Classroom Acoustic Design in Australia — AS/NZS 2107:2016 Requirements
Primary and secondary school classrooms, lecture rooms. Typical volume: 150-300 m³.
What AS/NZS 2107:2016 Requires for a Classroom in Australia
Regulation: AS/NZS 2107:2016 — referenced by NCC Section F5
RT60 target: ≤ 0.6s
Background noise limit: 35–40 dBA
Local note: NCC 2022 Section F5 mandates acoustic performance for Class 9b buildings.
How to Calculate AS/NZS 2107:2016 Compliance for a Classroom in Australia
- 1
Identify the applicable Australia standard and target
Look up AS/NZS 2107:2016 for classroom spaces in Australia. The RT60 target is ≤ 0.6s. AS/NZS 2107:2016 — referenced by NCC Section F5.
- 2
Measure or model the room geometry
Record the length, width, and height of the room to calculate the volume. A typical classroom has a volume of 150-300 m³.
- 3
List all surfaces and their absorption coefficients
For each surface (floor, ceiling, walls, windows, doors), find the absorption coefficient at each octave band frequency (125 Hz to 4 kHz) from ISO 354 test data or a materials database.
- 4
Calculate total absorption and apply the Sabine or Eyring equation
Sum all surface absorption values: A = sum of (alpha x area). Then apply T60 = 0.161 x V / A (Sabine) or T60 = -0.161 x V / (S x ln(1 - alpha_avg)) (Eyring). Use Eyring when average alpha exceeds 0.20.
- 5
Compare result against AS/NZS 2107:2016 and specify treatment
If the calculated RT60 exceeds the target of ≤ 0.6s, specify additional absorption. Typical treatment cost in Australia is AUD 24,000–AUD 34,000.
Cost of Compliance in Australia
Treatment Cost Range
AUD 24,000–AUD 34,000
Currency: AUD
What Affects Cost
- • Room volume and surface area
- • Target standard strictness
- • Existing acoustic conditions
- • Finish and material quality
How AS/NZS 2107:2016 Differs from Other Standards for Classroom in Australia
| Requirement | AS/NZS 2107:2016 | WELL v2 Feature 74 |
|---|---|---|
| RT60 Target | ≤ 0.6s | ≤ 0.6s |
| Background Noise | 35–40 dBA | ≤ 35 dBA |
| STI | Not specified | ≥ 0.60 |
| Cost Range | AUD 24,000–AUD 34,000 | AUD 28,000–AUD 40,000 |
Frequently Asked Questions
What RT60 does AS/NZS 2107:2016 require for a classroom in Australia?
AS/NZS 2107:2016 requires a reverberation time of ≤ 0.6s for classroom spaces in Australia. AS/NZS 2107:2016 — referenced by NCC Section F5. Measurement should be performed per ISO 3382-2 methodology.
What is the background noise limit for a classroom in Australia?
The background noise limit is 35–40 dBA under AS/NZS 2107:2016. This typically refers to HVAC and building services noise measured with the room unoccupied.
How much does acoustic treatment cost for a classroom in Australia?
Typical acoustic treatment for a classroom in Australia costs AUD 24,000–AUD 34,000. Costs vary based on finish quality, room size, and existing conditions.
Calculate AS/NZS 2107:2016 Compliance for Your Classroom in Australia
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