H1 / VM1 (6th ed) compliance estimate✕ Does not comply
Space-conditioning energy 16% over reference · glazing 25% (ref capped at 40%)
Energy vs reference building (this decides compliance)
Heating
3,564 vs 2,876 kWh
✕
Cooling
4,797 vs 4,332 kWh
✕
Total
8,361 vs 7,208 kWh
✕
Envelope R vs reference building (informational — defines the reference, does not gate compliance)
Floor
R 1.5 vs ref R 1.5
↑
Window
R 0.36 vs ref R 0.46
↓
Legal minimum checks (apply regardless of the energy budget)
E3 moisture — wall ≥ R1.5
✓
E3 moisture — roof ≥ R1.5
✓
6th ed (post-Nov 2026): the 50% trade-off floor is deleted for unheated elements. Heated-element minimums not applied (no embedded heating set). Unknown-glazing default R0.15 (U≈6.7) is used if no window spec is given. Indicative E3/AS1 internal-moisture floor (R1.5 to R2.2 depending on construction mass). Always applies, even if the H1 energy budget is met.
Under the modelling method, compliance is decided by total space-conditioning energy beating the reference building — you can trade a weaker element for a stronger one elsewhere. The only hard per-element floors are the legal minimums below. Indicative estimate (reference loads scaled by envelope U-ratio + 40% glazing cap, per the nezo reporting method); not a substitute for a full VM1/VM2 reference-building run.