Current
Core Supplement
Technical Document
Guidance on using natural daylight via rooflights to comply with Building Regulations L1 and L2 2010 - Conservation of fuel and power for dwellings and buildings other than dwellings - as amended in 2013.
Only applies to England. Supersedes NARM Technical Document NTD06: Designing with rooflights: supporting the guidance in ADL2A and ADL2B (2010).
Developing standards and codes of practice in the provision of natural light in built environments, NARM represents UK designers and manufacturers of rooflights from polycarbonate domes and barrel vaults, to GRP factory rooflights and structural glass skylights and atria. Now known as The Rooflight Association.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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