This user guide covers software facilities in the Virtual Environment for testing compliance with the 2021 edition of The Building Regulations and for generating EPCs within the same framework.
The requirements of The Building Regulations 2010, Part L2 (2021 England/ 2022 Wales additions) as applied to new buildings are set out in Approved Documents L2A[1]. These documents (England and Wales) should be consulted for guidance on submissions for Part L2 compliance.
introduction including ‘What is an Approved Document?’ section.
It’s important to note the both England and Wales refer to separate L2A documents.
Part L2 (2021) – England
The broad requirements of L2 are set out in the Requirement section of Approved Document L2A[1] (referred to in this document as ‘L2A’). They cover:
Part L2 (2021) – England
The detailed requirements are outlined in Section 0: The Requirements, under the heading Energy performance of building calculations (paragraph numbers refer to L2A):
L2A should be consulted for details of special considerations and exemptions applying to particular classes of buildings.
Some of the requirements of Part L2 cannot be tested in software (testing and commissioning fall into this category).
The requirements tested by the software are Regulations 25, 26, 26C, 27, 27C, which are implemented in the software as follows.
The contents of 1.2 Overview of Part L2 (2021) ApacheSim
