Table 1.
Hypotheses about the stage-specific relevance of the tested barriers and drivers.
| Stage 1->2 | Stage 2->3 | Stage 3->4 | |
|---|---|---|---|
| BARRIERS | |||
| Unsure about the saving potential for energy costs after an upgrade | ++ | ||
| Plans to move soon | ++ | ||
| I do not manage to make a decision for what to do | ++ | ||
| I do not own the dwelling | ++ | ||
| The right point in time has just not come to upgrade | ++ | + | |
| Building protection regulations prevent me from upgrading | ++ | ||
| Not enough economic resources | ++ | ||
| Contractors who could do the job lack the necessary competencies | ++ | ||
| Depending on agreement with neighbors | + | + | |
| Difficult to know if information about energy upgrades can be trusted | ++ | ||
| Too much disturbance of the everyday life through such a project | ++ | ||
| Information about upgrading is difficult to find | ++ | ||
| Demands much time to supervise the contractors | ++ | ||
| Negative experience from previous projects | ++ | ||
| DRIVERS | |||
| Reduction of energy costs expected after upgrade | ++ | ++ | |
| Increased market value of the dwelling expected after upgrade | ++ | ||
| Payoff of the investment within a reasonable time frame | + | + | + |
| Positive health effects expected after upgrade | ++ | ++ | |
| The building standard of the dwelling is perceived as a waste of energy | ++ | ||
| Better living conditions in the dwelling expected after upgrade | ++ | + | |
| Higher comfort levels expected after upgrade | ++ | ++ | + |
| Information about energy upgrade is easily accessible | ++ | ||
| Information about energy upgrade is trustworthy | ++ | ||
| There are subsidy schemes in place supporting the upgrade | ++ | ||
++
very relevant,
+
relevant.