• Renovation
    Renovation

Interior/ partial interior renovation works at the existing building would cause noise impact to the residents at neighbouring buildings or units. Concrete/ brickworks breaking and tiles/paint removal using handheld breakers are common noisy renovation works.  Sound power levels of traditional handheld breakers can generally reach 108 dB(A).  Use of some smaller mechanical equipment such as mini-breaker or innovative method such as high pressure water jet for tiles/ paint removal would generate less noise during renovation works.

Sound pressure level at 7 meters from equipment

 

Sound pressure levels of traditional and quieter equipment/ method for reference.

Noise reduction

 

Mini Air Hammer

 

Mini air hammer is a pneumatic tool, powered by a mini air compressor. It can be used for dismantling tiles. Mini air compressor provides compressed air to power the internal piston for the operation of mini air hammer. The sound pressure level at 1m is lower than 88dB(A). Compared to traditional hammer drills, it greatly reduces the transmission of structure-borne noise.

 

Courtesy of Gison Machinery Co. Ltd.