Systems and methods for mounting roof-mounted photovoltaic arrays including flashing and adhesive pads

1. A system for flashing a mount of a photovoltaic assembly on a surface, the system comprising:

a flashing including a lower surface and an upper surface, the flashing defining an opening to receive a fastener for securing the mount to the surface;

a first pad positioned along and attached to the lower surface, wherein the first pad extends across the opening; and

a second pad positioned along and attached to the upper surface, wherein the second pad extends across the opening, wherein the first pad and the second pad include an adhesive and form a water-resistant seal for the opening, the first pad and the second pad being attached to the flashing in a pre-installation configuration of the system, wherein the first pad and the second pad contact each other at the opening and bond together in the pre-installation configuration of the system.

2. The system of claim 1 , wherein the first pad is compressible and forms a water-resistant seal between the surface and the flashing when the mount is secured to the surface using the fastener.

3. The system of claim 2 , wherein the second pad is compressible and forms a water-resistant seal between the flashing and the mount when the mount is secured to the surface using the fastener.

4. The system of claim 1 , wherein the fastener has a first diameter, the opening having a second diameter at least 20% greater than the first diameter.

5. The system of claim 1 , wherein the first pad includes a first attachment surface and a second attachment surface opposite the first attachment surface, the first attachment surface being attached to the lower surface and forming a seal with the lower surface.

6. The system of claim 5 , wherein the second pad includes a third attachment surface and a fourth attachment surface opposite the third attachment surface, the third attachment surface being attached to the upper surface and forming a seal with the upper surface.

7. The system of claim 6 , wherein the second attachment surface is attached to the surface and forms a seal with the surface when the mount and the flashing are connected to the surface.

8. The system of claim 7 , wherein the fourth attachment surface is attached to the mount and forms a seal with the mount when the mount and the flashing are connected to the surface.

9. The system of claim 1 , wherein the fastener extends through the first pad and the second pad to secure the mount to the surface, wherein the first pad and the second pad form the water-resistant seal around the fastener when the fastener is positioned in the opening.

10. A system for flashing a mount of a photovoltaic assembly on a surface, the system comprising:

a flashing including a lower surface and an upper surface, the flashing defining an opening to receive a fastener for securing the mount to the surface;

a first pad positioned along and attached to the lower surface, wherein the first pad extends across the opening; and

a second pad positioned along and attached to the upper surface, wherein the second pad extends across the opening, wherein the first pad and the second pad include an adhesive and form a water-resistant seal for the opening, wherein the flashing defines at least one additional opening to receive the fastener, the first pad and the second pad extending across each opening of the flashing.

11. The system of claim 10 , wherein the mount has a first attachment configuration and a second attachment configuration, and wherein the first pad and the second pad seal each opening when the mount is secured to the surface in the first attachment configuration and the second attachment configuration.

12. A system for flashing a mount of a photovoltaic assembly on a surface, the system comprising:

a flashing including a lower surface and an upper surface, the flashing defining an opening to receive a fastener for securing the mount to the surface;

a first pad positioned along and attached to the lower surface, wherein the first pad extends across the opening; and

a second pad positioned along and attached to the upper surface, wherein the second pad extends across the opening, wherein the first pad and the second pad include an adhesive and form a water-resistant seal for the opening, wherein a release sheet covers the adhesive to prevent the adhesive from attaching to objects prior to installation.

13. The system of claim 12 , wherein the first pad and the second pad are attached to the flashing in a pre-installation configuration of the system, wherein the first pad and the second pad contact each other at the opening and bond together in the pre-installation configuration of the system.

14. The system of claim 12 , wherein the fastener extends through the first pad and the second pad to secure the mount to the surface, wherein the first pad and the second pad form the water-resistant seal around the fastener when the fastener is positioned in the opening.

15. The system of claim 12 , wherein the fastener has a first diameter, the opening having a second diameter at least 20% greater than the first diameter.

16. The system of claim 10 , wherein the first pad and the second pad are attached to the flashing in a pre-installation configuration of the system, wherein the first pad and the second pad contact each other at the opening and bond together in the pre-installation configuration of the system.

17. The system of claim 10 , wherein the fastener extends through the first pad and the second pad to secure the mount to the surface, wherein the first pad and the second pad form the water-resistant seal around the fastener when the fastener is positioned in the opening.

18. The system of claim 10 , wherein the fastener has a first diameter, the opening having a second diameter at least 20% greater than the first diameter.