Various concerns have been raised about the use of a type of concrete in the construction of public buildings known as RAAC (reinforced autoclaved aerated concrete). RAAC is a lightweight material which was used mostly in flat roofing between the 1950s and 1990s.
Aberdeen City Council has been aware of concerns about the use of this product and has previously conducted a range of surveys and inspections of buildings to assess whether these buildings have this material present. This work has identified several properties which have RAAC within their construction.
Four viable options are being reviewed for RAAC affected homes. The aim is for the Council to choose one of the viable options at a meeting on Wednesday 21 August 2024. A summary of the options are:
Option 1 Not viable: Adding timber runners to extend the bearing length at the support walls.
Option 2 Viable: Install a support timber frame under existing RAAC roof panels.
Option 3 Viable: Removal of RAAC panels and replace roof.
Option 4a Viable: Demolition only.
Option 4b Viable: Demolition and build new homes.
Further details about each of these options, including the works that would be included, advantages, disadvantages, indicative costs and timelines can be found below.
The survey has now closed.
The consultation has now closed