Open Plan Office Acoustic Design in Germany — WELL v2 Feature 74 Requirements
Open plan workspaces, trading floors, collaborative offices. Typical volume: 500-5,000 m².
What WELL v2 Feature 74 Requires for a Open Plan Office in Germany
Regulation: WELL v2 Feature 74
RT60 target: ≤ 0.5s
Background noise limit: ≤ 45 dBA
STI requirement: < 0.50
Local note: DGNB SOC1.1 aligns with WELL acoustic requirements.
How to Calculate WELL v2 Feature 74 Compliance for a Open Plan Office in Germany
- 1
Identify the applicable Germany standard and target
Look up WELL v2 Feature 74 for open plan office spaces in Germany. The RT60 target is ≤ 0.5s. WELL v2 Feature 74.
- 2
Measure or model the room geometry
Record the length, width, and height of the room to calculate the volume. A typical open plan office has a volume of 500-5,000 m².
- 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 ≤ 0.5s, specify additional absorption. Typical treatment cost in Germany is €100–€180/m².
Cost of Compliance in Germany
Treatment Cost Range
€100–€180/m²
Currency: €
What Affects Cost
- • Room volume and surface area
- • Target standard strictness
- • Existing acoustic conditions
- • Finish and material quality
How WELL v2 Feature 74 Differs from Other Standards for Open Plan Office in Germany
| Requirement | WELL v2 Feature 74 | DIN 18041:2016 |
|---|---|---|
| RT60 Target | ≤ 0.5s | ≤ 0.5s |
| Background Noise | ≤ 45 dBA | ≤ 40 dBA |
| STI | < 0.50 | ≥ 0.60 |
| Cost Range | €100–€180/m² | €95–€160/m² |
Frequently Asked Questions
What RT60 does WELL v2 Feature 74 require for a open plan office in Germany?
WELL v2 Feature 74 requires a reverberation time of ≤ 0.5s for open plan office spaces in Germany. WELL v2 Feature 74. Measurement should be performed per ISO 3382-2 methodology.
What is the background noise limit for a open plan office in Germany?
The background noise limit is ≤ 45 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 open plan office in Germany?
Typical acoustic treatment for a open plan office in Germany costs €100–€180/m². Costs vary based on finish quality, room size, and existing conditions.
Calculate WELL v2 Feature 74 Compliance for Your Open Plan Office in Germany
Enter your room dimensions, select materials, and instantly verify compliance against WELL v2 Feature 74. Free, no signup required.
Open Free RT60 Calculator