passivhaus

the essentials...

of the standard are derived from scientific research to find  a building-fabric based design approach which achieves exceptional warmth and comfort


warmth...

derives both from super-insulation of all external elements

- walls, roofs, floors, windows + doors  + minimising cold-bridges

  1. -and high levels of airtightness to enable controlled ventilation


comfort...

is achieved by both warmth, the lacks of drafts  through excellent airtightness, and comfort ventilation  - whole-house mechanical ventilation with heat recovery [mvhr]


open source

most uk passivhaus designers are working in an open source way, sharing their rapid learning on this new UK approach





<< some passivhaus design principles [author’s copyright acknowledged]



more >>