ACOUSTIC PROPERTIES OF A RENOVATED BUILDING

The article explores the effects of partitions, ceilings and facades on noise insulation in the renovated different buildings. The conducted experiments were aimed at analyzing partitions of 120 mm brick mounted gypsum panels while other walls were 520 mm thick and plastered on both sides. Under nat...

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Bibliographic Details
Published inScience future of Lithuania Vol. 2; no. 5; pp. 23 - 29
Main Authors Januševičius, Tomas, Butkus, Donatas
Format Journal Article
LanguageEnglish
Published Vilnius Vilnius Gediminas Technical University, Department of Construction Economics & Property 31.10.2010
Vilnius Gediminas Technical University
Subjects
Acoustics
building acoustics
Buildings
Insulation
law of mass
noise
Noise control
Renovation & restoration
sound insulation factor
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Summary:The article explores the effects of partitions, ceilings and facades on noise insulation in the renovated different buildings. The conducted experiments were aimed at analyzing partitions of 120 mm brick mounted gypsum panels while other walls were 520 mm thick and plastered on both sides. Under natural conditions, sound insulation factors of facades were measured and compared according to comfort classes. The obtained results revealed that thick brick walls of 520 mm insulated the sound of 58 decibels (dB) (class B). In contrast, 120 mm brick masonry partition reduced sound only to 48 dB which is class E and agrees with the lowest class of sound insulation. We also calculated the sound insulation factor applying three formulas considering the mass law of sound insulation and comparing it with other previous studies. The paper examines and discusses the findings of the performed calculations and measurements.
ISSN:2029-2341
2029-2252
DOI:10.3846/mla.2010.086