Summary of Part L 2010

Introduction

The new Approved Documents for Part L of the Building Regulations in England and Wales were published by the Government’s Department for Communities and Local Government (CLG) on 30th April 2010.  They will come into effect on 1st October 2010. The previous amendments to Part L in 2006 introduced very few significant changes for products from the fenestration industry. This was in recognition of the major steps the industry had taken to develop energy efficient products in time for the 2002 changes. However, the expectation was that significant improvements would be required from the industry for 2010.

Headline changes:

• Significant reductions in target carbon dioxide (CO2) emissions for all new buildings
• Higher requirements for Window Energy Ratings (WERs) in replacement glazing
• Greater restrictions on the use of centre pane U-values in measuring compliance
• Recognition of the benefits of supplementing existing single glazing with low-e secondary glazing
• Increased focus on the risk of overheating in summer

Click here for Part L 2010 Bulletin 10, which sumarises the changes relevant to glazing, which come into force on 1st October 2010.

Further information

For more information on Part L 2010, or our range of products, please contact our Technical Advice Centre (email us at pilkington@respond.uk.com or phone on 01744 692000).