Hospital Ward Acoustic Design in United States — WELL v2 Feature 74 Requirements
Patient wards, recovery rooms, consultation rooms. Typical volume: 100-500 m³.
What WELL v2 Feature 74 Requires for a Hospital Ward in United States
Regulation: WELL v2 for Healthcare — FGI Guidelines
RT60 target: ≤ 0.6s
Background noise limit: ≤ 35 dBA
STI requirement: ≥ 0.60
Local note: FGI 2022 Guidelines require acoustic analysis for all US healthcare over 5,000 sq ft.
How to Calculate WELL v2 Feature 74 Compliance for a Hospital Ward in United States
- 1
Identify the applicable United States standard and target
Look up WELL v2 Feature 74 for hospital ward spaces in United States. The RT60 target is ≤ 0.6s. WELL v2 for Healthcare — FGI Guidelines.
- 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 WELL v2 Feature 74 and specify treatment
If the calculated RT60 exceeds the target of ≤ 0.6s, specify additional absorption. Typical treatment cost in United States is $28,000–$45,000 per 100m².
Cost of Compliance in United States
Treatment Cost Range
$28,000–$45,000 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 WELL v2 Feature 74 require for a hospital ward in United States?
WELL v2 Feature 74 requires a reverberation time of ≤ 0.6s for hospital ward spaces in United States. WELL v2 for Healthcare — FGI Guidelines. Measurement should be performed per ISO 3382-2 methodology.
What is the background noise limit for a hospital ward in United States?
The background noise limit is ≤ 35 dBA under WELL v2 Feature 74. 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 United States?
Typical acoustic treatment for a hospital ward in United States costs $28,000–$45,000 per 100m². Costs vary based on finish quality, room size, and existing conditions.
Calculate WELL v2 Feature 74 Compliance for Your Hospital Ward in United States
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