Rebecca Adlington Leisure Centre, Mansfield - Roof refurbishment

Tender description

Nottinghamshire County Council (the Council) is seeking tenders, on behalf of Mansfield District Council (MDC), The current roof membrane and insulation build-up at Rebecca Adlington Leisure Centre, installed in 2009 as part of the major refurbishment of the Centre, is failing in a number of areas. Repairs to the existing roof membrane over the last few years have failed to resolve the roof leaks in a number of areas and water ingress and damage is evident inside the building. The replacement of the roof membrane and roof mounted air handling units was identified in the 2019 Building Condition Survey report (by Oakleaf Building Surveyors Ltd for MDC) as requiring lifetime replacement in 2029. Due to the ongoing leaks, SIG Design Technology (who were involved with the original Rhepanol single ply roof membrane installation in 2009) were requested to investigate and produce a roof build-up report and to advise on the roof build-up condition where water penetration is occurring. This inspection took place in February 2022 and included intrusive core testing of the roof build up above the structural deck. It was found that water / moisture is trapped within the warm roof build up. Lot 1: The decision has been taken for the consideration of the wholesale replacement of the single ply membrane and insulation across the whole roof scape. Due to the ongoing water penetration and fabric damage it was advised that these roofing works be pulled forward from 2029 to 2023/24 to minimise future damage to the fabric of the building. Due to the scale of the roofing works required (i.e. when roof work involves significant renovation and is more than 50% of the total roof area), the roofing works specification will also need to be scaled up to comply with current building regulations and will need Building Regulations approval. Whilst replacing the roof covering the existing air handling units and ducting, which currently sit on the roof (in roof areas D & G – see drawing 001), need to be removed to allow the roof works to take place. Technical advice has provided the recommendation that the air handling plant should also be replaced at the same time as the roofing works (i.e. once the roofing works have taken place). The air handling plant (to both the changing rooms and gym plant) were due to be replaced, as identified on the above condition survey report, in 2029. Therefore the best approach was to pull both the roof and AHU replacement schemes forward to take place together in 2023/24.