Steele Associates Blog
Some people shy away from green roofs for fear of leaking. Most leaks occur when a membrane fails; especially over a framed rather than concrete roof structure. But there's an economical system that's as watertight and reliable as a metal roof, because it's built over a metal roof!
Using plastic sheet, drainage cell and webbing, green roofs can be built over just about any new or existing metal roof. No concrete slabs or waterproof membranes are required to make a watertight greenroof.
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