RAAC works to Domestic Properties in West Lothian

On 17th April 2023 The Institution of Structural Engineers published the Document “Reinforced Autoclaved Aerated Concrete (RAAC) Investigation and Assessment – Further Guidance” which amongst other things, altered the recommended minimum end bearing for RAAC Roof Panels from the previous standard of 45mm to the new standard of 75mm. Following a structural survey, the presence of RAAC was identified at a number of domestic properties, both common entrance flats and low-rise properties. As such a programme of works is being developed to replace all RAAC roof panels in WLC owned domestic properties. This contract will target properties in selected streets in the Bathgate, Broxburn, Linlithgow, and Livingston areas of West Lothian. The streets containing the houses in question are a mixture of West Lothian Council owned houses, houses owned by other Registered Social Landlords, as well as privately owned and/or rented houses. All the houses are ex local authority or Development Corporation houses. In the majority the houses are part of terrace rows and West Lothian Council do not own any entire terrace. As such cognisance of the fact that non West Lothian Council houses will be adjacent to houses where work will be taking place and that all efforts will need to be taken to ensure the integrity of both the adjacent structure in terms of stability and weather proofing. The Contractor shall deliver the following services: Up to 17 Common Entrance Flats - The works extend to replacement of the RAAC roof planks with a new roof to falls and new roof drainage where required. Works include removing the existing waterproofing roof covering; removal, disposal of the RAAC structural roofing panels and installation of new flat roof, removal and disposal of all existing bin store doors located within each common entrance area, reinstatement of internal services such as lighting and any other electrical services, smoke detection and ventilation ductwork where affected by the works, decoration, removal and replacement of store room doors; and making good to other affected areas. A number of the common entrance blocks are in mixed tenure ownership, and as such they may not be included in the works programme. West Lothian Council will also consider the removal/demolition of the common entrance areas to blocks where majority ownership agreement can be established, and contractors should take cognisance of this.

On 17th April 2023 The Institution of Structural Engineers published the Document “Reinforced Autoclaved Aerated Concrete (RAAC) Investigation and Assessment – Further Guidance” which amongst other things, altered the recommended minimum end bearing for RAAC Roof Panels from the previous standard of 45mm to the new standard of 75mm. Following a structural survey, the presence of RAAC was identified at a number of domestic properties, both common entrance flats and low-rise properties. As such a programme of works is being developed to replace all RAAC roof panels in WLC owned domestic properties. This contract will target properties in selected streets in the Bathgate, Broxburn, Linlithgow, and Livingston areas of West Lothian. The streets containing the houses in question are a mixture of West Lothian Council owned houses, houses owned by other Registered Social Landlords, as well as privately owned and/or rented houses. All the houses are ex local authority or Development Corporation houses. In the majority the houses are part of terrace rows and West Lothian Council do not own any entire terrace. As such cognisance of the fact that non West Lothian Council houses will be adjacent to houses where work will be taking place and that all efforts will need to be taken to ensure the integrity of both the adjacent structure in terms of stability and weather proofing. The Contractor shall deliver the following services: Up to 69 Houses - The works extend to: replacement of the RAAC roof planks with a proprietary insulated flat roof, laid to falls and new roof drainage where required. Works include removing the existing waterproofing roof covering; removal, disposal of the RAAC structural roofing panels and installation of new flat roof; reinstatement of internal services such as lighting and any other electrical services, smoke detection and ventilation ductwork where affected by the works; decoration; and making good to other areas which will be affected during the course of the works.