System plates are plastic sheets with pre-formed grips to hold the pipe in position. These are laid on top of insulation panels and hold the pipe in place before the floor is screeded.
This solution allows fast installation and ensures even spacing of the pipe. The sheets can be cut to size with a utility knife and lock together to prevent any screed ingress under the plates. The sheets can support foot traffic, so will protect the pipe if other trades are on site.
Staple systems offer a cost effective solution for screeded floors. Simply staple the pipe to the insulation panels before the screed is applied.
This option offers flexibility of design and is a great solution for installers who want to minimise cost and are comfortable in spacing and laying out pipework.
The heat output is the result of a combination of factors including the underfloor heating system installed, the floor finish installed over it, the underfloor heating pipe spacing and the designed flow/return temperatures.
Below is a guide to typical heat outputs based on different pipe centres and floor coverings.
|Heat source efficiency||No covering||10mm tiles||25mm stones||4mm vinyl||7mm laminate||6mm carpet||18mm timber||12mm carpet||12mm carpet +
|TOG value of typical floor finish||0.00||0.07||0.15||0.16||0.44||0.75||1.13||1.50||2.00|
|Hep2O Underfloor Heating System||Pipe Centres|
|Staples inc 65mm Screed||100mm||6.05||5.77||5.48||5.45||4.64||4.00||3.42||3.01||2.58|
|System Plates inc 65mm Screed||150mm||5.07||4.86||4.64||4.61||4.00||3.50||3.05||2.71||2.36|