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Choosing The right material

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The choice of the ceiling system not only determines the interior aesthetics, but also improves the productivity of the occupants. Integration of innovative design with style, function and safety is possible when the material chosen is adaptive.

The appearance and design of the ceiling reflects on the entire facility. In a work environment, ceilings can vary in different parts of the same facility. A conference room would require ceilings with different acoustics and that of the common area with a different texture. Reflective lighting is another quality many facilities are seeking in their ceilings. Whether the ceiling tiles chosen meet the requirement of the facility, needs to be ascertained at the time of selecting the material. VOC component, mold & mildew resistance, colour, scoring, texture, shape… how the ceiling interacts with the heating, cooling and sprinkler systems too determine the choice.

Calcium silicate ceiling tiles are made from silica with lime and other natural fillers. The material can be easily worked and nailed. These tiles are durable, moisture resistant and withstand impact. They have dimensional stability and a good strength to weight ratio.

Aesthetics: Aerolite light weight calcium silicate ceilings are available in a pleasing range of surface textures and design options. The wide range of geometric patterns with subtle relief, presents a wealth of exciting possibilities, to create truly inspiring and impressive interiors.

Humidity and Water resistance: Aerolite light weight calcium silicate ceiling tiles are 100% RH resistant and not affected by moisture, water and extremes of temperature. The ceiling does not soften and sag in high humidity environments. These ceilings can be, installed and used under all weather conditions, including in non air-conditioned buildings. There is also no need to control the temperature variations or to maintain any specific temperature or humidity level in the room by using heaters, dehumidifiers, ventilators or air conditioners running throughout 24 hours. This enables power savings.

These ceilings do not physical disintegrate in the case of condensation from air-conditioning ducts or in case of any leakage of water from the main ceiling above the suspended ceiling, it can also safely used in industrial and semi exposed locations. Fire resistance: Aerolite is incombustible as per the BS476 Part-4. Aerolite Ceilings are rated class I for spread of flame as per BS 476 Part 7and class “0” for fire propagation as per BS 476 part 6. Building structures thus remain stable for longer periods during a fire and meet the time rating required by building regulations. This, in turn, allows time for escape and ensures comparative safety to fire fighters. Installers should always use recommended grid systems for installation of the ceiling.

Thermal insulation: Calcium silicate ceilings have outstanding thermal insulation properties which are superior to that of any other ceiling material. This helps to maintain room comfort at all times and saves power used for running the heating and cooling equipment.

Acoustics: Lightweight calcium silicate is a sound absorbing material. Aerolite calcium silicate ceilings are perfect for adjusting the acoustics in areas covered by the ceiling by using tiles with perforations and fissures or in combination with plain or design tiles. It is essential to define the acoustics requirement early in the design stage. The following should be considered i.e., the applied building materials, surfaces within the room, volume of the room, soft furnishing, and finally the proposed use of the room.

There are two aspects of acoustics: The sound absorption performance of the tile which deals with the reduction of sound emanating from within the room, and measured as the noise reduction coefficient (NRC) (from 0.1 to 1), and sound attenuation (STA) which deals with the transmission of sound between adjacent areas and measured in decibels (db).

Sound absorption coefficients are measured at various sound frequencies from 125 to 4000 HZ. The noise reduction coefficient (NRC) is the average of the absorption at 250, 500, 1000 and 2000 HZ. Three factors should be kept in mind while deciding room acoustics.

  1. The ceiling is only one of the surfaces within a room besides the floor and four walls and it is important to take into consideration all the surfaces within a room and the shape of the room to ensure that the correct balance between absorption and reflection is achieved.
  2. The increased use of soft furnishings, ceilings with only moderate sound absorption may be required, if a lifeless environment is to be avoided. In short, too much absorption in a room can be as bad as not enough.
  3. The acoustic characteristics of the ceiling should be selected based on the frequencies of sound expected to be encountered in the room which, in turn, depend on the proposed use of the room.

Durability: Aerolite ceilings have patented densified edges to give high edge strength which minimizes damage in handling, transport, storage and installation of the tiles, besides facilitating demountability as per service requirements.

Submitted by
Aerolite Ceiling Systems
A division of Andhra Polymers Ltd

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