Overview
Blue insulation foam board is a rigid, closed-cell extruded polystyrene (XPS) sheet used for thermal insulation in building and construction. Known for its high compressive strength and moisture resistance, it is widely applied in walls, roofs, foundations, and floor systems to enhance energy efficiency and control thermal bridging.
Main Uses
- Thermal insulation for walls, roofs, and floors
- Insulation for foundations and basements
- Under-concrete slab insulation
- Cold storage facilities and refrigerated rooms
- Noise reduction in partitions and wall systems
- Protection of waterproofing layers in foundations
Technical Specifications
| Property | Value |
|---|---|
| Material | Extruded Polystyrene (XPS) |
| Color | Blue |
| Thickness Range | 2 cm to 10 cm |
| Standard Dimensions | 120 cm x 60 cm / 240 cm x 60 cm |
| Density | 30–38 kg/m³ |
| Thermal Conductivity | 0.028–0.034 W/m·K |
| Compressive Strength | 250–500 kPa (varies by grade) |
| Water Absorption | <0.5% |
| Fire Resistance | Limited (requires protection layer) |
| Temperature Resistance | -50°C to +75°C |
Advantages
- Excellent thermal insulation performance
- Lightweight and easy to handle
- Low water absorption and high moisture resistance
- High compressive strength for load-bearing applications
- Resistant to mold, bacteria, and aging
- Easy to cut and shape with tools
Application Cases
- Used in exterior wall insulation systems (EIFS)
- Installed beneath concrete floor slabs in residential buildings
- Thermal envelope in prefab modular structures
- Backfilling protection for foundation walls
- Insulating industrial refrigeration panels
Installation Tips
- Ensure surface is level and clean
- Cut boards with a utility knife or hot wire tool
- Fix with adhesive or mechanical fasteners as required
- Seal gaps with foam sealant to eliminate thermal bridges
- Cover with protective layers if exposed to sunlight or fire risk
