Rockwool sandwich panels are very common building materials for light steel structure and prefabricated houses. The sandwich panels are made of three layers, with the middle layer of different heat insulation sandwiched by color steel sheet. The Rockwool is featured by its high intensity, fire-resistant and good sound absorption. Most Rockwool in China market is of A2 fire-rate which is best for prefabricated houses and steel structure buildings. But this kind of material will lose its intensity and shrink when absorbing water. Please pay enough attention to its package and storage in the jobsite. Here are some technical parameters of the Rockwool sandwich panels,
A.Steel skin
| Material | PPGI |
| Painting | PE/PVDF |
| Color | Green/Grey/Red/Blue//White, or by RAL Chart only for big orders |
| Thickness |
0.40/0.45/0.50/0.55/0.60mm
|
| Protection |
Plastic film
|
B.Heat Insulation---Rockwool
| Material | Rockwool |
| Density | 100-125Kg/m³ |
| Fire Rate | A2 (incombustible goods) |
| Water Resist | Negative |
C.Sandwich panel-Wall Panels
| Corrugation | None or with little ribs |
| Thickness | 50/75/100/125/150mm |
| Width | 950mm |
| Connection with structure | By Rivets or self-tapping screws |
| Connection with panels | By insertion or corner profiles envelops |