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New Part L Government Guidelines | What’s all this about?

New Part L Regulations

Adapting to changes in regulations can be a bit of a headache – so we’ve put together the essential information about these new Part L changes for you.

The New Part L Regulations come into effect on 15th June 2022 – this doesn’t apply to works that are subject to building notices, full plans application or initial notices submitted before 15/06/22, providing that the site works begin within a year of the new regulations coming into effect.

View the full New Part L Government Guidelines.

Replacements, Refurbishments & Extensions to Existing Homes

Replacement windows and doors need to have better performance than the elements that they are replacing.

 








Product Type

U-Value limit

(Upper limit)

OR Energy Rating limit

(Upper limit)

Windows

1.4

B WER

Doors with 60% or more glazed internal face

1.6

C DER

External Fire Doors

1.8

Doors

1.4

B DER

 

New-Builds

Some may specify goods with lower U-values than the above as the new build thermal performance is calculated for the complete building, with a U-value limit of 1.6.






Product Type

U-Value limit

OR Energy Rating limit

Windows

1.6

Doors

1.6

 

For more information, 

…or speak to a knowledgeable member of staff at Edge! Call 0345  021 3333 or email [email protected].