Pre-painted galvanized roofing sheets. In the past 20 years, end-users, contractors and consultants have become increasingly aware of the losses associated with thermal transmission. Insulation of various types is now used in all types of buildings. The insulated polyurethane sheets have a thickness of 20 mm. Liner panels have one metal skin surface with polystyrene foam board adhered to it for better insulation. Polyurethane has been recognized as the most resistant material to heat transmission.
Uses: These sheets can be successfully applied to cold storage, warehouses, residential villas, houses, covered pools and sports complexes. Moreover, there are various choices of rich colours available both in single skin or double skins.
The features include:
- Resistant to corrosion, deformation and breaking
- High resistance to water absorption
- No requirements for interior or exterior finishing
- Can simply be disassembled when necessary
- High insulation value
- Long service life
- Strong aesthetic value
Technical Data:
| General Details | |
| Top Facia Sheet | Pre Painted Galvanised Steel (PPGS) |
| Thickness of Top Facia Range (mm) | 0.35 mm to 0.7 mm |
| Width of the sheet (mm) | 950 mm |
| Length Range (mm) | 150 mm to 11500 mm |
| Insulation Type | Polyurethene Foam |
| Insulation Thickness (mm) | 30 mm |
| Bottom Facia Sheet | Rigid PVC Film |
| Thickness of PVC Film | 0.08 mm |
| Length Range (mm) | 200 mm to 11500 mm |
| Specular Glass @ 60 Deg (Amount of light reflected from surface) |
40 - 90 % |
| Pencil Hardness of Top Facia (First pencil that does not scratch) |
2 (HB Grade) |
| Scratch Resistance (Bare metal shall not be visible through scratch) |
1500 Gms |
| Protective Film | With or Without Guard Film |
| Coating | |
| Top Coat | 5 Micron Primer and 20 to 25 Micron of Top polyester coat |
| Back Coat | 5 to 10 Micron of service coat |
| Zinc Coating | 90 to 120 grams per sqm |
| Color Shades |
| White, Off White, Beige, Green, Light Green, Dark Green, Yellow |
| Red, Light Pink, Dark Pink, Blue, Dark Blue |
| Corrosion Resistance | |
| Elements | Composition % |
|---|---|
| Carbon, max | 0.08 |
| Maganese, max | 0.50 |
| Phosphorus, max | 0.020 |
| Sulfur, max | 0.030 |
| Dimensional Tolerance | |
| Tensile strength, min, psi, [MPa] | 45000 [280] |
| Yield strength, min, psi, [MPa] | 22000 [150] |
| Dimensional Properties as per ASTM A500 standard | |