Photovoltaic modules for commercial roofing

A system, comprising:

• a roof deck,
• wherein the roof deck includes a slope of 0.25 inch to 3 inches per foot,
• wherein the roof deck includes a roofing membrane, and
• wherein the roofing membrane is composed of a first material;
• and
• at least one photovoltaic module installed on the roof deck, the photovoltaic module including
• at least one solar cell
• an encapsulant encapsulating the at least one solar cell,
• wherein the encapsulant includes a first surface and a second surface opposite the first surface,
• a frontsheet juxtaposed with the first surface of the encapsulant, and
• a backsheet juxtaposed with the second surface of the encapsulant,
• wherein the backsheet includes
• a head flap located at a first end of the backsheet, and
• a bottom flap located at a second end of the backsheet opposite the first end,
• wherein the backsheet is composed of the first material,
• wherein at least a first portion of the head flap is attached to the roofing membrane, and
• wherein at least a second portion of the bottom flap is attached to the roofing membrane.