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Lightweight Calcium Silicate Ceilings

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Lightweight calcium silicate ceilings are a certified product for Green Buildings. Unlike conventional materials, only calcium silicate is inherently 100% RH Resistant and Non combustible, ensuring durability and safety.



Aerolite ceilings are available in a pleasing range of surface textures and design options to meet the most demanding and creative requirements of today’s interiors. The design range is available in a wide range of geometric patterns with subtle relief and presents a wealth of exciting possibilities.

Humidity and Water resistance

The tiles are not affected by moisture, water and extreme of temperatures. They do not soften and sag even in high humidity environments. The ceilings can be used under all weather conditions; there is no need to control the temperature variations or humidity level inside the room.

Fire resistance

Calcium silicate ceilings are non combustible as per BS 476 Part 4. “Aerolite” is rated class I for spread of flame as per BS 476 Part 7 and class ‘O’ for fire propagation as per BS 476 Part 6. The ceilings offer fire protection to the building structures, thus remain for longer periods during accidental fire and meet the time rating required by building regulations. This allows time for escape and ensures comparative safety to fire fighters.

Thermal Insulation

Calcium silicate ceilings have good thermal insulation properties. They are tested and certified as per – BS4370 – Part II Thermal Conductivity 0.043/W/M0K. This helps to maintain room comfort and saves heating and cooling expenses.


Lightweight calcium silicate is a sound absorbing material that neither transmits nor augments sound. Thus the material is 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 and noise reduction coefficient (NRC) is the average of the absorption at 250, 500, 1000 and 2000 HZ. 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 to ensure that the correct balance between absorption and reflection is achieved. Again, with 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 sound absorption in a room can be as bad as not enough. Lastly, 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.


Calcium Silicate ceilings have high flexural strength as a result of their composition and manufacturing process. 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 demount ability as per service requirements.

Light Reflectance

The excellent light reflectance of the ceilings helps minimise lighting operating expenses besides ensuring maximum effectiveness of indirect lighting. (Tested and certified as per NPL Standards > 85%)

Environment Friendly

Aerolite is an inorganic material made out of lime and silica, reacted to produce hydrated calcium silicate with reinforcing fibers & natural fillers. It is free from chemicals like formdehyde, Neocide and any other harm full materials.

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