Patent ID: 7575701

Claim:
A method of fabricating a shake panel, comprising: providing a cured sheet of fiber-cement material having cement, silica and cellulose fibers; cutting the sheet of fiber-cement material into a plurality of planks by shearing the sheet using opposing serrated blades to form sheared longitudinal edges along the planks, wherein each of the planks has a top longitudinal edge spaced apart from a bottom longitudinal edge by a width, a first side edge extending transverse to the top and bottom longitudinal edges, and a second side edge spaced apart from the first side edge by a length and extending transverse to the top and bottom longitudinal edges; and stamping a plurality of slots through individual planks, the slots extending from the bottom longitudinal edge to an intermediate location between the top and bottom longitudinal edges, and the slots being spaced apart from one another along the bottom longitudinal edge.