... ,square,triangle,U Roofing slate, roof slate, natural slate, slate roof, black roof slate, roofing tile, cheap slate, nature slate, slate roofing, slate roof,roofing slate tile,stone coated roof tile. Features and specifications: Edgechipped ... -12,12-15 and upshapeany shape,i.e.,rectangle,pentagon,scalloped shape etcholewith drilled hole,w/o hole Natural roofing slate is with ...