The influence of thermal insulation selection on a facade sound insulation property – theoretical case study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00332362" target="_blank" >RIV/68407700:21230/19:00332362 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The influence of thermal insulation selection on a facade sound insulation property – theoretical case study

Popis výsledku v původním jazyce

Impact of the external thermal insulation composite system (ETICS) on the sound reduction index improvement is widely discussed topic. ETICSs are already several years commonly used to reduce buildings thermal loses. However, its application can negatively influence facades sound insulation properties. In the high frequency range an additional thermal insulating layer improves the sound insulation property. However, in the low frequency range the sound insulation spectra rather often decrease. This decrease is caused by a mass - spring - mass resonance of the ETICS system. Location and the depth of resonance dip depend on the ETICS composition. Several prediction models and measurement-based case studies were published already. In this contribution, an analytical model is used to predict the sound reduction index, using a measured dynamic stiffness of the ETICS system. A number of different thermal insulating layers are analysed having similar thermal properties but different material dynamic stiffnesses and loss factors. The comparison of theoretically predicted sound insulation spectra and the impact of the dynamic stiffness measurement technique are presented.

Název v anglickém jazyce

The influence of thermal insulation selection on a facade sound insulation property – theoretical case study

Popis výsledku anglicky

Impact of the external thermal insulation composite system (ETICS) on the sound reduction index improvement is widely discussed topic. ETICSs are already several years commonly used to reduce buildings thermal loses. However, its application can negatively influence facades sound insulation properties. In the high frequency range an additional thermal insulating layer improves the sound insulation property. However, in the low frequency range the sound insulation spectra rather often decrease. This decrease is caused by a mass - spring - mass resonance of the ETICS system. Location and the depth of resonance dip depend on the ETICS composition. Several prediction models and measurement-based case studies were published already. In this contribution, an analytical model is used to predict the sound reduction index, using a measured dynamic stiffness of the ETICS system. A number of different thermal insulating layers are analysed having similar thermal properties but different material dynamic stiffnesses and loss factors. The comparison of theoretically predicted sound insulation spectra and the impact of the dynamic stiffness measurement technique are presented.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/EF16_027%2F0008465" target="_blank" >EF16_027/0008465: Mezinárodní mobility výzkumných pracovníků ČVUT</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

PROCEEDINGS INTERNOISE 2019

ISBN

978-84-87985-31-7

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

—

Název nakladatele

Internoise 2019

Místo vydání

—

Místo konání akce

Madrid

Datum konání akce

16. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—