There are three different areas that require proper roof flashing treatment:

1. Drip Edge

Linnert Roofing Drip EdgeDrip edge is installed on the perimeter of the roof along the eaves and provides an added level of waterproofing.

Drip edge:

  • Deflects water into a rain gutter, rather than between the rain gutter and fascia, where it can damage the fascia board.
  • Helps protect the roof deck from unnecessary exposure to water
  • Adds support to the first row of shingles

The drip edge should be rugged and resistant to corrosion to ensure a long life.



2. Valley Flashing

Linnert Roofing Valley FlashingValleys naturally deal with more water run-off than the rest of the roof, and therefore require special attention.

There are two types of valley construction – closed valleys and open valleys. Closed valleys have shingles covering the valley, while open valleys have a gap between the shingles on either side, with metal in the valley.



3. Roof Penetrations

Linnert Roofing Chimney Flashing

Areas where further flashing is vital:

  • Chimneys
  • Skylights
  • Roof/wall intersections
  • Other roof penetrations such as vents, plumbing stacks, or dormers