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 levels of traditional and quieter equipment/ method for reference.
Hand-held concrete crusher is used for concrete breaking and can be operated by one person. Less vibration and impulsive noise along the structure would be generated by hand-held concrete crusher than jackhammer. The sound pressure level at 7m from the working site is less than 70dB(A).
Courtesy of Modern Concrete Drill Cut Co., Ltd.
| Sound pressure level in dB(A) at 7m from equipment | 67-69dB(A) |
