How TermoDeck® Works

 The TermoDeck® system is different from conventional technologies because it is integrated with the heavy structure of a building. The last part of the ductwork system for the supply air consists of hollow core concrete slabs instead of traditional steel ducts.

TermoDeck® uses the thermal storage capacity of the building´s structural mass to regulate the internal temperatures. The effectiveness of the building's thermal mass is enhanced by passing supply air through the slab before it enters the room. The slabs work as heat exchangers between the supply air and the rooms.

The supply air passes through the hollow cores before entering the room as in the picture to the right.

The floor/ceiling slabs serve many purposes: Besides from being the structural floor it conveys fresh air into the building and it serves also as an energy store.



The picture shows how the slabs are incorporated into the building and how the main supply duct would normally be situated in the corridor. No ducts and therefore no false ceilings are required in individual rooms. This allows total freedom for the interior designer to locate, or re-locate in the future, the internal wall partitions.






Installation of Hollow Core Slabs

Hollow core slabs are quick and easy to install using mobile cranes or typical on-site tower cranes.

The erection time for a pre-fabricated building compared to a conventional cast in situ concrete building can be reduced by up to 30%.

Factory produced hollow core slabs enable installation to take place during all weather








TermoDeck® Systems

TermoDeck differs from other energy saving systems because the overall construction cost is not higher than conventional buildings as no extra equipment is added.


Since 1978 over 380 buildings have been constructed incorporating TermoDeck®, mainly in Scandinavia, Northern Europe, United Kingdom, the Middle East and North America.


TermoDeck is proven in all types of climatic conditions around the world and is intended for new buildings. See our answers to some frequently asked questions.


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