Ceiling heating and cooling

Thermally Activated Building Systems (TABS)

Uponor Thermally Activated Building Systems (Uponor TABS) for sustainable and cost efficient heating and cooling

Cooling or heating water is circulated through the Uponor pipes, which are embedded within the concrete slab of the structure and thus it is fully noiseless system.
Uponor TABS Contec is designed to handle the basic cooling or heating loads of the buildings, in order to maintain a constantly comfortable indoor climate – independently of summer or winter time. Uponor Contect uses the ceiling surfaces for heat transfer, but also utilizes the storage capacity of the concrete core ceiling.

In summer time during night-time the ceiling will be re-cooled and can then absorb warmth from the building during day time – keeping a constant and productive working environment in office buildings. The system requires only low energy consumption due to the mean operating temperature of the water (18-28°C). This allows the energy-efficient use of renewable energy sources. This results in significantly reduced operating and maintenance costs. This solution creates a significantly improved indoor environment. Occupants in commercial and office buildings will benefit for their personal health and work productivity.

“Uponor TABS Contec uses the concrete mass of the building structure to store and exchange thermal energy to the neighbouring areas of the building”

Application areas:

  • Radiant heating and cooling in chilled ceilings for basic loads of commercial buildings
  • TABS has become a standard for new build offices for cooling application
  • Ideal in combination with mechanical and/or natural ventilation systems
  • Can be used with renewable energy sources
  • Cost efficient due to lower investment cost, maintenance cost and low life cycle cost


Main benefits:

  • Uponor Contec and Contec ON is integrated into the building structure and activates the thermal mass of the building for heating and cooling
  • Supports to the sustainability certificates for buildings, e.g. LEED, BREEAM and DGNB
  • TABS is silent in operation
  • Low investment and energy/efficient operation
  • Optimized utilisation of renewable energy sources
  • No restrictions in room design
  • Reliable and proven Uponor system has been installed in more than 1,000 buildings since 1997
  • Almost maintenance free system


Specifications for different Uponor TABS systems


Uponor Contec in a nutshell

  • High thermal comfort all year round at low investment and operating costs
  • Optimal use of renewable energy sources
  • Prefabricated modules with 20mm PE-Xa pipe assembled to reinforcement steel-mesh
  • Can be used for wall and ceiling installation
  • Uponor Contec thermal socket T2 for options to increase cooling output by the connection of additional suspended elements such as cooling sails
  • Uponor design service and BIM models available
Contec ON

Uponor Contec ON in a nutshell

  • Optimal for the compensation of peak loads and for the temperature control of individual rooms or zones
  • Short response times and good controllability
  • Modules for fast construction progress and prefab for use with 14mm PE-Xa pipe
  • Uponor Contec thermal socket T2 for options to increase cooling output by the connection of additional suspended elements such as cooling sails
  • Uponor design service and BIM models available



Contec thermal socket
Uponor Tabs thermal socket

Uponor Contect thermal socket as supplement to Contec and Contec ON

  • Contec thermal socket T2 for planning flexibility in the event of subsequent change of room use
  • Subsequent connection and commissioning of  ceiling sails possible without draining the system


Uponor Tabs thermal socket schematic view

Schematic view:

  1. Thermal socket T2 with Q&E and Push connections
  2. Uponor Contec
  3. Heating and cooling ceiling panel

Look up or download brochures for TABS Thermally activated building systems


Uponor Contec

Sales folder

PDF 10.20MB

Uponor Contec

Technical information

PDF 937.81kB

Uponor Contec

Product Information

PDF 123.02kB

Uponor Contec compendium

Product information and hand book

PDF 7.43MB

Uponor Contec: why select TABS

Sales information

PDF 1.43MB

Uponor life cycle cost comparison TABS versus other HVAC systems

Sales information

PDF 1.69MB

Uponor Contec design basics

Technical information for design planning

PDF 1.12MB

Uponor Contec construction methods

Technical information for planning

PDF 1.36MB

Uponor Contec tender texts

Technical information for planning - tender texts

PDF 567.08kB