Module 7: Health & Safety in Insulation Work 

7.1 Handling Insulation Materials Safely

Key Hazards & Mitigation Strategies

• Fiberglass/Mineral Wool:

• Skin/eye irritation – Use gloves (nitrile), long sleeves, and safety goggles

• Respiratory risks – NIOSH-approved N95/P2 respirators for dust control

• Avoid sweeping dry debris – Use HEPA vacuum systems

• Spray Foam Chemicals:

• Isocyanates can cause asthma – Full-face respirators with organic vapor cartridges

• Off-gassing risks – Allow proper curing (24-72 hrs) before occupancy

• Natural Fibers (Sheep’s Wool, Cellulose):

• Dust suppression – Mist application during installation

• Mold prevention – Store in dry conditions before use

Material-Specific Protocols

7.2 PPE & Risk Assessments

Mandatory Protective Equipment

• Respiratory Protection:

• Disposable masks (dust) vs. powered air-purifying respirators (PAPRs) for spray foam

• Skin Protection:

• Tyvek suits for spray applications

• Anti-static clothing for flammable insulation

• Eye/Face Protection:

• Safety goggles for particulates

• Face shields for chemical splashes

Risk Assessment Process

1. Identify Hazards: Material MSDS review, job site inspection

2. Evaluate Exposure Routes: Inhalation, skin contact, ingestion

3. Control Measures: Hierarchy of elimination > substitution > engineering controls > PPE

4. Documentation: COSHH assessments (UK), OSHA compliance (US)

7.3 Working at Heights & Confined Spaces

Scaffolding/Ladder Safety

• Scaffold Requirements:

• Guardrails (top edge height: 950mm)

• Toe boards (min. 150mm) to prevent tool drops

• Ladder Protocols:

• 4:1 angle ratio (1m out for every 4m up)

• Extend ≥1m above landing point

Confined Space Entry (Attics/Crawlspaces)

• Permit System: Mandatory for spaces with:

• Limited entry/exit

• Poor ventilation (O₂ <19.5%)

• Monitoring:

• Gas detectors for CO₂/VOCs

• Buddy system with harnesses

7.4 Legal Compliance & Best Practices

Regulatory Frameworks

• UK:

• Construction (Design & Management) Regulations 2015

• Control of Substances Hazardous to Health (COSHH)

• US:

• OSHA 29 CFR 1926 (Construction Standards)

• EPA Lead Renovation Rules for pre-1978 buildings

Best Practices Checklist

✔ Pre-job toolbox talks
✔ Emergency wash stations on-site
✔ Waste disposal per local regulations (e.g., fiberglass recycling)
✔ Regular equipment inspections (ladders, spray rigs)