Your guide to Approved Document L (England) 2021
Approved Document L 2021 came into force in England on 15 June 2022, bringing big changes to thermal regulations for both new and existing buildings.
To help you understand what’s changed, what it means to current and future building projects, plus how ROCKWOOL insulation solutions can assist in meeting and exceeding the new requirements, our straightforward guide to Approved Document L 2021 is now available.