Thermal Mass Cooling

Utilisation of a building’s thermal mass cooling potential can significantly reduce internal ambient temperatures. This natural process centres on using exposed concrete slabs to provide a cooling element. It is increasingly being adopted as a sustainable low energy solution and works by utilising the natural properties of concrete, which has a high specific heat capacity and conductivity.

Concrete acts as a thermal sponge, passively absorbing heat from the air during the day when the ambient temperature is higher, cooling and moderating the daytime peak temperatures.

This heat is then passively released from the concrete when the ambient air temperature is lower, generally at night time.

A number of studies have indicated that the amount of cooling available to the space in a naturally ventilated building with exposed thermal mass will be almost twice that of a simple low thermal mass building, with a cooling potential of up to 25 W/m² .

SAS Acoustic Ceiling Rafts, Acoustic BafflesWall Panelling and SAS Integrated Service Modules (ISM) all leave the concrete soffit open, enabling thermal mass cooling to take place. ISM, an alternative to traditional air conditioning methods, have the ability to supplement the passive cooling provided by thermal mass through the incorporation of passive or active Chilled Beam technology.