Comfort for Year-Round Living: Passive House Thermal & Acoustic Standards
Insulation thickness alone does not guarantee comfort. How elimination of thermal bridges, Blower Door test targets (n50 < 0.6), and acoustic decoupling create supreme indoor living.
1. The Thermal Envelope: Ultra-Low U-Values & Eliminating Thermal Bridges
SERMODULA exterior wall build-ups achieve overall thermal transmittance coefficients as low as U = 0.13 W/m²K, while roofs achieve U = 0.11 W/m²K. However, material thickness is ineffective if thermal bridging occurs across steel members.
Our patented connection details integrate continuous exterior thermal breaks and aerogel composite isolators that isolate the primary steel skeleton from external climate exposure, eliminating cold spots and condensation risks completely.
2. Airtightness & Mechanical Heat Recovery Ventilation (HRV)
Controlled factory taping of vapor barriers enables SERMODULA homes to comfortably surpass strict Passive House airtightness requirements (Blower Door test n50 < 0.6 air changes per hour at 50 Pa pressure).
Because an airtight home requires fresh air, centralized heat recovery ventilation (HRV) units constantly exchange indoor air while recovering over 85% of thermal energy, filtering out pollen, dust and PM2.5 particulates.
Technical Data & Benchmark Matrix
External Wall U-Value
Roof Thermal U-Value
Airtightness (Blower Door n50)
Acoustic Decoupling (Party Walls)
Mechanical Ventilation Efficiency
Glazing Solar Factor & Argon Gas
| Performance Parameter | SERMODULA Standard | Conventional Code Requirement | Living Comfort Benefit |
|---|---|---|---|
| External Wall U-Value | 0.13 – 0.16 W/m²K | 0.24 – 0.28 W/m²K (Typical Building Regs) | Eliminates radiant cold wall surfaces; minimal heating bills |
| Roof Thermal U-Value | 0.11 – 0.13 W/m²K | 0.18 – 0.22 W/m²K | Prevents summer overheating and winter attic heat loss |
| Airtightness (Blower Door n50) | 0.4 – 0.6 h⁻¹ @ 50 Pa | 1.5 – 3.0 h⁻¹ (Building Codes) | Zero drafts, no cold air infiltration near windows |
| Acoustic Decoupling (Party Walls) | Rw + Ctr ≥ 58 dB | 50 – 53 dB (Standard Code) | Full conversational and TV silence between adjoining modules |
| Mechanical Ventilation Efficiency | ≥ 85% Sensible Heat Recovery | Natural trickle vents (Zero Recovery) | Pre-heated fresh air filtered from dust and outdoor allergens |
| Glazing Solar Factor & Argon Gas | Ug = 0.5 – 0.6 W/m²K (3-Pane) | 1.1 – 1.3 W/m²K (2-Pane) | Neutral glass coating prevents solar glare and summer heat trap |
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