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Overloading a portal frame with suspended services
A reporter designing a single storey portal frame used a standard roof service loading of 0.25kN/m2. After the project was completed, a tenant for the unit took over fit out and added a considerable amount of sprinkler pipework into the roof. This created local overloading.
21 August 2023
CROSS Safety Report
Report ID: 1195
Region: CROSS-UK
Low pitched metal sheet roofs
A reporter is concerned about low pitch metal sheet roofing attached to trussed rafters.
1 April 2007
CROSS Safety Report
Report ID: 66
Region: CROSS-UK
Loading from solar panels
A reporter inspected a roof to discover that the structure was already overloaded with the self weight of the roof covering without the addition of solar panels.
1 January 2012
CROSS Safety Report
Report ID: 280
Region: CROSS-UK
PV solar panels
This reporter queries whether enough attention is being paid to the loads applied by PV (Photo Voltaic) solar panels added to roofs.
1 January 2012
CROSS Safety Report
Report ID: 266
Region: CROSS-UK
Solar panels and effect on snow slides from roofs
A reporter writes in connection with report 246, which discussed dangerous snow slides from buildings, and asks if any of the roofs had solar panels?
1 January 2012
CROSS Safety Report
Report ID: 269
Region: CROSS-UK
Concern about PV installations
A reporter who has been pricing PV installations for portal frames would like to draw the attention of CROSS to concerns regarding issues that are emerging within the industry.
1 January 2012
CROSS Safety Report
Report ID: 287
Region: CROSS-UK
Lightweight steel roof partial collapse
A hall constructed from thin cold rolled steel sections riveted together started collapsing when tiles were loaded on one side only.
1 April 2014
CROSS Safety Report
Report ID: 383
Region: CROSS-UK
PV panels blown off roof
Concerns are raised about the adequacy of fixings for PV panels after panels were blown off of a flat roof.
1 October 2015
CROSS Safety Report
Report ID: 519
Region: CROSS-UK
PV panels on domestic roof
A reporter raises concerns as they suspect PV panels are being erected on domestic (and commercial) roofs across the UK without adequate engineering analysis and design.
1 October 2015
CROSS Safety Report
Report ID: 528
Region: CROSS-UK
Failure of existing long-span wood roof truss following installation of new roof-top HVAC units
Failure of an existing long-span wood roof truss following installation of new roof-top Heating, Ventilating, and Air Conditioning (HVAC) units offers lessons in the special challenges of renovations to existing buildings.
1 September 2020
CROSS Safety Report
Report ID: 949
Region: CROSS-US
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