Installations of Steeltiles extend back to 1972—almost 50 years. Tests have shown that after 30 years of continuous exposure in Kirkwood, California, Sierra Steeltiles retained more than 80% of the original base metal. We are in the process of having a certified testing laboratory evaluate the wear of the tiles after 20 and 40 years of exposure. Check this site often to keep up with the latest developments in this testing process.
As with any roofing material, proper installation is very important with Sierra Steeltiles. Follow the instructions and recommendations for the best, longest lasting performance.
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