Originally Posted By: mlord
Expensive though, not everyone is wealthy enough to be able to put the capital up front for such construction


I don't think it's that expensive. The airtightness isn't expensive to achieve as long as you understand where problems might occur, eliminating thermal bridges also costs very little. Yes, triple glazing and MVHR cost money but relative to the overall cost of construction I don't think it's crazy.

On our last project we think the PH elements might have added 5% cost overall. We're committed to it for all of our projects going forward including some quite cheap apartments built for rental.