Legislating building energy performance: Putting EU policy into practice

The UK governmental strategy for fulfilling Article 3 of the Directive on Energy Performance of Buildings was implemented through the introduction of the Building and Approved Inspectors (Amendment) Regulations 2006 (England and Wales). These regulations defined the 'National Calculation Methodology' as the unified route for demonstrating compliance with energy performance criteria and required the use of accredited building energy performance prediction tools to implement associated calculations. A mixed-method study was used to synthesize a comprehensive assessment of the viability of adopting this approach for the new non-domestic sector. Key parameters of success measuring the adaptive capability of the UK construction industry, applicability of the methodology and suitability of accredited tools were developed as the framework for evaluation. The main findings outline shortcomings in the adaptation strategy adopted by industry, inconsistent implementation/enforcement approaches and fundamental tool limitations. The research concludes that although a number of positive aspects can be associated with the use of this approach for compliance demonstration, considerable efforts are required to extend its usefulness as a credible legislative support tool. Key recommendations are provided in the fields of research and development, policy formulation, and future industry practice.