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CROSS regions
Condition assessments of exposed lightweight canopy roofs
Defects in lightweight canopy roofs, using underslung roofing sheets in many cases.
14 October 2022
CROSS Safety Report
Report ID: 1084
Region: CROSS-AUS
Photovoltaic installations - structural aspects
CROSS has concerns about some structural aspects of roof mounted PV and solar thermal panels.
1 November 2016
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Incorrect use of software for wind loads on solar panels
A reporter is concerned about designers relying completely on the output of software for structural analysis when they do not fully understand the requirements for data input.
7 November 2023
CROSS Safety Report
Report ID: 1212
Region: CROSS-AUS
Failure of reinforced autoclaved aerated concrete (RAAC) planks
In late 2018, the Local Government Association (LGA) and the Department for Education (DfE) contacted all school building owners to draw attention to a recent failure involving a flat roof There was little warning of the sudden collapse.
1 May 2019
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Aerated concrete slabs
A reporter discusses the failure of precast reinforced autoclaved aerated concrete (RAAC) slabs during construction.
1 October 2007
CROSS Safety Report
Report ID: 55
Region: CROSS-UK, CROSS-AUS, CROSS-US
Failure of RAAC planks in schools
A reporter was asked to investigate a reinforced autoclaved aerated concrete (RAAC) roof which had collapsed in a school.
1 April 2020
CROSS Safety Report
Report ID: 908
Region: CROSS-UK, CROSS-AUS, CROSS-US
Reinforced autoclaved aerated concrete roof planks - sharing experiences
A reporter has surveyed a number of buildings with reinforced autoclaved aerated concrete (RAAC) roof planks and wants to share their experiences to help others.
1 April 2020
CROSS Safety Report
Report ID: 874
Region: CROSS-UK, CROSS-AUS, CROSS-US
Structural safety of reinforced autoclaved aerated concrete (RAAC) planks
A Theme Page to raise awareness of and encourage knowledge sharing on the structural safety of RAAC planks.
CROSS Theme Page
Region: CROSS-UK, CROSS-AUS, CROSS-US
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