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RE: Cradle-to-Cradle Design: The Way of the Future?
I would question the time frame you are placing on buildings? 15 to 20 years seems shortsighted for the construction of a new building. A new structure should have aspirations of 50, 75+ years. Building systems can be updated, removed, recycled over that life, but to assume that a building payback and is disposable at 15 to 20 years seems ridiculous. Designing a "shell" to withstand time and can be easily upgraded for changes in use or upgrading for energy efficiency seems more reasonable and better for the environment.
Good point @simpleengineer... perhaps the 15-20 year range is not necessarily when the building is deconstructed. Rather, it's likely that ownership will change at some point around then and the new buyer will benefit from this reduction of risk? Thanks for your thoughts - best way for me to learn.