Approved Document L1B 2006

This book sets out to make buildings more energy efficient, saving one million tonnes of carbon per year. These much awaited changes will have a significant effect on design and construction practices and are intended to improve energy efficiency standards by 40 per cent. "Approved Document L" will be published in four parts: Approved Document L1A: New dwellings; Approved Document L1B: Existing dwellings; Approved Document L2A: New buildings other than dwellings; and Approved Document L2B: Existing buildings other than dwellings.
 
This book sets out to make buildings more energy efficient, saving one million tonnes of carbon per year. These much awaited changes will have a significant effect on design and construction practices and are intended to improve energy efficiency standards by 40 per cent. "Approved Document L" will be published in four parts: Approved Document L1A: New dwellings; Approved Document L1B: Existing dwellings; Approved Document L2A: New buildings other than dwellings; and Approved Document L2B: Existing buildings other than dwellings.