A simple guide to the new insulation requirements.
Updated: Nov 1, 2022
With the cost of living crisis and energy bills on the rise by October. We look at the latest building regulation requirements to help insulate your home or workplace and to help lower those energy bills.
Our new series will help to simplify the new changes in regulations including frequently asked questions so you know what to expect and what options are available to you!
Building Regulations Simplified.
Part L of the Building Regulations sets the levels of thermal insulation required when carrying out refurbishments, extensions or new builds. These regulations apply to both domestic and non-domestic projects. These are expressed as U-values and have different targets for different applications such as the roof, floors and walls.
Domestic Projects Target U Values - England Only from June 2022:
Application: | New Build (Starting Pt) | Existing Building - Extension | Existing Building - Refurbishment |
Wall | 0.16 | 0.18 | 0.30 Internal / External Wall Insulation 0.55 for Cavity Wall Insulation |
Floor | 0.11 | 0.18 | 0.25 |
All Roof Types | 0.11 | 0.15 | 0.16 |
