Flow Screed Floors Speed Screed install a wide range of flow screed floors. Calcium sulphate screed accounts for around 80% of the total market of flow screed floors. Speed Screed are approved installers for all the major UK suppliers (Agreegate Industries Highflow S Tarmac Topflow Screed A  BreedonFlow Gypscreed CEMEX Supaflo Often described as [...]