Siccus dry installation

Uponor Siccus dry system - lightweight and fast for multiple applications

Uponor Siccus underfloor heating system is a flexible solution that is characterised by its low construction height and its low weight. The system is suitable for new constructions as well as for modernising old buildings. It is quick and clean to fit, and can be walked on immediately after installation.

Uponor Siccus comprises just four components; mounting sheet, heat conducting plate, heating pipe and PE foil. It is a light weight system, including the floor load distribution sheet. This is a real engineering bonus. The low-mass floor construction allows for fast response temperature controls. The mounting sheet is flexible to use, easy to cut and pre-fitted with channels in the “header area” for Uponor PEX a pipes and Uponor multilayer pipes.


Application areas:

  • Radiant underfloor heating and cooling
  • Dry installation
  • New builds and renovation



Siccus 12mm

  • Minimum construction height: 25mm with laminate
  • Pipe and dimension: Uponor Comfort Pipe 12 x 1.7 mm
  • Maximum heating performance: 50 W/m2
  • Weight: 18 kg/m2 with parquet

Siccus 14mm

  • Minimum construction height: 50mm
  • Pipe and dimension: Uponor Comfort Pipe PLUS 14 x 2.0 mm and Uponor Comfort Pipe 14 x 2.0 mm and Uponor MLCP RED pipe 14 x 1.6 mm
  • Maximum heating performance: 90W/m2 with gypsum panel and tiles
  • Weight: 25kg/m2 with gypsum panel 25mm

Siccus 20mm

  • Minimum construction height: 52mm with 22mm parquet
  • Pipe and dimension: Uponor Comfort Pipe PLUS 20 x 2.0 mm
  • Maximum heating performance: 85W/m2
  • Weight: 23kg/m2 with 22mm parquet

Siccus FX

  • Minimum construction height: 43mm with 13mm parquet / 50mm with gypsum panel
  • Pipe and dimension: Uponor comfort Pipe PLUS 16 x 2.0 mm and Uponor MLCP RED pipe 16 x 2.0 mm
  • Maximum heating performance: 75W with 25mm gypsum panel
  • Weight: 24kg/m2 with gypsum panel 25mm


Uponor siccus installation video

  • Step by step installation of a siccus underfloor heating system
  • Installation of all components such as EPS insulation, aluminium heat spreaders and pipes on top


Benefits of the Uponor Siccus system


Proposal of construction with Siccus systems

Uponor Siccus 12 mm
Uponor Siccus 20 mm

Discover more on Siccus underfloor heating in our brochures


Uponor siccus


PDF 2.79MB

Uponor Siccus

Technical information

PDF 2.43MB

Uponor Siccus 12 mm

Mounting instruction

PDF 1.64MB

Uponor Siccus 14 mm

Mounting instruction

PDF 1.28MB

Uponor Siccus FX

Mounting instruction

PDF 656.15kB

Uponor underfloor heating dry installation


PDF 1.26MB