Heating Systems | Screed

UFW Screed Laying a floor complete with underfloor heating takes precision and experience. Accurate calculations of the amount of heat for each room and precise heating system controls are required, which is why we have our technical team here to help you.

All concrete floors in both commercial and domestic buildings are covered with a screed layer which provides the final finish onto which the floor covering is applied, being either tiles, carpets, wood etc.

It is important that the screed is of suitable depth to meet British Standards which provides strength and sufficient coverage over the underfloor heating pipework to avoid the screed cracking.

Drying / Setting times of Common Floor Screed Products

Product Setting time Drying time Strength
Traditional screed (Premixed 1:4) 24 – 48 hours 1mm per day 27 – 30N
Traditional screed (site batch 1:4) 6 – 12 hours 1mm per day 27 – 30N
Fast – set screed (1:5) 1 – 2 hours 10 – 15mm per day 22 – 27N
K-screed (1:4) 6 – 12 hours 25mm per week 30N+
Tarmac Truscreed (1:4) 24 – 48 hours 25mm per week 30N+
Gyvlon / Supaflo etc (flowing screeds) 6 – 48 hours 1mm per day 25 – 27N
Granolithic screeds 12 – 28 hours 2mm per day 40N+
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