RAAC Repairs with Safe and Secure
Our experienced construction professionals have significant experience in the remediation and repair of structures made with RAAC.
At Safe and Secure, we can investigate, assess, monitor and, if needed, conduct repair work under the guidance of structural engineers.
Most of the buildings that have used RAAC are long past their functional life expectancy and without proper maintenance it is possible for the RAAC units to collapse without warning.
The Standing Committee on Structural Safety (SCOSS) flagged the issue for RAAC material not being safe back in 2019. RAAC becomes highly dangerous when unmanaged and unmonitored.
It is critical that all buildings suspected of containing RAAC panels are surveyed without delay. A register should be introduced identifying any areas where RAAC has been used so they can be properly monitored.
What is RAAC?
RAAC stands for Reinforced Autoclaved Aerated Concrete
RAAC is a lightweight material used for walls, roofing and flooring during the post war period up until 1990. It was increasingly popular between the 1950s and 1970s due to is production costs and simplicity to make. RAAC was used to help build hundreds of buildings such as schools and hospitals all around the UK.
RAAC is created from a combination of cement, lime and aeration agent. It is a cheaper alternative to universal concrete, swifter to produce and easier to install, its aerated meaning its bubbly, similar to an aero chocolate bar. Its structural performance is drastically dissimilar from traditional reinforced concrete, one of the biggest factors is that its less durable.
Overall, the way in which RAAC is created explains that it is a weaker material than traditional concrete. In fact, the material is only intended to last 30 years which is why so many buildings around the UK are checking for it.
RAAC Safety Risks
You will probably be aware from the news that there is considerable concern regarding the possible failure of Reinforced Autoclaved Aerated Concrete (RAAC) in schools and other public buildings. It is important to realise that many blocks of flats, particularly those built in the 1950s, 60s and 70s, and less so in the 80s, may also possess this material, principally used in flat roofs, but which may also be present in floors, walls and pitched roofs.
Its structural integrity degrades over time, as the aeration holes harbour moisture that can erode both itself and the metal reinforcements within it.
Structural failure could be sudden and extremely dangerous.
How we can help?
We provide a bespoke service for each of our client's needs. This includes taking care of any technical, planning, or structural requirements you may need.
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We offer a complimentary survey of your property.
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Partnered with national Structural Engineers to support with a final expert analysis of RAAC.
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We can carry out further investigation to confirm whether moisture is present. If moisture is present this may require more urgent action. The moisture in the roof could increase the likelihood and speed of deterioration of the RAAC.
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If remediation is required, we handle every aspect of refurbishment, starting from the initial assessment and survey, all the way through design, supply and installation.
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Our team here at Safe and Secure is equipped with extensive expertise and training to ensure safe and professional removal and replacement work.
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Additionally, we offer follow-up work when needed, to help keep your property safe and up-to-date.
Contact us for a free, no-obligation assessment today!
