Process for in-line extrusion coatings onto roofing shingles during manufacturing and roofing shingles made by the process

An apparatus comprising:

• a processing line configured to allow a mat of substrate material having a first surface and a second surface to be conveyed in a downstream direction;
• a die positioned along the processing line and configured to eject a stream of molten polymeric material onto the first surface of the mat of substrate material as the mat is conveyed in the downstream direction to deposit a film of polymeric material on the first surface of the mat of substrate material;
• a supply apparatus for supplying the molten polymeric material to the die;
• a cooling apparatus configured to cool the film of polymeric material;
• a coater positioned downstream from the cooling apparatus and configured to apply a coating of bituminous material in molten form to the second surface of the mat of substrate material;
• wherein the coating of bituminous material is applied after cooling the film of polymeric material;
• a granule applicator configured to apply granules to the coating of bituminous material;
• a cutting station configured to cut the finished mat into individual shingles;
• and
• a packaging station configured to bundle the individual shingles and package the bundles.