Reinforced Autoclaved Aerated Concrete (RAAC)

Reinforced Autoclaved Aerated Concrete (RAAC) is a reinforced form of lightweight concrete used to form panels or planks. It has no aggregate unlike common concrete. These were mainly used in flat roofs but also in some floor and wall panel construction in the UK from the mid-1950s to the mid-1990s. 

RAAC: Statement from the Royal Institution of Chartered Surveyors

04 September 2023

The public concern about this matter is understandable given the potential safety issues involved and the impact of current measures on students and teachers.

RICS and fellow professional bodies with specialist structural expertise have been working with government and building operators through the Construction Industry Council (CIC) to better understand the nature of RAAC risks and identify buildings constructed with it.

Through this work, RICS is actively advising the UK Department for Education (DfE) on surveys of the school estate the department has commissioned. We are working collectively with industry partners to provide appropriate professional guidance on remedial action to make the buildings and those occupying them safe.

Read RAAC: Advice and FAQS, for more information about RAAC and advice for the public and members.