01636 639900
[email protected]
U-VALUE CALCULATOR
hero-accessories-bg

UK Building Regulations

The UK government has been progressively tightening energy efficiency standards to reduce carbon emissions and energy consumption. With the latest update made in 2022, the current requirements demand efficient insulation standards for various elements of a building to ensure buildings are designed and constructed to the highest standards possible

BOOK YOUR DISCOVERY SESSION GET YOUR FREE U-VALUE CALCULATION
hero-accessories

Part L: Section 6 Regulations

At the core of the current building regulations are the Approved Part L requirements, focusing on the “Conservation of Fuel & Power.” This introduces the Fabric Energy Efficiency Standard, which sets a recommended upper limit to reduce energy consumption and enhances comfort by integrating high-quality insulation, airtight construction, and efficient windows and doors.

This standard also assesses the energy efficiency of new buildings, considering factors such as fabric U-values, thermal bridging, external heat gain, and more.

Part L: Building Regulations U-Value Requirements

U-values measure the rate of heat transfer through a building element (roof, wall, floor). Lower values indicate better insulation.

Select Country

Please select a country from the dropdown below to view the current figures

ENGLAND
ENGLAND
Scotland
Wales
Northern Ireland

SELECT VARIABLE

RESIDENTIAL BUILDINGS
For Commercial Buildings
Country Application New Build (W/m2K) Extension (W/m2K) Refurbishment (W/m2K)
England Flat Roof 0.11 0.15 0.16
England Pitched Roof (Rafter level) 0.11 0.15 0.16
England Pitched Roof (Ceiling level) 0.11 0.15 0.16
England Wall 0.18 0.15 0.30 *
England Floor 0.13 0.18 0.25
Scotland Flat Roof 0.11 0.15 0.16
Scotland Pitched Roof (Rafter level) 0.11 0.15 0.16
Scotland Pitched Roof (Ceiling level) 0.11 0.15 0.16
Scotland Wall 0.17 0.18 0.30*
Scotland Floor 0.13 0.18 0.25
Wales Flat Roof 0.11 0.15 0.16
Wales Pitched Roof (Rafter level) 0.11 0.15 0.16
Wales Pitched Roof (Ceiling level) 0.11 0.15 0.16
Wales Wall 0.18 0.18 0.30*
Wales Floor 0.13 0.18 0.25
Northern Ireland Flat Roof 0.11 0.15 0.16
Northern Ireland Pitched Roof (Rafter level) 0.11 0.15 0.16
Northern Ireland Pitched Roof (Ceiling level) 0.11 0.15 0.16
Northern Ireland Wall 0.17 0.18 0.30*
Northern Ireland Floor 0.13 0.18 0.25

*Where insulation is installed externally or internally

Country Application New Build (W/m2K) Extension (W/m2K) Refurbishment (W/m2K)
England Flat Roof 0.18 0.18 0.18
England Pitched Roof (Rafter level) 0.16 0.16 0.18
England Pitched Roof (Ceiling level) 0.16 0.16 0.16
England Wall 0.26 0.26 0.30*
England Floor 0.18 0.18 0.25
Scotland Flat Roof 0.18 0.18 0.15
Scotland Pitched Roof (Rafter level) 0.16 0.16 0.18
Scotland Pitched Roof (Ceiling level) 0.16 0.16 0.16
Scotland Wall 0.26 0.26 0.30*
Scotland Floor 0.18 0.18 0.25
Wales Flat Roof 0.18 0.18 0.18
Wales Pitched Roof (Rafter level) 0.16 0.16 0.18
Wales Pitched Roof (Ceiling level) 0.16 0.16 0.16
Wales Wall 0.26 0.26 0.30*
Wales Floor 0.18 0.18 0.25
Northern Ireland Flat Roof 0.11 0.15 0.16
Northern Ireland Pitched Roof (Rafter level) 0.11 0.15 0.16
Northern Ireland Pitched Roof (Ceiling level) 0.11 0.15 0.16
Northern Ireland Wall 0.17 0.18 0.30*
Northern Ireland Floor 0.13 0.18 0.25

*Where insulation is installed externally or internally

Achieve Building Regulations With Multifoil Insulation

text-image

Multifoils are fully compliant with Building Regulations and provide a great solution for improving overall thermal performance to help meet or exceed these higher U-values targets. Meeting these standards in retrofit projects can be challenging, especially when extensive modifications are not feasible. Multifoil insulation presents a potential solution:

When installed to specification, Multifoil insulation will satisfy all requirements, as well as providing additional benefits such as eliminating the need for extra vapour control or breather membrane products, bulky insulation, and unnecessary supporting structures.

SuperFOIL offers several retrofit solutions that achieve building regulations without the use of traditional insulation materials.

Advanced multifoil products like  SuperFOIL SF40 which are only 65mm thick, are some of the highest performing multifoil products available today. With this versatility and efficiency, multifoil insulation is a perfect choice for meeting building regulations without compromising on performance or space requirements.

How Can We Help?

CPD Programme

icon

Extend your knowledge and
skills by enrolling in our CPD courses.

Learn more

U-Value Calculations

icon

Receive personalised u-value
calculations straight to your inbox.

Learn more

Discovery Session

icon

Learn more about improving
your building’s energy efficiency.

Learn more

Related Articles

post

Meeting Building Regulations With Multifoil in 2024

You may have heard that multifoil insulation won’t get building…

Arathy

May 22, 2024

READ MORE
post

Achieving Future Homes Standards With Multifoil Insulation

Importance of Energy Efficiency in UK Construction In the UK,…

Arathy

May 1, 2024

READ MORE
post

3 Aspects of Energy Efficiency Most Homeowners Neglect

Energy efficiency means doing more with less energy. All homeowners stand…

Bjorn Bojen

April 11, 2016

READ MORE
22960

Before you go, be sure to

Download Your FREE

INSULATION GUIDE

22961
22962
22963