NZBC H1/AS1 Compliance Check
Check your property's insulation against the NZ Building Code H1/AS1 5th Edition requirements for Wellington (Climate Zones 5 & 6). Instant compliance rating, upgrade recommendations, and energy savings estimates.
Is Your Home Warm Enough?
Check against NZBC H1 requirements for Wellington (Climate Zones 5 & 6). Instant compliance rating and upgrade recommendations.
Your roof / ceiling is R 3.1 below NZBC H1 minimum.
$6,250 – $10,156
Based on Wellington ~2,800 heating degree days and NZ average electricity rates.
Top-up ceiling insulation
Add polyester or glass wool blanket to reach H1 minimum.
Full ceiling insulation upgrade
Remove old insulation, install R 7.0 high-density blanket with vapour barrier.
Architectural roof system
Rigid PIR/PUR panels between and over rafters with thermal break, achieving R 8.0+.
Free H1 compliance report with personalised upgrade costs for your home.