Buildings overheat in May. Buildings under-heat in November. Both are evidence problems.
“rooms too cold / too hot”
Thermal comfort is the most variable standard in the book — it depends on outdoor weather, occupancy, fabric, and time of day. Continuous internal temperature measured against TM52 adaptive thresholds, BB101 limits, and HHSRS Phase 2 cold floors gives you one defensible answer.
Three capabilities, one feed.
TM52 adaptive overheating
Internal temp vs outdoor running-mean. Three pass/fail criteria evaluated at term boundaries — exactly how CIBSE intends.
Cold floors for HHSRS
Sustained sub-16°C in occupied dwellings flags as an HHSRS hazard. Evidence rolled per property, per month.
Approved Doc O for new builds
Part O internal-temperature compliance for new residential. Simplified or dynamic compliance route, your call.
BB101 Overheating Criterion 1 fails at ≥ 3% of occupied hours over adaptive threshold. Caught at term boundary, not at the parent complaint.
It doesn’t stop at the screen.
The reading is checked against the rulebook on an orchestration engine. When it’s out of band the job is created, sent to the right person and chased until it’s signed off — and every step is logged. Here’s a real flow for thermal comfort.
Rules & flows on an orchestration engine · every action traceable to a line of config
The audit trail it builds.
One sensor stream. Multiple rulebooks. Each row links to the full entry in the Standards matrix.
Where it lives in real estates.
Carry this on your estate?
Short call. We’ll scope what a v1 deployment looks like and walk through the standards we can prove the day it goes live.