Lightweight Screed A lightweight cement based screed, which provides weight saving and thermal insulation on floors and roofs. Cemscreed 1 A specially formulated cement for the site batching of rapid setting and rapid drying floor screeds and is sufficiently dry to receive any type of floor covering in just 1 day. Cemscreed 5 A special cement based binder which produces a rapid drying floor screed when mixed with graded aggregates and water. It is suitable for foot traffic after 12 hours and sufficiently dry to receive all types of floor covering after 5 days. Cemscreed Cemscreed is a special cement based binder for producing an early drying high strength floor screed when mixed with graded aggregates and water.