Reinforced Autoclaved Aerated Concrete (RAAC) is a lightweight form of concrete. It was commonly used as a construction material between the 1950s and mid-1990s. It is most commonly found in the form of precast panels in roofs, (particularly roofs) and in floors and walls.

There has been a lot of press coverage in 2023 and 2024 regarding RAAC. This is likely because it has been found in many public buildings and schools. As such, the Government have released guidelines for identifying and what to do about it.

Reinforced Autoclaved Aerated Concrete

RAAC – how we can help?

At Martin Redston Associates we have completed a number of inspections to review and report on suspected cases of RAAC. One of our experienced structural engineers can visit your property or commercial building to complete a non-intrusive inspection. Following our visit we will provide a report for you confirming if RAAC (Reinforced Autoclaved Aerated Concrete) exists or not. We will, where necessary advise either what rectifying measures to take or what further investigation is needed.

If there is a requirement for immediate temporary propping we will advise of this as soon as possible. Our temporary works team can visit and review within a few days. They will design an immediate scheme for you to implement. Whilst this taking place our engineers will develop and suggest a permanent solution to the problem.

It is important to understand that not all buildings from the period will have RAAC. But, if you are concerned, it is better to get the situation reviewed by one of our team.

Please contact us for more assistance and to discuss your requirements.

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