A primary school in Lincolnshire has recently benefited from a wet-on-wet liquid waterproofing system. The flat roof of the main building, which includes a large roof dome and more than 30 roof lights, had reached the end of its serviceable life. The felt covering was leaking and there was limited insulation which meant the entire roof had to be upgraded.

To ensure a long-lasting waterproofing solution, Kemperol V210M was specified by roofing contractors East of England Roofing for an area spanning around 1,300 sq m. The existing felt was left in place to act as a vapour control layer and new insulation installed prior to applying the polyester-based liquid system.

Dave Worthington from East of England Roofing said: “The main contractor originally planned to refurbish the roof with another felt covering but when we explained the benefits of the Kemperol V210M system, the specification was changed.

“We’ve been using the product for 20 years and there are many benefits for building owners and end users. One of the main advantages is that it has excellent elasticity so can withstand any structural movement ensuring a very durable solution.

“As the system is liquid applied, this also makes it ideal for roofs with lots of detailing. For this project, we had to waterproof numerous roof lights, pipe penetrations and upstands. There was also a large octagonal dome featuring a pyramid roof, which had to be made watertight.

“The local authority and the school now have the assurance that the roof will be very hard wearing and reliably protected for decades.”