RR1212: Reinforced Autoclaved Aerated Concrete (RAAC in England: Assessment of number of RAAC panels

This report, prepared by WSP UK Ltd., presents an initial estimate of the number of Reinforced Autoclaved Aerated Concrete (RAAC) panels in England. RAAC was used throughout construction projects in England between the 1950s and 1990s due to being a lightweight and relatively low-cost material.

Note: The approximate number of RAAC panels in England as presented in this report are estimates only. There is a large degree of uncertainty in these estimates, reflecting the limited data available at the time of writing.

The estimated number of RAAC panels derived in this report is to be used to inform later stages of work in which WSP will liaise with wider stakeholder groups and experts on the potential risks posed by RAAC panels in England. This work is documented in HSE report RR1213^[1].

Visit the RR1212 report (PDF) ^[2]

This report and the work it describes were funded by the Health and Safety Executive. Its contents, including any opinions and/or conclusions expressed, are those of the authors alone and do not necessarily reflect HSE policy.

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