How to Seal a Roof Line

Sealing Curled Ridge Caps

• 1

  Load your caulking gun with a 10-oz. tube of roof sealant. Snip off the end of the sealant and test the gun on a piece of scrap wood or some other scrap surface.

• 2

  Apply a bead of roof sealant around the curling edge of the ridge cap.

• 3

  Press down the ridge cap, creating a seal between the ridge cap and the roof.

• 4

  Place a brick on either side of the ridge cap to hold down the edges while the roof sealant dries.

Sealing Cracked Ridge Caps

• 5

  Load the caulk gun with roofing sealant as described in Section 1, Step 1.

• 6

  Apply a bead of roofing sealant under the cracked ridge cap.

• 7

  Press the ridge cap into the roofing sealant. Apply a second bead of sealant over the cap.

• 8

  Place a brick on the ridge over the cap if any curling is preventing the cap from laying flat in the sealant while it dries.