Roofing grommet forming a seal between a roof-mounted structure and a roof

A roof flashing system, comprising:

• flashing defining a first projection and a second projection,
• wherein the second projection is defined within the first projection;
• a bracket positionable on the flashing and configured to receive the second projection;
• a washer positionable on the bracket;
• a fastener installable through the bracket, the washer, and the flashing,
• wherein the fastener is configured to compress the bracket, the washer and the flashing.

A flashing system, comprising:

• flashing including a raised portion and a projection,
• wherein a first aperture is defined through the projection;
• a support plate installable beneath the raised portion and configured to support the raised portion, the support plate including a second aperture that is configured to align with the first aperture;
• a bracket configured to at least partially surround the projection, the bracket including a third aperture alignable with the first aperture and the second aperture;
• and
• a fastener installable through the first aperture, the second aperture, and the third aperture.