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Free Damp & Condensation Tools
A standards‑based toolkit for damp surveyors, landlords and social‑housing teams. Every tool runs in your browser and supports the science behind condensation, mould and moisture.
No login No data collection PDF export Live global climate data
Dew Point Calculator
Dew point, vapour pressure, absolute humidity and surface water activity from air temperature and RH.
BS 5250Psychrometrics / BS 5250
U-value & Interstitial Condensation Risk Calculator
Glaser method: U-value, layer build-up, condensation plane and 12-month moisture balance with live climate data.
ISO 13788BS EN ISO 13788 / ISO 6946
Hygrothermal Moisture Risk Calculator
Simplified hourly transient moisture / hygroscopic-buffering screening model across multiple zones.
HourlyTransient hygrothermal screening
Ventilation Rate Calculator
Kitchen/bathroom/utility/WC extract rates and air changes per hour against UK Approved Document F.
Part FApproved Document F
Awaab’s Law Timeline Calculator
Works out the statutory investigation and repair deadlines for a reported damp & mould hazard.
Awaab’s LawAwaab’s Law timescales
IAQ Monitoring Dashboard
Indoor air quality reference for temperature, relative humidity, CO₂ and VOC thresholds.
IAQIndoor air quality
For an independent surveyor, see how faster field reporting can support a dated case record in our Awaab's Law reporting ROI guide.
