Hospital Ward Acoustic Design in France — NRA 2000 Requirements
Patient wards, recovery rooms, consultation rooms. Typical volume: 100-500 m³.
What NRA 2000 Requires for a Hospital Ward in France
Regulation: NRA + HQE Santé
RT60 target: ≤ 0.8s
Background noise limit: ≤ 40 dBA
Local note: French hospitals must meet NRA plus HQE Santé acoustic criteria.
How to Calculate NRA 2000 Compliance for a Hospital Ward in France
- 1
Identify the applicable France standard and target
Look up NRA 2000 for hospital ward spaces in France. The RT60 target is ≤ 0.8s. NRA + HQE Santé.
- 2
Measure or model the room geometry
Record the length, width, and height of the room to calculate the volume. A typical hospital ward has a volume of 100-500 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 NRA 2000 and specify treatment
If the calculated RT60 exceeds the target of ≤ 0.8s, specify additional absorption. Typical treatment cost in France is €22,000–€36,000 per 100m².
Cost of Compliance in France
Treatment Cost Range
€22,000–€36,000 per 100m²
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 NRA 2000 require for a hospital ward in France?
NRA 2000 requires a reverberation time of ≤ 0.8s for hospital ward spaces in France. NRA + HQE Santé. Measurement should be performed per ISO 3382-2 methodology.
What is the background noise limit for a hospital ward in France?
The background noise limit is ≤ 40 dBA under NRA 2000. This typically refers to HVAC and building services noise measured with the room unoccupied.
How much does acoustic treatment cost for a hospital ward in France?
Typical acoustic treatment for a hospital ward in France costs €22,000–€36,000 per 100m². Costs vary based on finish quality, room size, and existing conditions.
Calculate NRA 2000 Compliance for Your Hospital Ward in France
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