HHS 5-Pillar Engine · v3.1
AI-powered 5-pillar compliance engine used by 500+ NZ assessors. Live Schedule 2 heating calculations, R-value insulation checks, ventilation airflow, moisture ingress, and draught audits — every standard compliant, every time.
Live calculator
Drag the sliders. The Schedule 2 heating math, R-value insulation thresholds, ventilation airflow, moisture ingress, and draught tolerances update in real time against the relevant 2019 Healthy Homes Standards regulation thresholds.
Wellington, Hamilton, Christchurch — target 19°C indoor
Schedule 2 calculation
CompliantRequired kW (NZS 4246)
3.33kW
Volume
204.0 m³
ΔT
14°C
ALF
3.5
Surplus / Shortfall
+1.17 kW
kW = (V × ΔT × ALF) ÷ 3000. Source: NZS 4246:2016 — BRANZ ALF 3.5.Reg 4
Heating
Schedule 2 heating kW per NZS 4246:2016
Reg 5
Insulation
Ceiling R 2.9 / 3.3 · Underfloor R 1.3
Reg 7
Ventilation
Kitchen 50 m³/h · Bathroom 25 m³/h
Reg 6
Moisture
Ground vapour barrier + drainage
Reg 8
Draughts
No gaps > 3mm
Photo evidence
Drag the divider. Left is a typical contractor phone photo that fails evidentiary rules under the Evidence Act 2006. Right is an Allwise capture with EXIF GPS, azimuth, timestamp, and SHA-256 cryptographic seal.
Before — Standard phone photo
After — Allwise capture
End-to-end pipeline
Three stages, fully auditable. Capture at the property, calculate in the cloud, deliver as a court-defensible pack — every step traceable.
On-site at the tenancy. The assessor uses the Allwise iOS/Android app to capture each HHS photo with embedded EXIF GPS, azimuth, and timestamp. Photos are hashed (SHA-256) at the moment of capture.
A certified Allwise assessor visits your property, captures every standard with our mobile engine, and delivers a tribunal-ready 12-page PDF within 24 hours.