A Sika Liquid Plastics Decothane Gamma 20 system has proved to be the perfect fit for a 2000sq m project at Crofton Infants School in Orpington.

Registered Sika Liquid Plastics roofing contractor Alpha Specialist Roofing Ltd, based in Kent, was specified for the job and recommended by the project’s chartered building consultant, Meadowside, who had worked with the contractor on a number of projects before.

The size of the project and the quick installation time required, resulted in the specification of the Sika Liquid Plastics 2240M2 Gamma 20 system with metal primer. GRP termination bar, check trim and counter flashings, finished with a PU sealant were also used in the project.

The solar chippings from the existing asphalt were removed in preparation for the liquid system, which meant de-scarifying the existing chippings. Once removed, the Sika Liquid Plastics Decothane system was put in place across the 2,000sq m roofing area, allowing noiseless installation as well as providing the client with a 20-year all encompassing guarantee.

Built on their previous experience, Alpha Specialist Roofing Ltd and Meadowside’s working relationship resulted in a highly successful project without major setbacks, completed in just two weeks – two weeks under the set time frame.

Alpha Specialist Roofing Ltd Kevin Roe comments on the project: “The coating system looks really good and the client was extremely happy. The board pattern was originally poorly installed, however this was not detrimental to the liquid system and the client was happy to accept a few aesthetic issues ensuring we stopped all the leaks, which of course we did.

“Crofton Infants School also had some window installation taking place. We were able to phase the works in line with their programme quite easily, as this was a very large area. However, the only challenge we came across were the out of school clubs which meant technically we were working on a live site; but with good communication and the relevant areas fenced off we were able to complete works without incident.”