Insulations

Insulations

Insulation is a building practice employed to control sound (noise) movement andtemperature changes in a building using light mineral fibres like Rock wool, Glass wool, Foam Spray, Styro Foam or Poly foam, Compacted wood dust etc. Building wall, roofs, partitions and floors are insulated to serve special purpose in buildings.

Buildings where absolute quietness is needed are insulated from noise eg. Churches, Lecture Halls, Disco Halls, Musical and Video studio, Library, Auditorium etc. It is always a disaster when building listed above are not given adequate protection from sound and noise INVASION.

Latest technology recommends the use of foam spray, poly foam, styro foam or fibre glass wool for roofs. The aim is to prevent externally generated noise like rainfall, traffic and environmental noise.

Double Cavity walls are designed to take care of external transmitted noise while internal cladding with grooved acoustic wood, wood wool, perforated wood glass mineral wool, fabric acoustic panels, perforated gypsum and wood PVC composite (WPC) panels with acoustic fleece are to diffuse the noise.

Partitions:
Partitions can be dry walls or glass partition. For drywalls, cavity wall are stuffed with rock wool or glass fibre wool to control noise and sound transmitted from part of the building to the other. Drywall can also be perforated wood, WPC or wood wool for effective sound absorption. Glass wall can be thick single or double glazed. Single varies fro 4-19 mm thick while double glazed glass are used at door and window openings to check noise entry.

Floor:
In a high rice building where adjacent floors are used for office and disco dancing purposes, poly foam (50-100mm) thick are used to shield noise and sound transmission between the floors. Thick carpet rugs are used to silence the shuffling

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