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Volumetric modular buildings and fire
A report has been received concerning volumetric modular construction, in the form of permanent stacked modular buildings. The reporter is concerned that the existence of extensive cavities within the compartments, combined with the lack of appropriate care when connecting the modules could lead to the concealed spread of fire and smoke, noting some recent fire events.
Fire protection of light gauge steel frames
A reporter is concerned that there is a lack of understanding regarding system testing and associated procedures, the purpose of fire assessments, and the role of materials that contribute to the structure’s fire protection.
Misleading fire rating on hatches
Retrospective fitting of various amenities including TV aerials, broadband, and satellite connections, may result in new access points being made in walls, ceilings, or through floors. These openings need to be made good using a method that provides the required fire safety properties for that specific situation, including integrity, insulation, and resistance to smoke spread.
Composite deck boards in common access balconies
A reporter informs CROSS that decking boards formed of a composite material contributed to external fire development in a block of flats and rendered the means of escape and firefighting access unusable.
Failure of beams in listed building
Conversion and refurbishment work on a listed building led to structural failures of beams and subsequent difficulties in resolving safety matters between the various agencies involved.
The risk of collapse of multi-storey CLT buildings during a fire
A reporter presents concerns about the fire safety of multi-storey buildings comprised of cross-laminated timber (CLT) structures.
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Inadequate punching shear reinforcement in flat slabs
This report highlights how remedial works were required in a number of residential buildings after inadequate punching shear reinforcement was identified.
Fire protection of mixed hot/cold rolled steel structure
This report describes how a high-rise building had to be remediated after it was found there was insufficient fire protection encasement of structural elements.
Suspended ceiling replacement in high rise block
A reporter was involved in replacing a suspended ceiling after a few loose panels had fallen, resulting in a minor injury in one case.
Disproportionate collapse assessment of large panel system buildings
A reporter has become concerned by the approach being taken by some engineers to assess the risk of disproportionate collapse due to fire in large panel system (LPS) buildings.