Patent ID: 8399060

Claim:
A shake fabricating process for producing environmentally friendly roofing shakes from a lumber drop block having a natural grain and having an upper surface and an opposed lower surface, said fabricating process comprising the steps of: scanning the drop block for unacceptable grain structure; cutting said drop block across said natural grain into blanks having a length generally equivalent to the length of a roofing shake and including a first end section and a second end section; scanning the blanks for defects and cutting the blanks longitudinally along the grain as to eliminate the defects cutting said blank on a diagonal plane relative to said first and second end sections, said plane extending from said first end to said second end so as to divide said board into a pair of shakes, each shake having a first and second end portion and defining a decreasing thickness from said first end portion to said second end portion; and placing said shakes in a pressure treating chamber for treatment with a chemical preservative.