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At Rondo, we believe good acoustic control begins with good acoustic design. Since Rondo GIB QUIET STUD® Acoustic Stud System was introduced in 2004 it has quickly demonstrated to be an economic and practical way of achieving the acoustical requirements of the National Construction Code (NCC) and New Zealand Building Code (NZBC).

Subject to rigorous acoustic testing at both CSIRO Acoustic Laboratory in Melbourne and Auckland University Acoustic Laboratory, QUIET STUD® has proven itself beyond a doubt.

Here’s our Top 3:

1. Less Noise - its unique design, combined with appropriate lining boards, forms an effective buffer against unwanted noise to offer a cost-effective acoustic wall solution
2. Less Installation Costs – as the installation method is practically the same as drywall construction, it is fast to install, with fewer products, which results in lower installation costs as well as virtually fail-safe acoustic wall-system
3. More Floor Space – its smaller footprint means it leaves more usable floor space

THE USE OF QUIET STUD IN MAJOR CONSTRUCTION PROJECTS

The Rondo GIB QUIET STUD® system has been used in a range of projects, including apartments, hotel refurbishments, schools, universities, hospitals and offices. At the District Law Court in Western Australia, Rondo GIB QUIET STUD® was used as an effective buffer against unwanted noise between court rooms and at the recent Clyde Quay Wharf Apartments in New Zealand; between the intra-tenancy walls.

IMPORTANT DETAILS ABOUT CONTINUOUS CONSTRUCTION

QUIET STUD® is considered a continuous construction and therefore may not generally be acceptable for walls between opposing sole occupancy units.

What is continuous construction?

The NCC defines discontinuous construction as wall elements that have a 20mm cavity between two separate leaves i.e. a double steel stud wall or similar with a 20mm cavity between the leaves.

In other words, QUIET STUD® is only allowed in sole occupancy units (SOU’s).

The NCC deals with sound insulation between dwellings and nominates situations where discontinuous construction is required. Despite this, QUIET STUD® has some real benefits for both the eventual occupier and the Builder of SOU dwellings.

QUIET STUD PERFORMANCE COMPARISION

To fully understand how innovative the Rondo GIB QUIET STUD® performs as an acoustic solution, comparison tests were conducted using the exact same configuration of plasterboard lining, insulation, sealants and installation details on both a standard Rondo 92mm x 0.55bmt lipped C Steel Stud and the
Rondo 92mm x 0.55bmt QUIET STUD® to compare performance. As can be seen from the results shown in Table 3, the Rondo GIB QUIET STUD® had a significant increase in performance both in the Rw value (5dB better performance) and the combined Rw + Ctr value (8dB better performance) when compared to the standard Rondo lipped C Steel Stud section. Even better performance can be expected when compared to timber stud framing of equal width. Read more...

P.S. As well as the 0.55 BMT QUIET STUD®, Rondo has now added the new medium gauge 0.75BMT to their QUIET STUD® range. The new size is thicker to allow for higher walls and will be available in 3000mm & 4800mm lengths.

What is continuous construction?

The NCC defines discontinuous construction as wall elements that have a 20mm cavity between two separate leaves i.e. a double steel stud wall or similar with a 20mm cavity between the leaves.

In other words, QUIET STUD® is only allowed in sole occupancy units (SOU’s).

The NCC deals with sound insulation between dwellings and nominates situations where discontinuous construction is required. Despite this, QUIET STUD® has some real benefits for both the eventual occupier and the Builder of SOU dwellings.

QUIET STUD PERFORMANCE COMPARISION

To fully understand how innovative the Rondo QUIET STUD® performs as an acoustic solution, comparison tests were conducted using the exact same configuration of plasterboard lining, insulation, sealants and installation details on both a standard Rondo 92mm x 0.55bmt lipped C Steel Stud and the
Rondo 92mm x 0.55bmt QUIET STUD® to compare performance. As can be seen from the results shown in Table 3, the Rondo QUIET STUD® had a significant increase in performance both in the Rw value (5dB better performance) and the combined Rw + Ctr value (8dB better performance) when compared to the standard Rondo lipped C Steel Stud section. Even better performance can be expected when compared to timber stud framing of equal width. Read more...

P.S. As well as the 0.55 BMT QUIET STUD®, Rondo has now added the new medium gauge 0.75BMT to their QUIET STUD® range. The new size is thicker to allow for higher walls and will be available in 3000mm & 4800mm lengths.

Notes to Table:                                                                                 

1. Deflection limited to H / 240 or H / 360 as applicable, to a maximum of 30mm at 0.25kPa, in accordance with the

BCA Specification C1.8.                                                                               

2. Maximum wall heights refer to the structural capacity only, and may be reduced for fire rated applications.

 Refer to your plasterboard manufacturer for details.                                   

3. Maximum heights should be referred back to Rondo when additional load is to be placed on the wall.

The above tables only include self-weight plus linings, additional loads requires separate consideration by Rondo.

4. Lateral loadings: a. Pultimate = 0.375kPa
5. Pservice = 0.25kPa
6. The above details are not suitable for external applications.
7. Walls analysed in accordance with AS/NZS4600:2005.
8. Reducing the stud centres, and changing the gauge of the Quietstud may affect the acoustic rating of the wall.

 Refer to your plasterboard manufacturer for details.                                   

8. BMT = Base Metal Thickness.
9. Minimum 0.70bmt Deflection Head Track.
10. Base track gauge may be the same as the wall stud.
11. Noggings are not required in the above walls provided the walls are lined both sides full height.