Thermal comfort · workplace temperature monitoring
Thermal comfort assessment for UK workplaces
Quantify how a building actually feels. PMV/PPD modelling, continuous operative-temperature monitoring and CIBSE TM52 overheating risk assessment — turned into decisions facilities teams can act on.
Why assess
Operative temperature bands for occupied workplaces
Comfort is more than air temperature — radiant surfaces, humidity, air movement and clothing all matter. PMV/PPD modelling integrates them; continuous monitoring confirms reality matches design.
<19 °C
Below CIBSE winter comfort target.
19–24 °C
CIBSE-aligned occupied band.
24–28 °C
Productivity falls; review controls.
>28 °C
TM52 / TM59 criteria triggered.
PMV / PPD modelling
Predicted Mean Vote and Percentage Dissatisfied — the ISO 7730 standard.
Continuous T & RH
Networked sensors record temperature and humidity at 1-minute resolution.
Overheating risk (TM52)
Static and adaptive criteria for non-air-conditioned spaces.
Draught & air speed
Hot-wire anemometry quantifies local discomfort from supply diffusers.
Use cases
When thermal comfort assessment is the right tool
Occupant complaints (‘too hot’, ‘too cold’, ‘draughty’), post-occupancy evaluations, fit-out commissioning, summer overheating reviews, and WELL/BREEAM submissions all require defensible thermal data — not just thermostat setpoints.
Combine with indoor air quality monitoring, indoor environmental monitoring and office indoor air quality.
Benchmarks
Thermal comfort references for UK workplaces
| Reference | Metric | Target |
|---|---|---|
| CIBSE Guide A (offices, winter) | Operative temp | 21–23 °C |
| CIBSE Guide A (offices, summer) | Operative temp | 22–24 °C |
| BS EN 16798 (Category II) | PMV | −0.5 to +0.5 |
| CIBSE TM52 | Overheating hours | <3% occupied |
| HSE workplace minimum | Air temp | ≥16 °C (≥13 °C physical) |
Book a thermal comfort assessment
On-site survey, continuous temperature monitoring and a clear remediation plan.
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