How Long Does Galvanized Roofing Sheet Last?

Galvanized roofing sheet could live for 20 to 50 years if it is installed properly and with periodic maintenance. Galvanized steel roof panel is coated with zinc, which makes it more corrosion-resistant and durable. The service life of galvanized roofing sheet is mainly up to the zinc layer thickness and the use environment. 

What Factors Affect Galvanized Roofing Lifespan?
After knowing its life expectancy, you may consider what factors affect the life of zinc steel roof panels? We’ve compiled some main factors to get you aware of that may shorten its service life.
1. Raw Material
Beyond all doubt, the material is the biggest factor that goes into the lifespan of a roof. Galvanized roofing sheet is usually made of high-strength galvanized steel sheet. If it uses poor quality steel material, it will be useless and in very short life span.
2. Weather
Every roof panel goes through wear and tear from the weather throughout its whole life. The weather condition in your area determines how fast that wear and tear will affect your metal roof. Generally, the high or extremely cold temperature will accelerate the corrosion faster.
There’s nothing you can do about the weather. Just keep in mind that your local weather will influence the lifespan of metal roof.
3. Installation Way
No matter how durable and strong the metal roof is, it won’t last longer if it is incorrectly installed.
4. Maintenance
Though the metal roof is in low maintenance, it still needs some regular inspections to ensure that it receives early repairs before problems get bigger. Without maintenance, it leads to leaks and will shorten the metal roof’s lifespan.
5. Growing Moss
Moss can speed up the roof deterioration. Moss often thrives in shady roof areas such as the northern part of the roof surface. The organic matter on it promotes moss growth and corrodes the sheet easily.

How To Choose the Right GI Sheet Roof?
The roof you choose will have a great impact on the future value of the property, the aesthetics of the home, and the quality of your home life. There are a few things that need to be considered before buying.
1. Gauge
Galvanized roof panels have a variety of thicknesses, which are appropriate for different applications. Besides, as thickness increases, the strength and soundproofing property of a metal panel also increase. Choosing the right sheet thickness for your intended application will ensure the proper completion of a construction project and help to avoid unnecessary expenses.
2. Size
Remember to pick the right panel size for your home as it can install appropriately and easily. You can get your house roofs measured before buying.
3. Zinc Coating
Generally, the higher the zinc content, the stronger the corrosion resistance, and the higher the cost. You can choose the suitable one according to your requirements and budget.
4. Certificate
The quality certificate assures you that every metal sheet is certified with production standards. It is essential for you to identify before buying. Because if you buy a metal roofing sheet without the quality inspection, you may run the risk of having a roof with poor quality and low durability.

We are always here for your metal roofing needs. Wanzhi Steel has quality galvanised corrugated roofing sheets for sale. You can rest assured that our metal sheets offer great strength, durability and safety.
If you have some issues choosing the right metal roof for your home, get in touch with our expert team today.