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Poor inflammable sound absorption structure for wooden frame housing of habitation, has grooves including distal faces, where sum of areas of faces is less than one-third of total area of developed surface forming lower side of structure
Poor inflammable sound absorption structure for wooden frame housing of habitation, has grooves including distal faces, where sum of areas of faces is less than one-third of total area of developed surface forming lower side of structure
The structure (11) has a set of wooden boards (12) regularly spaced with each other and oriented parallel with respect to each other. The boards cooperate with a lower face of sound-absorbing panel so as to define a set of grooves (15) at level of lower side (14). Each of the grooves includes a distal face (16) opposite to a bottom face (17). Sum of areas of the distal faces of the structure is less than one-third of total area of developed surface forming the lower side of the structure. The boards have same thickness (e) and width (l).
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