*Sandwich Panel Specifications*
It is a metal insulating panel "sandwich" with two layers of sheet metal and insulation in between. It is widely used in warehouses, factories, refrigerators, and roofs in Saudi Arabia.
*1. Sandwich Panel Layers*
1. *Outer and Inner Layers*: Galvanized sheet metal coated with polyester or PVDF paint. Sheet metal thickness: 0.35 mm to 0.7 mm per side.
2. *Insulation in the Middle*: 3 main types
**Insulation Type** | **Density** | **Fire Resistance** | **Usage**
**Polyurethane PUR/PIR** | 40-45 kg/m3 | PIR is better, flame resistant | Regular roofs and walls
**Rockwool** | 80-110 kg/m3 | Excellent A1 non-combustible | Refrigerators + buildings requiring high fire safety
**Polystyrene EPS** | 15-25 kg/m3 | Less resistant | Cheap, for temporary storage
*2. Available Thicknesses*
The insulation thickness determines thermal and acoustic insulation: *40 mm, 50 mm, 60 mm, 80 mm, 100 mm, 150 mm, 200 mm*
As thickness increases, insulation improves and U-Value decreases.
*3. Standard Sizes*
- *Effective Width*: 1000 mm or 1150 mm
- *Length*: Upon request, up to 12-15 meters depending on transportation
- *Profile Types*: Smooth, Trapezoid, or Micro-Rib
*4. Key Technical Specifications*
1. *Thermal Conductivity U-Value*: The lower it is, the better the insulation. 100 mm PIR panel ≈ 0.22 W/m2.K
2. *Fire Resistance*: PIR and Rockwool are classified as Class A2 or B-s1,d0 according to Saudi code.
3. *Wind Load Resistance*: Withstands wind and snow loads up to 2400 Pa wind and 5400 Pa snow.
4. *Acoustic Insulation*: 100 mm Rockwool provides ≈ 32-35 dB
5. *Weight*: Very light. 50 mm panel ≈ 9-11 kg/m2. Reduces the load on the metal structure.
6. *Warranty*: Up to 20 years against fading and corrosion.
*5. Important Features for Saudi Arabia*
1. *Fast Installation*: Installed without drilling directly with special clips, which maintains structural integrity and prevents water leakage.
2. *Withstands Low Slope*: Saves costs in steel structures.
3. *Compatible with Solar Energy*: Comes with a ready-covered panel for installing 60 or 72-cell modules without drilling the roof.
Do you need sandwich panels for a roof, wall, cold room, or do you want to install solar energy on it? I can provide you with the most suitable thickness and type.
