Does Cedar or Redwood require a preservative?
Yes. Twenty years ago we had confidence that Cedar and Redwood contained their own natural preservatives (which are present in the heartwood, or inner core of the tree), although these wood types were still susceptible to damage from UV rays and water damage. Today’s second growth harvest of Cedar and Redwood is not as well protected. More knots and less heartwood is evident in today’s decking lumber.
