Regulatory Body
Communities and Local Government, www.communities.gov.uk
Name of Regulations
Part L - Conservation of Fuel and Power. There are four 'Approved Documents':
Part L1A - New Dwellings
Part L1B - Existing Dwellings
Part L2A - New Non-Dwellings
Part L2B - Existing Non-Dwellings
Download Regulations Here
National Calculation Methodologies
Dwellings – SAP 2005 (new buildings) / rdSAP (existing buildings)
Non-Dwellings – SBEM (Simplified Building Energy Model) or DSM (Dynamic Simulation Model)
IES Software
Dwellings - iSAP
Simple non-dwellings – VE-SBEM (free)
All non-dwellings – VE-DSM
Public buildings – <DEC Assessor> (free)
IES Accreditation
IES training and examination certification which demonstrates software competency is offered on all products. IES has linked with key Accreditation Schemes: BRE, CIBSE, ecmk, Elmhurst Energy, Quidos, Sterling, Stroma and NHER who recognise our certification. Once accredited with a scheme users can automatically lodge EPCs and DECs on the national register via our software.
Different Non-dwelling EPC Levels
Energy Assessors can only lodge EPCs within their accreditation banding, which can be at one or several levels depending on their experience on the different software:
Level 3 can undertake energy inspections of existing simple non-dwellings with frequently occurring characteristics using the SBEM method. This includes IES’s VE-SBEM.
Level 4 can undertake energy inspections of new-build and existing simple non-dwellings using the SBEM method. This includes IES’s VE-SBEM.
Level 5 can undertake energy inspections of any new-build and existing non-dwellings using the DSM method. This includes IES’s VE-DSM.
