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Reinforced aerated autoclaved concrete planks found on pitched roof of 1990s hospital building
A building constructed in the early 1990s has been found to contain reinforced aerated autoclaved concrete (RAAC) planks. This date is important since it is much later than the previously thought last significant use of RAAC in buildings in the UK and potentially affects the scope of buildings that could require screening for RAAC problems.
26 August 2022
CROSS Safety Report
Report ID: 1125
Region: CROSS-UK
Timber truss
The reporter has been dealing with an application where the engineer involved discovered proprietary timber girder trusses with some glued joints that have come loose.
1 February 2007
CROSS Safety Report
Report ID: 62
Region: CROSS-UK
Collapse of proprietary timber roof
A proprietary timber roof system spanning 8m over a school hall collapsed. The roof was constructed in 1959, and formed from a ply-web beam system, with hardboard ceiling and ply deck and asphalt covering.
1 January 2012
CROSS Safety Report
Report ID: 273
Region: CROSS-UK
Snow loads on agricultural buildings in Scotland
The reporter raises concerns that the snow loading situation with regards to agricultural buildings (in Scotland) and perhaps all buildings may require review.
1 July 2011
CROSS Safety Report
Report ID: 248
Region: CROSS-UK
Collapse of folded plate timber roof at a school
This report is about a critical safety issue concerning folded timber roofs, in various settings, including over school halls.
18 October 2023
CROSS Safety Report
Report ID: 1160
Region: CROSS-UK
RAAC planks in a 1970s shopping centre
An existing large shopping centre built circa 1975 had a number of external storerooms and loading bays with roofs constructed using reinforced autoclaved aerated concrete (RAAC) planks. The planks had deflected to the extent that they needed replacing.
20 February 2023
CROSS Safety Report
Report ID: 1155
Region: CROSS-UK
Progressive collapse of an old mill building during a fire
An old mill building that was constructed around 1830 collapsed unexpectedly in a fire.
1 October 2008
CROSS Safety Report
Report ID: 122
Region: CROSS-UK
School fascia board failure
A section of pressed steel gutter and plywood fascia board at a school collapsed during or after a heavy rainstorm.
1 April 2009
CROSS Safety Report
Report ID: 137
Region: CROSS-UK
Snow loading in Scotland - collapsed warehouses
A reporter provided a list of 40 whisky warehouse buildings that had collapsed in the recent heavy snow conditions in northern Scotland (January/February 2010).
1 July 2011
CROSS Safety Report
Report ID: 193
Region: CROSS-UK
Snow loading in Scotland
A reporter’s practice who specialises in remediation have had new instructions on five roof collapses after a period of heavy snowfalls (January 2010).
1 July 2011
CROSS Safety Report
Report ID: 183
Region: CROSS-UK
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