Why Mould Matters in Commercial Settings
Mould in commercial buildings is more than a cosmetic issue. Fungal spores can trigger respiratory symptoms, exacerbate asthma, and in severe cases cause allergic reactions. For building operators and facilities managers, unmanaged mould presents health liability, compliance risk, and reputational damage.
Common Causes
Mould growth requires moisture. In commercial buildings, the most frequent sources include:
- Condensation from poor thermal performance or inadequate ventilation
- Water ingress through roof, facade, or plumbing failures
- Humidity levels above 60% RH sustained over time
- Blocked or ineffective extract ventilation in wet areas
- Concealed growth behind wall linings, above suspended ceilings, or within HVAC systems
Assessment Approach
Green Air Monitoring conducts structured mould assessments that go beyond visual inspection:
- Environmental monitoring — temperature, humidity, and dew point mapping to identify condensation risk zones
- Air sampling — fungal spore counts compared against background levels and published guidance
- Surface sampling — tape lifts and swabs to identify genus and assess contamination severity
- Moisture mapping — identifying the moisture source driving growth
Post-Remediation Verification
After remediation works, we provide clearance testing to verify that spore levels have returned to acceptable background concentrations — giving building operators documented evidence that the issue has been resolved.