An innovative dry floor screed from Knauf Drywall boosts the green credentials of new and highly sustainable primary school buildings under construction in the Devon countryside, near Totnes. About 1,800m2 of thermally transparent Knauf Brio Dry Floor Screed was specified for the new Dartington C.E. Primary and Nursery School, to ensure maximum efficiency from its underfloor heating, from specialist supplier Nu-Heat. Knauf Brio is a gypsum fibre-board, specially developed for new or refurbishment flooring and for use with underfloor heating or cooling systems.