Screed Over Insulation

Screed over insulation is the most common way of installing wet underfloor heating systems, both traditional sand and cement or liquid flowing screeds can be used.  It is mainly used on new builds, extensions and renovations.

This method means that the screed you lay will not sit directly on the structural base, but instead on top of a layer of installation with the underfloor heating pipes underneath.

Benefits from this method:

  • Quick and easy installation using our multilayer UFH pipe.
  • Offers the highest heat outputs
  • Most new builds/Extension already utilise this method so no additional costing in construction.
  • Can use almost any floor finish.

Aspects from the diagram

  1. Structural Base
  2. Foil backed Insulation layer to Current Regulations
  3. 500-gauge Polythene layer with Perimeter insulation lapped and taped. (Recommended for all screed types)
  4. UFH Pipes clipped directly to the Insulation layer
  5. Screed over covering the Pipes (sand & cement 65mm min or Flowing Screeds 50mm minimum)
  6. Finished floor over

How can we help?

Here at Underfloor Heating Shop, we specialise in a range of quality underfloor heating systems. Our trained team have the skills and expertise to advise you on the best method of applying screed based on the underfloor heating system you are putting in place and what you hope to get out of it (e.g. become more energy efficient, have a system which heats up quickly etc.).

If you would like to find out more about what we offer, and how we can help improve your property and day-to-day living, get in touch with one of our friendly team using our online enquiry form. 

Ready to start planning an underfloor heating system for your home or business? Check out our online store to find out which system will best suit your property.

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