This may sound like a lot until you understand that manufacturers like gaf offer non prorated warranties covering both labor and materials up to 50 years on metal and asphalt roofs.
Shake roof lifetime.
But wood shingle or wood shake roof life expectancy varies considerably depending on the wood shingle or wood shake grade or quality.
Similarly a good quality properly installed wood shake roof has a life expectancy of 20 40 years.
Deterioration prevention maintenance needs to be performed every 2 to 4 years for the longest cedar shake roof life possible.
Unlike traditional cedar shakes interlock shake will never split warp mold or rot.
Average cedar shakes life expectancy generally all sources agree that when a cedar shake roof is properly installed and maintained a cedar roof life expectancy is around 30 years.
And you will not require routine maintenance or replacement.
With interlock shake roofing you will get the natural beauty of cedar shake roofing for a lifetime.