Integrated photovoltaic roofing shingles, methods, systems, and kits thereof
Some embodiments of the present disclosure relate to an integrated photovoltaic (PV) roofing shingle comprising a photovoltaic (PV) module and a roofing shingle. In some embodiments, the roofing shingle is bonded to the PV module. In some embodiments, a bond strength between the roofing shingle and the PV module is from 5 N/mm to 60 N/mm tested according to ASTM D1876. In some embodiments, the integrated PV roofing shingle has a mass per unit area of 0.5 lb per square foot to 5 lbs per square foot. Methods, systems, and kits including the integrated PV roofing shingle are also disclosed.
1. An integrated photovoltaic (PV) roofing shingle comprising:
a photovoltaic (PV) module;
wherein the PV module comprises:
i) a polyolefin (POE) layer having a bottom surface and a top surface opposite the bottom surface, and
ii) a substrate having a top surface and a bottom surface, the top surface of the substrate on the bottom surface of the POE layer, the substrate comprising at least one material from the group consisting of a thermoplastic polyolefin, ethylene tetrafluoroethylene, polyolefin encapsulant, ethylene vinyl acetate encapsulant, and acrylics; and
a roofing shingle comprising a top surface and a bottom surface,
wherein the roofing shingle comprises a thermoplastic polyolefin (TPO) layer,
wherein the top surface is a continuous flat surface,
wherein the continuous flat surface of the roofing shingle is bonded to the bottom surface of the substrate of the PV module by a bonding material;
wherein a bond strength between the roofing shingle and the substrate of the PV module is from 10 N/mm to 60 N/mm tested according to ASTM D1876; and
wherein the integrated PV roofing shingle has a mass per unit area of 0.5 lb per square foot to 5 lbs per square foot.
2. The shingle of claim 1 , wherein the bonding material comprises an adhesive.
3. The shingle of claim 2 , wherein the adhesive comprises at least one of:
an asphaltic adhesive, an acrylic adhesive, a polyurethane adhesive, a silicone adhesive, and a rubber polymer based adhesives.
4. A method comprising:
obtaining an integrated PV roofing shingle comprising:
a photovoltaic (PV) module;
wherein the PV module comprises
i) a polyolefin (POE) layer having
a bottom surface and
a top surface opposite the bottom surface, and
ii) a substrate having
a top surface and
a bottom surface,
the top surface of the substrate disposed on the bottom surface of the POE layer,
the substrate comprising at least one material from the group consisting of a thermoplastic polyolefin, ethylene tetrafluoroethylene, polyolefin encapsulant, ethylene vinyl acetate encapsulant, and acrylics; and
a roofing shingle comprising
a top surface and
a bottom surface opposite the top surface,
wherein the roofing shingle comprises a thermoplastic polyolefin (TPO) layer,
wherein the top surface is a continuous flat surface,
wherein the continuous flat surface of the roofing shingle is bonded to the bottoms surface of the substrate of the PV module by a bonding material;
wherein a bond strength between the roofing shingle and the substrate of the PV module is from 10 N/mm to 60 N/mm tested according to ASTM D1876; and
wherein the integrated PV roofing shingle has a mass per unit area of 0.5 lb per square foot to 5 lbs per square foot; and
affixing the integrated PV roofing shingle to a roof using at least one fastener,
wherein the fastener comprises at least one nail.
5. The method of claim 4 , wherein the integrated PV roofing shingle has 1 fastener to 5 fasteners per square foot of the integrated PV roofing shingle after the affixing step.
6. The method of claim 4 , wherein the fastener is affixed to the roof by driving the fastener through an overlapping area of the integrated PV roofing shingle and into the roof.
7. The method claim 4 , wherein the bonding material comprises an adhesive.
8. The method of claim 7 , wherein the adhesive comprises at least one of:
an asphaltic adhesive, an acrylic adhesive, a polyurethane adhesive, a silicone adhesive, and a rubber polymer based adhesives.