How Long Does Galvanized Roofing Sheets Last?

Galvanized steel roofing could live for 30 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. Also, it is light in weight and silver-colored, which makes it easy and quick to install. That’s why galvanized steel roof is getting popular among investors, contractors, and house owners. At Wanzhi Steel, we have provided high-quality galvanized steel roofing sheets for about 20 years. We would like to share more information here.

What  Will 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 steel. 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 long if it is incorrectly installed.

4. Maintenance

Though the corrugated galvanized 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.

Tips for Prolonging the Service Life of GI Roof

Accordingly, we discuss how to increase the lifespan of the metal roofs by taking the proper precautions. A longer lifespan means you get more value out of your roof before you have to pay for a new one.

1. Proper Installation

As mentioned, when the roof is installed properly, it will last longer. For example, if the zinc layer and the painting on the surface were broken during installation, any scratches, dents, and markings may expose the metal to moisture. It will affect the lifespan of your metal roof.

2. Regular Inspection

No maintenance may cause problems that keep undetected until it’s too late, resulting in expensive repairs or even a roof replacement. You can perform preventive roof maintenance annually, for example, cleaning the debris, leaves, touching up scratches, removing dirt, stains, moss, and other elements. If you live in an area with heavy snowfall, remember to remove snow to lighten the stress on the roof.

At Wanzhi Steel, we have a wide variety of galvanized roofing panels to choose from. Besides, we also have roofing sheets made with galvalume steel and color-coated steel. As one of the top corrugated roofing sheets manufacturers in China, we have our factory, advanced equipment, and professional teams. If you have any questions, please contact us right now.