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Fire protection considerations for roof structures in building design
The reporter highlights concerns that Approved Document B (ADB) is being misapplied or misinterpreted when applying structural fire protections to a roof structure.
20 February 2024
CROSS Safety Report
Report ID: 1249
Region: CROSS-UK
'Design' for alterations to a dwelling carried out by an unsuitable person
A reporter was called upon to review a design for the removal of a loadbearing wall during the refurbishment of a residence. A builder was already on site but had stopped work since they considered the engineering design to be unsatisfactory and the structural designer was not responding to their queries. The reporter found that the structural design being followed was far from competent.
21 August 2023
CROSS Safety Report
Report ID: 1236
Region: CROSS-UK
Fire hazards in historical modular timber framed buildings
A reporter has raised fire safety concerns suggesting the potential existence of a systemic issue pertaining to the design and construction of modular timber frame systems.
20 February 2024
CROSS Safety Report
Report ID: 1243
Region: CROSS-UK
Parapet wall collapse
The sudden failure of parapet coping stones on an old two storey industrial building caused the stones to fall onto a road and pavement below.
1 January 2018
CROSS Safety Report
Report ID: 711
Region: CROSS-UK
Wind damage to roof with PV panels
A reporter describes how during a heavy storm a big area of roof tiles that were adjacent to PV panels blew down.
1 October 2016
CROSS Safety Report
Report ID: 590
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
Inadequate end bearings for transfer beams
Whilst advising a steel fabricator on tendering for a transfer structure steel frame, a reporter's firm noticed a serious design error with the bearing pressures at the supports of a transfer beam.
1 October 2017
CROSS Safety Report
Report ID: 644
Region: CROSS-UK
Contractor uses incorrect fixing bolts for masonry support angles
A correspondent noticed that proprietary masonry support angles specified to support the outer leaf of masonry had been incorrectly connected to the steel beam using carriage bolts.
1 July 2019
CROSS Safety Report
Report ID: 794
Region: CROSS-UK
Fire protection of steelwork supporting a timber floor
A reporter shares concerns that developers and Building Control officials are assuming that, if a timber joist floor construction is suitable to provide 30 minutes fire resistance loadbearing capacity then the structural steel supporting members within it will be similarly protected.
20 February 2024
CROSS Safety Report
Report ID: 1234
Region: CROSS-UK