Efficiently involved
U4X Hybrid system

The U4X hybrid system is a multifunctional radiant ceiling system and is ideal for meeting the increasing demands of modern buildings. A special feature of the U4X is inclusion of the building mass through direct control of the concrete ceiling. This results in a mass storage capacity in addition to the usual water and air cooling capacity. This can significantly reduce operating costs and CO2 emissions.

Thanks to its closed room design, the U4X radiant ceiling module delivers good sound absorption values, particularly in the low frequency range.

The U4X radiant ceiling system is particularly suitable for offices, conference suites, hotels, schools and other commercial applications. It not only ensures comfort, but also promotes productivity and the wellbeing of employees and customers.

Thermal comfort according to EN ISO 7730
Building material class: A2-s1, d0, EN 13501-1
Very high heating & cooling capacity
Superior sound absorption values (class A)
Enhanced energy efficiency thanks to active building mass connection
Covers cooling requirements with freecooling 75 - 85 % of the time
Components can be integrated

Cooling capacity > 75 W/m² (8 K)
Heating capacity > 100 W/m² (15 K)
Sound absorption Class A
Carbon Footprint < 50 kg CO₂/m²

Basis for assessment

Cooling capacity

The cooling capacity corresponds to the amount of energy per second removed from the room via heat radiation and convection. It is determined in accredited climate laboratories in accordance with SN EN 14240.

For comparison: the heat emitted by a person in an office via radiation and convection is approx. 70 – 80 W; the heat emitted by a laptop is approx. 20 – 50 W.

Heating capacity

The heating capacity corresponds to the energy per second added to the room via heat radiation and convection. It is determined in accredited climate laboratories in accordance with SN EN 14037.

For comparison: The heat output of a person in an office via radiation and convection is approx. 70 – 80 W, whilst that of a laptop is approx. 20 – 50 W.

Sound absorption

As the largest unobstructed surface in a room, the ceiling is particularly well suited to sound absorption. The sound absorption class is determined in accordance with EN ISO 11654, based on measurements carried out in accordance with EN ISO 354 in accredited laboratories.

It serves as a parameter for acoustic designers to calculate the effect of a product on a room’s reverberation time.

Carbon footprint

The carbon footprint represents the total CO₂ emissions generated throughout a product’s life cycle (from manufacture through to operation and recycling/disposal).

It is calculated by independent institutes and summarised in an ‘Environmental Product Declaration’ (EPD). Barcol-Air is working specifically to reduce the proportion of high-emission materials such as aluminum and other metals.

By way of comparison: the production of 1 kg of aluminum releases approximately 16 kg of CO₂.