A popular Scunthorpe supermarket has recently benefited from a complete roof refurbishment using a Sika Liquid Plastics Built-Up Roof waterproofing system. The Asda store had to remain open throughout the project, requiring expert planning by Northampton-based contractor Ice Roofing.
The building, originally constructed in 1976, was suffering from water ingress and the roof was in urgent need of repair. To ensure that the store could remain trading throughout the project, the client required a cold applied waterproofing option. Managed by Uplands Retail Ltd, the contract involved a tight timescale to refurbish several of the supermarket’s large roof areas, totalling 2000sq m.
Ice Roofing, a Sika Liquid Plastics Quality Assured contractor, already had a good reputation with Asda thanks to a number of previous jobs and were the obvious choice for the job.
Gareth Davies, Ice Roofing, explained: “We knew that our partnership with Sika Liquid Plastics would give us the advantage of additional expertise when specifying a product for the project.
“The team at Sika conducted a detailed survey, including thermal imaging using the latest technology, allowing us to see where the real problem patches where. This enabled us to reduce the area of roof we would have to completely strip back to the steel deck, which was really significant in keeping disruption to a minimum.”
A further challenge presented itself when asbestos was found in areas of the felt that needed to be stripped away. Ice Roofing brought in the experts to remove the existing substrate containing asbestos, while maintaining the integrity of the store’s waterproofing and complying with strict HSE standards.
Completed in just 10 weeks, two teams of three first increased the height of the roof by increasing the insulation thickness around various complex details. Sika Liquid Plastics’ Decothane Gamma 20 roof coating system in Slate Grey was then applied over the entire roof area. The cold applied, zero flame, zero heat Built-Up Roof system allowed the store to remain operational throughout the works; a key benefit for the local community.
A mineralised walkway was also installed to enable ease of access for future maintenance work.
Gareth added: “We worked fast and smart to deliver a seamless finish on the roof, with the liquid system offering ease of application around plant and penetrations. The superior 20-year guarantee, signed off by Sika Liquid Plastics when works were completed, sealed the deal for the client.”