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Guide for Sound Insulation in Wood Frame Construction Part 2

Cầu truyền tải được âm thanh truyền tải giữa hai phòng bởi các đường dẫn khác hơn là trực tiếp thông qua các bức tường trên danh nghĩa được tách, hoặc lắp ráp sàn. | Page 11 of 103 Step 2a - Horizontally separated rooms The dominant flanking path for this room pair is from the floor in one room to the floor in the other other paths floor-wall and wall-floor are relatively unimportant except when a floor topping is applied. Particular attention should be paid to floor and wall details that will affect transmission from one floor to the other. The table indicates that - with or without a topping - the preferred joist orientation is parallel to the flanking junction when the partition wall is single stud construction. However if the partition wall is double stud construction the preferred joist orientation is perpendicular if there is no topping. There are no data to indicate the trend when the partition wall is double stud and there is a topping . Horizontally Separated Rooms Flanking paths _ via other surfaces Floor Element and Choices Wall double s Single stud Type tud best 2 Double Stud Joist Subfloor Topping Orientation Parallel better than Perpendicular Perpendicular better than Parallel Continuity Avoid3 Avoid Wood-1 vs Lumber Minimal difference Minimal difference Continuity Minimal difference Discontinuous much better OSB vs plywood Minimal difference Minimal difference OSB overlay Improvement Improvement Bonded concrete Improves more Improves more Floating concrete Improves most Improves most It is recognised that the preferred joist orientation cannot be used at the junction with all noise sensitive spaces so the preferred joist orientation should be reserved for the junction between those of greatest concern. 2 When the rooms are horizontally separated by a partition wall there is less flanking involving the subfloor when the wall is of double stud construction 3 Support joists on one side of the wall using joist hangers. IRC RR-219 Guide for Sound Insulation in Wood Frame Construction March 2006 Page 12 of 103 Step 2b - Vertically separated rooms The dominant flanking path is from the floor in the room above to the .