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Concern over concrete test methods used on site

A reporter is concerned about the test method a contractor uses to justify the strength of concrete placed on site.

13 December 2022

CROSS Safety Report

Report ID: 840

Region: CROSS-UK

Fire spread through balconies

This report highlights that the extensive use of combustible materials in the construction of balconies can result in fire spread over the external wall to an extent which is inadequate for building safety, even buildings less than 18m.

17 November 2022

CROSS Safety Report

Report ID: 1052

Region: CROSS-UK

Do planning applications hinder safety improvements?

A potential issue about the reconstruction of a structurally inadequate external fire escape from a building has been raised with CROSS.

17 November 2022

CROSS Safety Report

Report ID: 1043

Region: CROSS-UK

Fire extinguishers in common areas

A reporter raises a point about the provision of fire extinguishers in the common parts of flats. They go on to say that extinguishers should be provided in some cases, to cover identified risks, but that they are not specified due to cost savings pressures and assessor unawareness.

17 November 2022

CROSS Safety Report

Report ID: 1041

Region: CROSS-UK

Punching shear in concrete slabs at perimeter columns

A reporter raises concerns about the underestimation of bending moments in perimeter columns when assessing punching shear in adjacent concrete slabs. Punching shear failures can be brittle and catastrophic. Designers need to include the appropriate ultimate moment in the design actions.

14 October 2022

CROSS Safety Report

Report ID: 1122

Region: CROSS-AUS

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

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Fire in roofs containing PV panels

A reporter is concerned about the monitoring of photovoltaic panels and whether all the possible lessons are learned from current experience.

26 August 2022

CROSS Safety Report

Report ID: 1032

Region: CROSS-UK

Plastic composite fencing

A reporter is concerned about the possibility of fire spread between buildings when the external plastic composite fencing is involved in a fire.

26 August 2022

CROSS Safety Report

Report ID: 1034

Region: CROSS-UK

Unsafe design of retrofit cantilever balconies

A structural assessment of a number of new balconies being added to an existing building revealed critical concerns in respect of fixings back into the existing brickwork.

26 August 2022

CROSS Safety Report

Report ID: 1128

Region: CROSS-UK

Construction products- fire test certificates

A reporter has notified CROSS-AUS regarding the potentially inappropriate use of regulatory/compliance fire test methods on certain products. This has led, they say, to the circulation of inaccurate test certificates in the market and possibly the use of these products on buildings where they may not be suitable.

2 August 2022

CROSS Safety Report

Report ID: 1060

Region: CROSS-AUS