1. Color steel roofing sheet introduction
Color steel roofing sheet is produced by direct application of a paint (after applying a treatment
and in most instances, a primer) onto steel sheet in a coil-coating line. Coil-line painting can be
used to apply a paint coating directly on uncoated steel sheet or on metallic-coated steel sheet.
For maximum corrosion resistance, coil-line painting is often done on metallic-coated steels
including galvanized, galvalume and terne coated sheet.
2. Color steel roofing sheet application scope
Color steel roofing sheet is most commonly used for commercial, agricultural, and industrial
purposes,however, it is now also being recognized as an excellent form of residential roofing.
Galvanized roofing sheet is also known used as sinusoidal, corrugated iron or wriggly tin.
3. Prepainted Galvanized sheet main features
1)Combine the excellent barrier corrosion protection of aluminum with the galvanic protection of zinc.
2)Preferred product for long-term resistance to atmospheric corrosion
3)The superior corrosion resistance of galvanized steel sheet is achieved by the presence
of micro scopic zinc-rich and aluminum-rich areas within the coating.
4)Easy to install, high strength and lower costs
5)Prepainted Galvanized steel sheet is widely used as walls or roofs for factories, warehouses,
garages, exhibition centers
4. Prepainted galvanized steel roof sheet installation tips
1)Prepare the roof surface by removing any old roofing, rotten wood, and adding roofing felt
to the entire surface.
2)Calculate the number of sheets of metal 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 (10 cm).
Secure the sheets together using hex screws and washers. Whenever possible, line up the ridges
of each metal sheet, creating a tighter roof and make it easier to drill in the screws. Screw in the
spaces between where you nailed the first sheet to the wood.
6)Nail the second metal sheet to the roof.
7)Continue with the other sheets, overlapping on every side of each sheet except for at the edges of the roof.
8)Secure ridge caps to the bottom lip of the roof. Follow the same method as when installing metal
sheets: Overlap the ridge caps both with each other and with the sheets, using hex screws and washers
where the metal overlaps and nails where the ridge caps attach to wood. You will use 40 nails for each
length of ridge cap.
9)Test roof for any loose spots or places where water can seep in. If any roofing is sticking up, secure
it as much as possible with nails or screws if attaching it to other metal sheets.
Why Choose US?
1. Advantages: Mill/factory supply,Quality protection,3 steel production lines keep runing for the raw material.
2.More than 15 years Export Experiences,More than 40 countries customers.
3.Competitive price with best quality and service.Our serviceincludes Small MOQ,Large supply ability,
Can accept any complex inquiries,Stock available,Strong processing and warehousing service,
Strict quality control,Professional negotiation etc.
4.Delivery time: Within 20-35 days after the deposit.
5.Quality control:Mill Test Certificate is supplied with shipment;Third party inspection is highly welcomed.
| Name |
Prepainted Galvanized Steel Roofing Sheets/Colorful Iron Roofing Sheet |
| Material |
GI,GL,PPGI,PPGL |
| Thickness |
0.13-1.5MM |
| Length |
As your request |
| Tolerence |
+/-0.02mm |
| Zinc Coating |
60-275g/m2 |
| Painting Thickness |
Top Coating:18-35um; Back Coating:7-25um |
| Surface treatment |
unoil,dry,chromate passivated, non-chromate passivated,matt |
| Popular Size |
Raw material 762mm to 680,670,660,655,650 mm(after corrugated) and 9 waves;
Raw material 914mm to 815,810,790,780mm(after corrugated) and 11 waves;
Rawmaterial 1000mm to 930, 915,910,905,900,880,875mm(after corrugated)
and 12 or 14 waves |
| Package |
Standard seaworthy export packing: 3 layers of packing, inside is kraft paper, water plastic film is in the middle and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve. |
| Delivery |
Within 3 to 30 workdays after the deposit |
| Description |
Waved by galvanized sheet metal sheet and rolled wave of cold formed into
a variety of pressure plate, which is suitable for industrial and civil buildings,
warehouse, special construction, largespan steel structure housing the roof, walls and interior and exterior decoration, etc. |
| Payment |
T/T or L/C |
| Remarks |
Insurance is all risks and accept the third party test |
Audited Supplier 
){kind=link}