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What is the life expectancy of a roof garden?

April 26, 2017expectancy garden life roof

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What is the life expectancy of a roof garden?

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While Carlisle warrants up to 20 years, the roof life is expected to increase by 100%. In Germany, there are several 50+ year old roof gardens which have never been replaced and have never leaked. The waterproofing membrane beneath a roof garden receives no ultraviolet light or massive temperature fluctuations, contributing to a long life span.