Roofing shingle system and starter roofing shingles for use therein

A method comprising:

• obtaining a plurality of starter roofing shingles;
• adhering the plurality of starter roofing shingles as a starter course on a roofing substrate;
• obtaining a plurality of first course roofing shingles;
• and
• adhering the plurality of first course roofing shingles to the plurality of starter roofing shingles in a vertically adjacent orientation,
• wherein each starter roofing shingle of the plurality of starter roofing shingles includes
• a front surface, a back surface, a top edge, a lower edge, a length, and a width;
• a first sealant line disposed on the front surface of the starter roofing shingle that extends substantially across the length of the front surface of the starter roofing shingle;
• a second sealant line disposed on the back surface of the starter roofing shingle that extends substantially across the length of the back surface of the starter roofing shingle;
• a third sealant line disposed on the front surface of the starter roofing shingle that extends substantially across the length of the front surface of the starter roofing shingle;
• and
• a fourth sealant line disposed on the back surface of the starter roofing shingle that extends substantially across the length of the back surface of the starter roofing shingle,
• wherein the first sealant line is positioned opposite to the second sealant line at substantially the same distance along the width of the starter roofing shingle,
• wherein the fourth sealant line is positioned opposite to the third sealant line at substantially the same distance along the width of the starter roofing shingle, and
• wherein the starter roofing shingle is adhered to the roofing substrate with the second sealant line and is adhered to the first course roofing shingle with the first sealant line.

A kit comprising:

• a plurality of starter roofing shingles configured to adhere to a roofing substrate, at least one starter roofing shingle of the plurality of starter roofing shingles having
• a front surface, a back surface, a top edge, a lower edge, a length, and a width;
• a first sealant line disposed on the front surface of the at least one starter roofing shingle that extends substantially across the length of the front surface of the at least one starter roofing shingle;
• a second sealant line disposed on the back surface of the at least one starter roofing shingle that extends substantially across the length of the back surface of the at least one starter roofing shingle;
• a third sealant line disposed on the front surface of the at least one starter roofing shingle that extends substantially across the length of the front surface of the at least one starter roofing shingle;
• and
• a fourth sealant line disposed on the back surface of the at least one starter roofing shingle that extends substantially across the length of the back surface of the at least one starter roofing shingle;
• and
• a plurality of first course roofing shingles configured to adhere to the plurality of starter roofing shingles,
• wherein the first sealant line is positioned opposite to the second sealant line at substantially the same distance along the width of the at least one starter roofing shingle,
• wherein the fourth sealant line is positioned opposite to the third sealant line at substantially the same distance along the width of the least one starter roofing shingle, and
• wherein the at least one starter roofing shingle is configured to adhere to the roofing substrate with the second sealant line and is configured to adhere to at least one first course roofing shingle of the plurality of first course roofing shingles with the first sealant line.