energy-solutionsheader image Helpful? 0  Expanded Cork — The
Greenest Insulation Material?  All-natural expanded cork
boardstock insulation is now available in North America  Posted
on Aug 2 2012 by Alex Wilson    Familiar to wine drinkers as the
traditional bottle-stopper, cork is a natural product made from
the outer bark of a species of oak tree that grows in the
western Mediterranean region of Europe and North Africa. The
bark is harvested after trees reach an age of 18-25 years and it
regenerates, allowing harvesting every nine years over the
tree’s 200-year life.  In Portugal, the world’s leading producer
of cork, these oak trees are federally protected, and many cork
forests are certified to Forest Stewardship Council (FSCForest
Stewardship Council. An independent, nonprofit organization that
promotes responsible forest management through the use of a
third-party certification process. FSC certification includes a
chain-of-custody requirement that tracks sustainability of wood
products from growth to e