Field Sound Insulation Evaluation for Two Auxiliary Walls.
Forest Service research paper,
FOREST PRODUCTS LAB MADISON WIS
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Adequate party wall design for multifamily dwellings usually requires an STC or 45. A standard stud wall consisting of a single layer of 12- or 58-inch gypsum board directly attached to each side of the studs will give an STC 32 to 37. Where such a wall exists, it can be upgraded by building a second or auxiliary wall next to it. Two auxiliary wall designs have been field tested, one of which can potentially upgrade a standard stud wall FSTC by 15 points. The other can potentially improve a standard stud wall by 7 points. Whether the full potential of the auxiliary walls is realized depends on several building characteristics, of which flanking is one of the most difficult to evaluate. This study is unique in that it not only provides field data for two specific auxiliary wall constructions but also gives a coherent analysis of both test partition and field test related factors that affect the actual field performance.
- Construction Equipment, Materials and Supplies
- Structural Engineering and Building Technology