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Home >
Boral Plasterboard >
Acoustic Wall Systems
ACOUSTIC WALL SYSTEMS
Install, Maintain :
D-Stud |
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D-Stud
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Low Rise D-Stud Wall System.
Assembly detail. |
Boral Plasterboard’s patented D-Stud Wall System consists of two wall types:
The Low Rise D-Stud Wall System uses rollformed top-hat sections as studs and is particularly suited to wall heights up to 6.6 metres, typically used in multi-residential construction.
The High Wall System comprises two Zed Purlins laminated together to form a hatshape stud section and is suited to applications up to 13.4 metres, particularly cinema walls where excellent acoustic performance is also required.
A D-Clip is used when installing the top-hat D-Studs to the top track from floor level. Single or multiple layers of Boral Plasterboard sheets are then screw fixed to steel framing with bugle headed, drill point gypsum screws.
Acoustically the D-Stud System complies with the impact noise isolation requirements of the Building Code of Australia and using the appropriate cavity absorber can meet a range of acoustic performance standards, including STC55 sound transmission loss in low rise walls and STC72 in high wall systems. The D-Stud System also meets the acoustic criteria for high cinema walls recommended by Watson Moss Growcott (WMG) acoustic consultants in their “Cinema Design/Construction, Noise Control Requirements” Report.
Lightweight and easily erected, the D-Stud System allows extended stud spacing, optional use of top and bottom tracks and the absence of nogging and strapping. With simple connections and fewer materials required, the D-Stud System is more economical in installation time and cost than alternative drywall systems. Due to the use of the ‘top-hat’ type section, the D-Stud System is more stable than a C section stud lined on one side. It can accommodate additional wall heights and pressures without the need for bridging, noggings or additional structural columns or girt members. The D-Stud provides uncompromised acoustic performance due to the elimination of noise transmission through bridging.
Limitations
- Non-axial load bearing
- In general, stud spacing for low rise walls is 600mm and 1200mm for high walls, depending on board configuration.
- All maximum spans, limiting structural heights, limiting heights in fire and acoustic capacity tests have been performed using Boral Standard Core Plasterboard, Firestop or Wet Area Firestop constructed to standard or fire rated D-Stud wall details. Performance results cannot be assumed with the use of other materials.
Limiting heights
Limiting heights for non load-bearing Low Rise and High Wall D-Stud Systems (as detailed in the System Selector section of this manual) are the lesser of maximum fire heights and structural heights for a given wall configuration. These limiting heights meet the design criteria of structural testing for lightweight construction as detailed in Section C1.8 of the Building Code of Australia. Limiting heights in fire were derived from a full scale test conducted by CSIRO, Division of Building, Construction and Engineering. The maximum fire heights listed assume 50Pa pressure. Where greater pressures and fire loadings are likely, please consult Boral Plasterboard.
Limiting structural heights have been obtained by full scale tests at VIPAC laboratories in Melbourne and the NATA registered laboratories of Boral Plasterboard at Port Melbourne, and have been certified by Taylor Thomson Whitting Pty Ltd.The D-Stud System is able to achieve fire resistant ratings from 30 minutes to 2 hours.
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All products contained herein © Boral Plasterboard. Page layout © 1996-2008 Architecture Media (Selector) Pty Ltd.
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