Latest U-value Regulations June 2022

The following post will explain the latest changes to building regulations, in particular focusing on the U-value increases.

Why are building regulations changing?

Increasing the level of insulation in roofs, walls and floors will improve the achieved U-values. This means with lower U-values in place, there will be a reduction in the requirement for heat and power in homes.

Currently, heating and powering buildings in the UK accounts for 40% of our total energy usage. Making buildings more efficient will reduce demand for energy, aswell as saving homeowners energy bills.

As part of the Department Business, Energy & Industrial Strategy, they are aiming to half all energy usage by 2030. Their mission for this can be found at the following link – Click Here!

When are the changes coming in to place?

The Amendment Regulations and accompanying Approved Documents L: Volumes 1 and 2 come into force on 15 June 2022.

These changes however will not apply should the plans be deposited to a local authority before this date, and started prior to 15 June 2023.

Latest U-value Regulations June 2022

Main changes in relation to U-values

Whilst there are significant changes on the Part L documents, below are the U-value changes;

Table 1 – Notional dwelling specification of new dwelling
Element Type	Previous Minimum U-value	Updated 2022 Minimum U-value
Roof	0.13	0.11
Wall	0.18	0.18
Floor	0.18	0.13

Table 2 – New elements in existing dwellings
Element Type	Previous Minimum U-value	Updated 2022 Minimum U-value
Roof	0.18	0.15
Wall	0.28	0.18
Floor	0.25	0.18

Table 3 – Limiting U-values for existing elements in existing dwellings
Element Type	Previous Minimum U-value	Updated 2022 Minimum U-value
Roof	0.18	0.16
Wall	0.30	0.30
Floor	0.25	0.25

Source – Approved Document L: Conservation of fuel and power – Volume 1: Dwellings

Disclaimer – The U-values provided above are guidelines, and your target U-value should be either supplied by your building inspector or your architect. Prior to proceeding and insulating, please double check your target U-values.

Roof Details – Includes Pitched Roofs & Flat Roofs
Wall Details – Includes Solid Walls, Timber Frames, Dormer Cheeks & Dwarf Walls
Floor Details – Includes Suspended Timber Floors & Concrete Floors

SuperQuilt Insulation Pitched Roof

How to achieve these new U-values

SuperQuilt Insulation is a high performance multifoil insulation certified for Roofs, Walls and Floors. SuperQuilt is proven to save cost, space & installation time compared to using “just” PIR Insulation, such as Kingspan and Celotex.

To view how SuperQuilt Insulation can assist achieving your U-value, check out our Free and Easy to use Online U-value Calculator;

U Value Calculator

SuperQuilt Insulation Delivery Schedule

We offer SuperQuilt in a range of roll sizes. Our multi-layered blanket can be ordered online with free next working day delivery at the this link.

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