Design Solution · Building Envelope
Design Solution · Dream about it
Applying Passive House fabric and ventilation to a residential tower.
Passive House principles (super-insulation, airtightness, thermal-bridge-free detailing, heat-recovery ventilation) are applied to a tall residential tower, not just low-rise. Proving Passive House at height established a route to very low-energy high-density housing.
Applying Passive House principles — super-insulation, airtightness to 0.6 ACH@50Pa, thermal-bridge-free junctions and mechanical heat-recovery ventilation — to a residential tower extends a standard that was developed in low-rise single dwellings into a typology where envelope performance is more difficult to achieve and audit. The existence proof matters: demonstrating that the standard is achievable at height establishes the design and procurement pathway for high-density low-energy housing in urban contexts where land constraints make tall buildings unavoidable. This record carries only claimed evidence with no post-occupancy performance data on file, so the in-use energy figure cannot be verified from this record. The value is primarily the demonstration effect — a certified high-rise Passive House reduces the objection that the standard is only practical at low density, which has historically been used to limit its adoption in urban housing programmes. The honest qualification is that the performance gap between design intent and occupied reality tends to be larger in multi-residential buildings than in single houses: communal areas, lift and service energy, and the inability to enforce occupant behaviour at scale mean that whole-building energy consumption often exceeds the dwelling-level Passive House certification boundary, and specifiers should not conflate certification with guaranteed operational performance.
#passive house #high-rise #airtightness #super-insulation