If you are building or extending a home or planning a renovation, think carefully about noise control. Gyprock has designed wall and ceiling products and systems that allow you to control noise transfer within your home and block unwanted noise from outside.
With some basic understanding of building acoustics and careful consideration of the room use and layout of your home or extension, you can quiet zones where you need them and keep noise where it belongs.
Unwanted noise can be an issue in any room in a home but these are the more typical situations that need to be considered:
- Homes under flight paths or near busy roads
- Between floors of multi-storey homes
- Home theatres and entertainment rooms
- Other special purpose rooms with high noise levels
- Rooms adjoining kitchens, laundries & garages
- Large open plan areas
- Rooms with a high level of hard floor coverings
Gyprock Acoustic Plasterboard
Standard Gyprock Plasterboard is the recommended internal lining for residential homes. Our range of residential specialty boards that offer increased acoustic performance are:
Soundchek is a high density recessed edge plasterboard that is available as a 10mm plasterboard for standard residential construction and 13mm for acoustic rated commercial applications and high performance residential requirements.
Superchek is part of Gyprock's Residential Specialty Options range. It is a premium, high recycled content 10mm plasterboard manufactured with a denser core and heavy duty facing material. Superchek has excellent acoustic insulation properties, higher levels of impact and scuff resistance and superior environmental credentials.
Gyprock Perforated Plasterboard
Gyprock Perforated Plasterboard can provide excellent acoustic control with a room, minimising noise reverberation and echo - ideal for home theatres and rooms requiring enhanced acoustic control.
Understanding Building Acoustics
Controlling noise in a home is important for a comfortable living environment. There are different types of noise issues that need to be considered and there are different Gyprock solutions available to help.
Sound waves can transfer from one side of a structure through to the other side. Unwanted noise can enter your home through your walls and roof and transfer through internal walls between rooms.
This can be airborne noise such as voices, music and machine noise or impact noise such as footsteps and cupboard doors.
Loud, low frequency noise sources such as truck engines and home theatre systems have a higher degree of transfer through solid structures.
Flanking sound transmission is the transfer of noise indirectly around structures. The perimeter junctions of walls, floors and ceilings can cause flanking paths.
Ceiling vents, downlights and wall penetrations such as power points can also be examples of where flanking sound transmission can be an issue.
Sound within a room can also be an issue, particularly in sparsely furnished rooms or rooms with hard surface floors where noise can bounce around freely.
This is particularly a problem with higher frequencies and speech which can be the most disturbing as it is very difficult to ‘tune out’.
Take Control of Noise
Noise control is achieved with Gyprock wall and ceiling products and systems that combine physical mass to reflect sound and sound absorption to ‘capture’ sound and limit noise transfer and reverberation.
Noise transfer through walls can be reduced and even eliminated by using a combination of density in the plasterboard lining and bulk insulation in the wall cavity for sound absorption.
Gyprock has developed a range of wall and ceiling systems using high density plasterboard in single and multiple layers, with high acoustic bulk insulation recommendations.
Below are details of the two most popular Gyprock acoustic wall systems and the acoustic improvement that they offer.
Typical Noise Reduction
Level 1 Acoustic Wall
An internal wall with a single layer of plasterboard each side and insulation in the cavity.
Level 2 Acoustic Wall
An internal wall with a double layer of plasterboard, mounted on a discontinuous framing system, with insulation in the cavity.
The Level 2 system above uses discontinuous construction. This is where the wall and ceiling linings are mounted to a furring channel frame that is attached to the home’s framing with Gyprock Resilient Mounts that effectively isolate it from any transfer of impact borne noise.
Information on the installation of Resilient Mount system can be found in the Gyprock Residential Installation Guide.
Acoustic Floor/Ceiling System
The Gyprock Sound Containment brochure has more details about internal noise control with recommendations across a variety of acoustic requirements.
Extreme Soundproofing Requirements
There can be some situations in homes where very high levels of sound containment and soundproofing are required:
- Drums or amplified musical instruments
- Home theatres with powerful sub-woofers
For these rooms, discontinuous construction including Resilient Mount frames and air cavities as well as multiple layers of high density plasterboard with bulk insulation can be extremely effective. Attention needs to be paid to sealing all perimeters to stop flanking noise transmission. For openings like doors, side, top and base acoustic seals can also be effective.
It is important that fresh air circulation be maintained which may require an acoustically insulated mechanical air transfer unit.
In these situations, consider talking to an acoustic consultant.
Gyprock has developed a comprehensive system approach to controlling external noise with system elements based on a home’s ‘external envelope’ – the walls, roof, windows and doors that are potential sources of unwanted noise transfer.
These systems are fully detailed in the Sound Control External Noise Systems design guide with solutions for a range of different desired sound levels across a number of noise situations:
- Street traffic noise
- Neighbourhood noise
- Industrial noise
- Motorway noise
- Rail traffic noise
- Aircraft noise
Also covered in this guide are additional sound control techniques such as acoustic door seals, acoustic windows, ceiling lights and roof tile choice.