Roof tiles, roof tile layout, and method of manufacture

An apparatus for manufacturing roof tiles comprising:

• a composite ribbon extruder arranged to extrude a composite ribbon defining an upper surface, a lower surface, and a pair of opposite ribbon side edges;
• a conveying mechanism arranged to move said composite ribbon from an upstream position to a downstream position along a composite ribbon path;
• a cutting blade assembly including an upstream cutting blade and a downstream cutting blade arranged to demarcate said composite ribbon into an alternating succession of a first roof tile type and a second roof tile type by engaging said composite ribbon with said upstream cutting blade and said downstream cutting blade such that each roof tile type is demarcated at an upstream tile edge by one of said cutting blades and at a downstream tile edge by the other of said cutting blades, wherein a selected one of said upstream cutting blade and said downstream cutting blade includes a pair of L-shaped cut-out extensions arranged to demarcate a pair of cut-out portions along one of said upstream and downstream tile edges on opposite ones of said ribbon side edges;
• a pallet conveying path defined by a succession of demarcated roof tile types separated into distinct roof tiles by said conveying mechanism;
• and
• a roof tile curing station positioned along said pallet conveying path and arranged to cure said distinct roof tiles to form a set of cured roof tiles.