These are detailed documents drawing on knowledge and experience from within The Rooflight Association’s influential Technical Committee, as well as independent research.
Approved Document L 2021 (England)
Rooflights & Roof Windows
Approved Document L 2021 (Scotland)
Rooflights & Roof Windows
Approved Document L 2021 (N Ireland)
Rooflights & Roof Windows
Approved Document L 2021 (Wales)
Rooflights & Roof Windows
Assessment of thermal performance of out-of-plane rooflights
A dynamic thermal modelling study of a typical metal clad building to evaluate overhating in the UK
Designing with rooflights and controlled artifician lighting to reduce CO2 emissions
Designing with rooflights – supporting part L buidling regulation guidance in England
Analysis of improving daylighting and lighting controls on a number of existing non-domestic buildings
Understanding rooflight u-values
