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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
Floor vibration in a gym
Vibration within the floor structure of a second floor gym gives rise to concern of structural resonance and possible fatigue of structural members.
26 August 2022
CROSS Safety Report
Report ID: 1106
Region: CROSS-UK
Flaws with partial encasements around steel columns
A structural assessment found that steel columns encased in concrete to mid-storey height were heavily corroded directly above the top of the encasements.
1 January 2016
CROSS Safety Report
Report ID: 517
Region: CROSS-UK
Defects in wrought iron girder from 1879
Defects were found in the strut members of a three span wrought iron girder from 1879 while major strengthening and refurbishment works were being carried out.
1 April 2016
CROSS Safety Report
Report ID: 570
Region: CROSS-UK
Defects found in previously repaired bridge
While carrying out strengthening work on a bridge, there was concern that by removing the non-structural encasement, alternative load paths had been removed.
1 April 2016
CROSS Safety Report
Report ID: 564
Region: CROSS-UK
PV panels on domestic roof
A reporter raises concerns as they suspect PV panels are being erected on domestic (and commercial) roofs across the UK without adequate engineering analysis and design.
1 October 2015
CROSS Safety Report
Report ID: 528
Region: CROSS-UK
PV panels blown off roof
Concerns are raised about the adequacy of fixings for PV panels after panels were blown off of a flat roof.
1 October 2015
CROSS Safety Report
Report ID: 519
Region: CROSS-UK
Lack of lateral stability in steel frame
Concerns were raised after the steel frame of a building was found to have a lack of horizontal and vertical bracing.
1 July 2016
CROSS Safety Report
Report ID: 540
Region: CROSS-UK
Installation of PV panels
A reporter's firm believes an oversaturated market of engineers carrying out assessments has drove the prices for assessments on roof structures accommodating PV panels down.
1 April 2016
CROSS Safety Report
Report ID: 533
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
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