Experimental approach on sound transmission loss of Cross Laminated Timber floors for building

摘要

Adequate levels of noise control in multi-family buildings are mandatory requirements of building codes in Canada, the United States, Europe, and most developed Asian countries. In many jurisdictions, these requirements are as strictly enforced as those for structural sufficiency and fire safety. Much effort has been spent on evaluation of sound transmission class (STC) and impact sound insulation class (IIC) of floor and wall assemblies and on studies of flanking transmission in multi-family dwellings in Canada. However, no work has been done until now in Canada on the acoustic performance of CLT systems in construction. This document focuses mainly on the development of CLT floor assemblies made of cross-laminated timber elements capable to perform well acoustically in residential, multi-residential and non residential buildings in Canada and in US. Existing generic floor assemblies used in Europe are presented in the document as well as examples of floor assemblies that could be used in the North American market.