Climate Ceilings Encyclopedia

Knowledge Base

Here you will find a comprehensive glossary of the most important terms related to cooling ceilings as well as selected technical articles.

Glossary

The most important technical terms simply explained.

Radiant Exchange

The basic principle of the cooling ceiling. Instead of cold air, the ceiling surface is cooled. Warm surfaces in the room (people, equipment) transfer their heat via infrared radiation to the cool ceiling. This heat exchange happens completely silently and without air movement (drafts).

Dew Point

The temperature at which air humidity condenses on a surface. Modern cooling ceiling systems are controlled so that the surface temperature is always safely above the dew point to avoid condensation (droplet formation). Dew point sensors are crucial for this.

Silent Cooling

A main advantage of cooling ceilings. Since no fans or air nozzles are needed to move cold air, the system operates completely silently. This leads to a very high room comfort and better concentration.

Thermal Comfort

Describes the subjective well-being of a person in a room. Cooling ceilings ensure high thermal comfort as they provide uniform room temperatures without unpleasant drafts or large temperature differences.

Cooling/Heating Capacity (W/m²)

Indicates how many watts of cooling or heating energy per square meter of active ceiling area can be emitted or absorbed. The capacity depends on the water temperature, the pipe spacing, and the ceiling type.

Activation

Refers to the proportion of the ceiling area equipped with water-bearing registers for cooling or heating. Higher activation means more capacity. A part of the ceiling is often kept free for installations (lights, etc.).

Temperature Spread (ΔT)

The temperature difference between the flow (water flowing into the ceiling) and the return (water flowing out of the ceiling). A higher spread means more energy was exchanged.

Ceiling Sails

Individual ceiling elements suspended freely in the room, used for cooling, heating, and improving room acoustics. They are ideal for retrofitting and targeted air conditioning of specific areas. Learn more about how you can heat with a ceiling sail or integrate acoustically effective lighting.

Gypsum Board Cooling Ceiling

A full-surface ceiling system in which the cooling registers are integrated into gypsum board panels. After installation, the joints are filled, creating a seamless, homogeneous ceiling surface.

Articles

Further Information