use, are rather defined in a conventional and standard way within the
framework of the EPCs.
Considering the process “
