Uponor Siccus - Gulvvarmeplade på eksisterende gulv

Underfloor heating and cooling

Siccus dry installation

Uponor Siccus Dry Installation features a Lightweight Design’

Uponor Siccus underfloor heating has been developed for use with suspended timber floors. The system is suitable for new constructions as well as for modernising old buildings and results in a minimal construction height of 55 mm. It is quick and clean to fit, and can be walked on immediately after installation. All conventional floor coverings such as tiles, parquet, carpet and plastics with a maximum thermal resistance of Rλ,B = 0.15 m2K/W, are suitable.

What does the Siccus system contain and how does it work?

Uponor Siccus comprises just four components; mounting sheet, heat conducting plate, heating pipe and PE foil. It is light in weight: only 25 kg/m2 including the floor load distribution sheet. This is a real engineering bonus, especially for wooden joist constructions. The low-mass floor construction allows fast response temperature controls. The integral pipe guide channels in the Uponor Siccus mounting sheet hold the heat conducting plates and heating pipes. The mounting sheet is flexible to use, easy to cut and pre-fitted with channels in the ”header area” for Uponor PE-Xa and MLC pipes.


What are the different options for heat emission plates?

There are three heat emission plate options available, which can suit timber floor applications:

  • HEP300- For use with timber suspended or battened floors with joists/supports at 300mm centres. 20mm PEX pipe only. 
  • HEP400- For use with timber suspended or battened floors with joists/supports at 400mm centres.
  • HEP411- For use with sprung timber floors with battens spaced at 411mm centres, such as Junckers Unobat and Blubat Sports Floor Systems, suspended or battened floors with joists/supports at 411mm centres. 20mm PEX pipe only.




Siccus Installation video

A step by step video on installing a Siccus Underfloor Heating System

uponor siccus installation

Uponor Siccus in a nutshell

  • Quick to install; the floor can be walked on immediately
  • Low static weight and inertness
  • Suitable for composite pipe or PEX pipe dim. 16mm
  • Fast response temperature control
  • Can be laid directly on to an existing floor
  • Boards can be routed with ease so as to accommodate additional pipe grooves and channels
  • Finished floor coverings can be laid
    directly on top
  • Low profile height

Siccus Installation Manual

Underfloor heating installation picture

Siccus floor installation instructions

Underfloor heating installation instructions for a Siccus floor

PDF 206.56kB