Insulation Surface Temperature Calculator
Here’s a summary table that outlines common insulation materials, their thermal properties, typical applications, and expected surface temperatures under standard conditions.
| Insulation Type | Material | R-Value (per inch) | Typical Applications | Surface Temperature (°F) | Comments |
|---|---|---|---|---|---|
| Fiberglass Batt | Fiberglass | 2.9 – 3.7 | Walls, ceilings, attics | 40 – 70 | Good for thermal resistance; must be installed properly. |
| Foam Board | Extruded Polystyrene (XPS) | 5.0 – 5.5 | Foundation walls, roofing | 30 – 70 | Moisture resistant; suitable for below-grade applications. |
| Polyurethane Foam | Rigid Foam | 6.0 – 7.0 | Walls, roofs, refrigeration | 20 – 70 | High R-value; used in commercial applications. |
| Cellulose | Recycled Paper | 3.2 – 3.8 | Attics, walls | 40 – 70 | Eco-friendly; requires proper air sealing. |
| Mineral Wool | Rock or Slag Wool | 3.1 – 3.7 | Commercial buildings, fireproofing | 30 – 70 | Excellent fire resistance; soundproofing qualities. |
| Reflective/ Radiant Barrier | Aluminum Foil | 1.0 (depends on angle of incidence) | Roofs, attics | 50 – 120 | Works best in hot climates; reflects radiant heat. |
| Spray Foam | Closed-cell | 6.0 – 7.0 | Walls, roofs, irregular spaces | 20 – 70 | Provides air barrier; can be more expensive. |
| Cotton (Denim) | Recycled Cotton | 3.5 – 4.0 | Residential walls, attics | 40 – 70 | Eco-friendly; good sound absorption. |
| Sheep’s Wool | Natural Fiber | 3.5 – 4.0 | Walls, roofs, natural buildings | 40 – 70 | Moisture-regulating; sustainable option. |
| Aerogel | Silica-based | 10.0 – 30.0 | High-performance applications, space | 10 – 70 | Extremely low thermal conductivity; expensive. |