A building integrated photovoltaic system includes a plurality of photovoltaic modules installed in an array on a roof deck. Each of the photovoltaic modules at least one solar cell, a first encapsulant encapsulating the at least one solar cell, a frontsheet juxtaposed with a first surface of the first encapsulant, and a backsheet juxtaposed with a second surface of the first encapsulant. The frontsheet includes a glass layer, a second encapsulant, and a first polymer layer. The backsheet includes a first layer and a second polymer layer attached to the first layer. Each of the photovoltaic modules includes a wire cover bracket, which is configured to overlap the wire cover bracket of an adjacent one of the photovoltaic modules.