Worship Space Acoustic Design in United Kingdom — ISO 3382 Requirements
Churches, mosques, synagogues, temples. Typical volume: 500-20,000 m³.
What ISO 3382 Requires for a Worship Space in United Kingdom
Regulation: No mandatory standard — CBC guidance
RT60 target: 1.5–2.5s (music) | 1.0–1.5s (speech)
Background noise limit: NR-25
STI requirement: ≥ 0.45
How to Calculate ISO 3382 Compliance for a Worship Space in United Kingdom
- 1
Identify the applicable United Kingdom standard and target
Look up ISO 3382 for worship space spaces in United Kingdom. The RT60 target is 1.5–2.5s (music) | 1.0–1.5s (speech). No mandatory standard — CBC guidance.
- 2
Measure or model the room geometry
Record the length, width, and height of the room to calculate the volume. A typical worship space has a volume of 500-20,000 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 ISO 3382 and specify treatment
If the calculated RT60 exceeds the target of 1.5–2.5s (music) | 1.0–1.5s (speech), specify additional absorption. Typical treatment cost in United Kingdom is £120–£280/m².
Cost of Compliance in United Kingdom
Treatment Cost Range
£120–£280/m²
Currency: £
What Affects Cost
- • Room volume and surface area
- • Target standard strictness
- • Existing acoustic conditions
- • Finish and material quality
Frequently Asked Questions
What RT60 does ISO 3382 require for a worship space in United Kingdom?
ISO 3382 requires a reverberation time of 1.5–2.5s (music) | 1.0–1.5s (speech) for worship space spaces in United Kingdom. No mandatory standard — CBC guidance. Measurement should be performed per ISO 3382-2 methodology.
What is the background noise limit for a worship space in United Kingdom?
The background noise limit is NR-25 under ISO 3382. This typically refers to HVAC and building services noise measured with the room unoccupied.
How much does acoustic treatment cost for a worship space in United Kingdom?
Typical acoustic treatment for a worship space in United Kingdom costs £120–£280/m². Costs vary based on finish quality, room size, and existing conditions.
Calculate ISO 3382 Compliance for Your Worship Space in United Kingdom
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