Guide for Sound Insulation in wood frame construction

[E123]

Guide for Sound Insulation in wood frame construction

This Guide addresses flanking transmission of sound through wood framed construction. Continuous structural elements and connections at the junctions of partition walls and floors provide transmission paths that by-pass the separating partition between two noise-sensitive spaces. Flanking transmission is sound transmission between two rooms by paths other than directly through the nominally separating wall or floor assembly.

Flanking exists in all buildings and its importance in determining the apparent sound insulation (that perceived by the occupants) depends on of the construction details of the walls, the floors and their junctions.

This Guide is the derivative of four industry-sponsored research projects conducted at IRC/NRC. The focus and construction details were decided by a Steering Committee of technical representatives from each of the supporting partners. Partners included Canada Mortgage and Housing Corporation, Forintek Canada Corporation, Marriott International, National Research Council Canada, Owens Corning, Trus Joist, and USG.

This Guide supersedes the version published in 2005. This version includes estimates of the flanking due to directly attached gypsum board on ceilings, corridor walls, and exterior walls. (The first version assumed that these surfaces were mounted on resilient channels, and thus had negligible effect.)

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