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CROSS regions
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
Timber roof truss bracing problem
Lateral movement of the roof tiles on a two-storey mid-terrace house built approximately 35 years ago with a trussed rafter roof led to the discovery of broken bracing.
1 July 2014
CROSS Safety Report
Report ID: 354
Region: CROSS-UK
Rigid wall flexible diaphragm roof collapse in earthquake
Part of the roof of a one-story building in California collapsed during a 2019 earthquake.
1 March 2020
CROSS Safety Report
Report ID: 877
Region: CROSS-US
Bottom-chord bracing for metal plate-connected wood trusses used in light-commercial applications
Concerns regarding metal plate-connected wood trusses in light-commercial construction when subject to net uplift.
1 September 2020
CROSS Safety Report
Report ID: 985
Region: CROSS-US
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