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What is Approved Document L?

Approved Document L – Conservation of Fuel and Power (2021 Edition), supports Part L of Schedule 1 to the Building Regulations 2010, and takes effect on 15th June 2022 for use in England. Approved Document L, Volume 1: Dwellings, gives guidance on how to comply with Part L of Schedule 1 to the Building Regulations and the energy efficiency requirements for dwellings, and Document L, Volume 2: Buildings other than dwellings, should be used as guidance when referring to non-domestic buildings.

Glazing Vision have created a whitepaper which focuses on everything you need to know about Approved Document L in relation to rooflights and roof windows. The whitepaper covers:

VOLUME 1 – DWELLINGS: ROOFLIGHTS AND ROOF WINDOWS

• Calculating the target primary energy rate, target emission rate and target fabric energy efficiency rate in dwellings
• Limiting heat gains and losses in rooflights and roof windows in dwellings
• New rooflights and roof windows in existing dwellings, including extensions
• Work to rooflights and roof windows in existing dwellings

VOLUME 2 – BUILDINGS OTHER THAN DWELLINGS: ROOFLIGHTS AND ROOF WINDOWS

• Calculating the target primary energy rate and target emission rate in buildings other than dwellings
• Limiting heat gains and losses in rooflights and roof windows in buildings other than dwellings
• New rooflights and roof windows in existing buildings, including extensions
• Work to rooflights and roof windows in existing buildings

Download the whitepaper now, or get in touch to learn more.