GN12, Ponding on Flat Roofs, has been reviewed and updated.
Guidance Note 12 (GN12) Ponding on Flat Roofs has been reviewed and updated. The guidance is specifically about flat roofs with exposed coverings. As well as a general overview on the topic, the guidance also details the issues caused by ponding and considerations to avoid excessive ponding.
2026 has been a mixed bag weather wise, but it’s safe to say we’ve had more than our fair share of rain and grey miserable skies. It’s very easy to get carried away when the sun finally makes an appearance.
NFRC have collaborated with The Bat Conservation Trust (BCT) to produce guidance for bat and roof risk management and considerations during roofing works.
