Material Properties
Comprehensive technical specifications for blow-in insulation materials.
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Cellulose Properties
- R-Value/inch: 3.2-3.8
- Density: 2.2-3.0 lb/ft³
- Settling: 15-20%
- Fire Rating: Class 1
- Moisture Content: <12%
- Sound Rating: NRC 0.8-0.95
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Fiberglass Properties
- R-Value/inch: 2.2-2.7
- Density: 0.5-1.0 lb/ft³
- Settling: 2-4%
- Fire Rating: Class A
- Moisture Resistance: 99%
- Sound Rating: NRC 0.75-0.85
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Mineral Wool Specs
- R-Value/inch: 3.0-3.3
- Density: 1.7-2.2 lb/ft³
- Settling: 1-3%
- Fire Rating: Class A
- Melting Point: >2000°F
- Sound Rating: NRC 0.9-1.0
Installation Standards
Critical specifications for professional installation:
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Coverage Requirements
- Attic Depth: 10-24"
- Wall Cavity: 3.5-5.5"
- Density Check: 3 pts/1000ft²
- Marker Height: 1 per 300ft²
- Ventilation Ratio: 1:300
- Baffles: 14.5-22.5"
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Equipment Settings
- Blowing Pressure: 2.5-3.5 psi
- Feed Rate: 15-25 lb/min
- Hose Length: 50-150 ft
- Hose Diameter: 2.5-3"
- Nozzle Type: Reducer
- Air Lock Setting: 80%
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Safety Protocols
- PPE Rating: N95+
- Light Level: 50 fc
- Clearance: 3" from heat
- Vapor Barrier: Class I
- Fire Blocking: 10' max
- Access Size: 16×24"
Performance Metrics
Key specifications for insulation effectiveness:
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Thermal Performance
- Heat Flow: 0.3-0.5 Btu/h·ft²
- Thermal Mass: 0.17-0.26
- Thermal Drift: <5%
- Air Infiltration: <0.25 ACH
- Thermal Bridging: 0.8
- Energy Savings: 20-50%
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Environmental Factors
- Recycled Content: 80-85%
- VOC Emissions: <0.5 g/L
- GWP Impact: <1.5
- Ozone Depletion: 0
- Fungi Resistance: Level 3
- Service Life: 20-30 yrs
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Quality Metrics
- Coverage Test: 1 per 5000ft²
- Density Check: ±10%
- Moisture Test: <25%
- Infrared Scan: 98%
- Air Leakage: <0.04 cfm/ft²
- Quality Grade: Level 1