UNDERFLOOR HEATING

LIQUID / FLOWING SCREED is a blend of BINDER and selected aggregates mixed with clean potable water to produce a flowing pumpable screed (manufactured to BSEN 13813:2002) which is ideal for application over warm water and electric underfloor heating systems.

KEY FEATURES

  • Produced to a controlled flowable consistency to fully encompass heating pipes

  • Elimination of voids resulting in uniform heat transfer and maximised thermal efficiency of the underfloor heating system. • Reduced screed depth when compared to traditional sand cement screeds minimising heat storage, resulting in a floor which responds rapidly to user requirements

  • Extremely low shrinkage - will not curl and minimises the risk of cracking 

  • Does not require reinforcement 

  • Increased productivity - 500-1000 m2per day can be easily achieved 

  • Heating systems can be commissioned in accordance with BS1264:2001-4 clause 4.4, as early as 7 days after application of the screed

  • Minimal thermal expansion (0.012mm/Mk) 

  • Excellent thermal conductivity (2.2W/Mk)

  • Environmentally friendly

  • No curing required

  • Ready for foot traffic in 24-48 hours.

  • Self compacting – fully encompassing pipes/cables

 

TYPICAL INSTALLATION POINTS

  • The area to be screeded must be made watertight to prevent leakage

  • The polythene slip membrane installed over the insulation must be overlapped and sealed to prevent loss of screed 

  • Pipes or cables must be securely fixed to prevent floatation and lifting during application of the screed 

  • Best practice is to fill pipes prior to application of the screed to check for leaks, this also reduces the risk of pipes floating whilst the screed is being poured 

  • Ideal flow 230-250mm measured using the DIN1060 flow ring 

  • Minimum cover to pipes or cables must be 30mm

  • If required surface laitance must be removed prior to commissioning of under floor heating to assist drying 

  • Heating must be commissioned in accordance with BS1264:2001-4 clause 4.4 and run in accordance with manufacturers instructions to accelerate force drying of the screed prior to application of the floor finish 

  • Screed moisture content must be a maximum of 0.5% and 1.0% respectively prior to application of subsequent impermeable and permeable floor coverings 

  • We recommend the use of floor thermostats with electric under floor heating elements

WE OPERATE IN THE FOLLOWING AREAS

Birmingham

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Worcestershire

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Gloucestershire

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Bristol

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West Midlands

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Wolverhampton

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Leicestershire

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Shrewsbury

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London

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Oxford

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Based in the West Midlands, Central Flow Screed is one of the UK’s leading installers of liquid floor and flowing screeds. As approved contractors with the major screed suppliers we provide nationwide coverage and have over 15 years specific industry experience.

If your looking for Floor Screed in the West Midlands, Look no further.
© 2021 Central Flow Screed & Underfloor Heating
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