This is a 2400 sq/ft ranch in Defiance County.  One layer was removed in preparation for the new Owens Corning Oakridge laminate shingle installation (30 yr warranty & 110 mph wind protection).  The color choice is Driftwood.  Due to the low pitch (4/12), we installed ice guard along all eaves and up each valley to prevent ice dams that could cause leaking.  Good quality stuff and we don’t charge extra for the service!  In addition to this, we always install a layer of aluminum flashing in each valley, as well as two overlapped layers of tar paper, and finally the shingles.  That is a quadruple protected valley – guaranteed not to leak before the shingles reach the end of their life!  We finished this job in three days.