1. Prepainted galvanized roof sheet brief description:
Prepainted galvanized roof sheet is made by hot-rolled galvanized sheet, and then treated by degreasing, phosphating, chromate and others, coated with organic fluorine resin coating. They are manufactures through a continuous baking and a variety of profiling machine. It is coating has good adhesion, high tenacity; Lifespan can reach more than 30 years. And color steel sheet is high fireproofing, which is applicative in 500° C
2. Prepainted galvanized roof sheet technical parameters:
1). Light weight: 10-14 kg/square meters, equivalent to 1/30 of the brick
2). The coefficient of thermal conductivity: λ < = 0.041 w/mk.
3). High strength: The colorful steel can be made as structure bearing plate because it has good subtractors of bending resistance and outer pressure resistance, so generally, the prefab house don't use the beam column.
4). Bright color: The prefab house don't need the surface decoration, the color sheet has good anti-corrosion layer, which can use at least 10-15 years.
5). Installation flexibility: Construction period can be reduced by more than 40%
3. Prepainted galvanized roof sheet main features:
1). Prepainted galvanized roof sheet can prevent roof from the damage of excessive moisture and strong winds. 2). Color steel roof tile is attached to wood or metal trusses with steel nails or screws that have character of heat-resisting, corrosion resisting and ageless.
3). Light, strong, corrosion-resistant, and easily transported
4). High percentage of recycled material, can reach 90%.
4. Prepainted galvanized roof sheet packing details:
1). water proof paper covered with steel sheet on the top of products; Bundle by steel strip with iron pallet.
2). water proof paper covered by whole steel sheet; Bundle by steel strip with iron pallet.
5. Prepainted galvanized roof sheet installation instruction:
1). Prepare the roof surface by removing any old roofing, any rotten wood, and adding roofing felt to the entire surface.
2). Calculate the number of color metal roofing sheet needed. Divide the area of your roof by the size of the sheets you will be using. Remember that you will want the metal sheets to overlap.
3).Place your first metal sheet in a corner of the roof, flush against the surface.
4).Nail in the first metal sheet to the wood of the roof. You should use about 20 nails per sheet. Whenever possible, nail in the valley between the ridges, where the roofing is closest to the wood.
5). Place the second metal sheet alongside the first with an overlap of 3 to 4 inches (or 10 cm). Secure the sheets together using hex screws and washers. Whenever possible, line up the ridges of each metal sheet.
| Name |
Prepainted galvanized roof sheet |
| Standard |
ASTM, AISI, GB, JIS, EN |
| Thickness |
0.30~0.8mm |
| Width |
800~1200mm |
| Outside diameter |
Max 11800mm |
| Bending strength |
1-3T |
| Reverse impact |
6J-9J |
| Hardness |
3H |
| MEK |
> 120 times (front) |
| < 120 times (back) |
| Process speed |
Max 120m/min |
| Basic material |
Prepainted galvanized coil |
| Zinc coating |
40-275g/m² |
| Color |
Ral color or as your sample |
| Package |
Mills standard export packing, or according to the customers requirement |
| Providing capability |
5000 PCS per day |
| Use for |
Color substrate, building, home appliances, transportation, auto industry, office
supplies and articles for daily use |
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