Meeting Room Acoustic Design in United States — WELL v2 Feature 74 Requirements
Conference rooms, boardrooms, video conferencing spaces. Typical volume: 30-150 m³.
What WELL v2 Feature 74 Requires for a Meeting Room in United States
Regulation: WELL v2 Feature 74 Part 1
RT60 target: ≤ 0.6s
Background noise limit: ≤ 35 dBA
STI requirement: ≥ 0.60
How to Calculate WELL v2 Feature 74 Compliance for a Meeting Room in United States
- 1
Identify the applicable United States standard and target
Look up WELL v2 Feature 74 for meeting room spaces in United States. The RT60 target is ≤ 0.6s. WELL v2 Feature 74 Part 1.
- 2
Measure or model the room geometry
Record the length, width, and height of the room to calculate the volume. A typical meeting room has a volume of 30-150 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 $5,000–$12,000 installed.
Cost of Compliance in United States
Treatment Cost Range
$5,000–$12,000 installed
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 meeting room in United States?
WELL v2 Feature 74 requires a reverberation time of ≤ 0.6s for meeting room spaces in United States. WELL v2 Feature 74 Part 1. Measurement should be performed per ISO 3382-2 methodology.
What is the background noise limit for a meeting room 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 meeting room in United States?
Typical acoustic treatment for a meeting room in United States costs $5,000–$12,000 installed. Costs vary based on finish quality, room size, and existing conditions.
Calculate WELL v2 Feature 74 Compliance for Your Meeting Room in United States
Enter your room dimensions, select materials, and instantly verify compliance against WELL v2 Feature 74. Free, no signup required.
Open Free RT60 Calculator