TONE Scaffolding Services Ltd. were challenged by our client, to design by calculation, and erect a temporary weather protection scaffold over a Motor Control Centre (MCC) due to water ingress through the roof of the kiosk. A MCC is a critical component on the site, as it monitors, controls and protects critical electrical items of plant and equipment, which is essential to the efficient operating of the site systems, any water ingress could cause a failure in the electrical systems.
The MCC kiosk is GRP constructed, therefore the scaffolding could not be mechanically tied into the building. For strength and stability, buttress bays were introduced weighted down with 1 tonne Kentledge blocks.
Due to the width/span of the building – an area of 450m2 – and the fragile integrity of the kiosk roof, the roof beams used were 750mm deep alloy beams, which had to be raised and positioned by mobile crane singularly and the scaffolding operatives had to Install the lacing & bracing tubes whilst straddling the beams. Once the scaffold was completed, the roof area was clad in corrugated iron sheets and the side walls of the scaffolding clad in Monoflex sheeting. We had to maintain a natural ventilation flow, due the ambient temperatures created by the operating equipment in the MCC kiosk.