Step flaps for integrating photovoltaic systems with roofing shingles

A system, comprising:

• a plurality of photovoltaic modules installed on a roof deck;
• a plurality of step flaps installed on the roof deck,
• wherein each of the plurality of step flaps includes a first layer and a second layer,
• wherein the first layer overlays a portion of the second layer, and
• wherein the first layer is attached to at least a portion of an overlapping portion of the second layer within an attachment area,
• wherein each of the plurality of step flaps includes a removable release liner between the first layer and the second layer,
• wherein an end of each of the plurality of photovoltaic modules overlays a portion of a corresponding one of the plurality of step flaps;
• and
• a plurality of roofing shingles installed on the roof deck,
• wherein each of the plurality of roofing shingles includes a headlap portion and a reveal portion, wherein each of the headlap portion and the reveal portion extend along the roof deck,
• wherein an end of a first roofing shingle of the plurality of roofing shingles overlays a first one of the plurality of step flaps, and
• wherein the second layer of a second one of the plurality of step flaps vertically above the first one of the plurality of step flaps overlays the headlap portion of the first roofing shingle but does not overlay the reveal portion of the first roofing shingle.

A system, comprising:

• a plurality of photovoltaic modules installed on a roof deck;
• a plurality of step flaps installed on the roof deck,
• wherein each of the plurality of step flaps includes a first layer, a second layer, and a third layer,
• wherein the first layer overlays a portion of the second layer, and
• wherein the first layer is attached to at least a portion of an overlapping portion of the second layer within an attachment area,
• wherein the third layer overlays a portion of the second layer,
• wherein the second layer is attached to at least a portion of an overlapping portion of the third layer at a second attachment area,
• wherein an end of each of the plurality of photovoltaic modules overlays a portion of a corresponding one of the plurality of step flaps;
• and
• a plurality of roofing shingles installed on the roof deck,
• wherein each of the plurality of roofing shingles includes a headlap portion and a reveal portion, wherein each of the headlap portion and the reveal portion extend along the roof deck,
• wherein an end of a first roofing shingle of the plurality of roofing shingles overlays a first one of the plurality of step flaps, and
• wherein the second layer of a second one of the plurality of step flaps vertically above the first one of the plurality of step flaps overlays the headlap portion of the first roofing shingle but does not overlay the reveal portion of the first roofing shingle.