Roofing shingles, and bundle of roofing shingles

A bundle of roofing shingles, comprising:

• a plurality of layers of roofing shingles,
• wherein the plurality of layers of roofing shingles comprises at least a first shingle layer, a second shingle layer, a third shingle layer, and a fourth shingle layer,
• wherein the first shingle layer includes a first roofing shingle,
• wherein the first roofing shingle has a first length,
• wherein the second shingle layer includes a second roofing shingle and a third roofing shingle,
• wherein the second roofing shingle has a second length,
• wherein the second length is about 28% to about 32% of the first length,
• wherein the third roofing shingle has a third length,
• wherein the third length is about 68% to about 72% of the first length,
• wherein a sum of the second length and the third length is substantially equal to the first length,
• wherein the third shingle layer includes a fourth roofing shingle,
• wherein the fourth roofing shingle has a length substantially equal to the first length,
• wherein the fourth shingle layer includes a fifth roofing shingle and a sixth roofing shingle,
• wherein the fifth roofing shingle has a length substantially equal to the second length,
• wherein the sixth roofing shingle has a length substantially equal to the third length.

A method, comprising:

• obtaining a bundle of roofing shingles, the bundle of roofing shingles comprising:
• a plurality of layers of roofing shingles,
• wherein the plurality of layers of roofing shingles comprises at least a first shingle layer, a second shingle layer, a third shingle layer, and a fourth shingle layer,
• wherein the first shingle layer includes a first roofing shingle,
• wherein the first roofing shingle has a first length,
• wherein the second shingle layer includes a second roofing shingle and a third roofing shingle,
• wherein the second roofing shingle has a second length,
• wherein the third roofing shingle has a third length,
• wherein a sum of the second length and the third length is substantially equal to the first length,
• wherein the third shingle layer includes a fourth roofing shingle and a fifth roofing shingle,
• wherein the fourth roofing shingle has a fourth length,
• wherein the fifth roofing shingle has a fifth length,
• wherein a sum of the fourth length and the fifth length is substantially equal to the first length,
• wherein the fourth shingle layer includes a sixth roofing shingle and a seventh roofing shingle,
• wherein the sixth roofing shingle has a sixth length,
• wherein the seventh roofing shingle has a seventh length,
• wherein a sum of the sixth length and the seventh length is substantially equal to the first length,
• wherein each of the first length, the second length, the third length, the fourth length, the fifth length, and the sixth length is different from one another;
• and
• installing the first roofing shingle, the third roofing shingle, the fifth roofing shingle, and the seventh roofing shingle on a roof deck.

A roofing system, comprising:

• a roof deck;
• and
• a plurality of roofing shingle installed on the roof deck,
• wherein the plurality of roofing shingle comprises at least a first roofing shingle, a second roofing shingle, and a third roofing shingle,
• wherein the first roofing shingle has a first length,
• wherein the second roofing shingle has a second length,
• wherein the second length is about 83% to about 87% of the first length,
• wherein the third roofing shingle has a third length,
• wherein the third length is about 70% to about 74% of the first length,
• wherein the first roofing shingle is installed in a first shingle row on the roof deck,
• wherein the second roofing shingle is installed in a second shingle row on the roof deck,
• wherein the second shingle row is above the second shingle row on the roof deck,
• wherein the third roofing shingle is installed in a third shingle row on the roof deck,
• wherein the third shingle row is above the second shingle row on the roof deck.