Report 958 - Roof collapse at primary school

Confidential Reporting on Structural Safety. Report 958: Roof collapse at primary school.

This concerns the collapse of a roof at a 1960s school constructed with loadbearing masonry walls, a suspended concrete first floor and a flat timber roof that had been re-covered in 2015. The roof comprised new felt covering over insulation, above the old felt and supported on woodwool boarding spanning between proprietary timber ply-box joists at approximately 1.2m centres. There was a suspended plasterboard ceiling supported by a timber framework.