![]() Slitting the vertical leg of the rake drip-edge makes it easier for you to bend it over the leg of the eaves drip-edge. In corners, where rake edges meet eaves, run the rake drip-edge over the eaves drip-edge. #Drip edge flashing installAlong the rake edges of a roof, install underlayment before applying drip-edge. Underlayment along the eaves will overlap the top of the drip-edge. Regardless of how you layer the drip edge and roofing underlayment, drip edge needs to be nailed into sheathing using standard roofing nails. In order to do the best job possible while also meeting code, he’s come up with a method that he describes in the article Ice-Dam Protection: Over or Under Eave Drip Edge? Though building codes dictate that you install drip-edge along the eaves first, remodeler Mike Guertin points out that WSU manufacturers recommend that you wrap their products over the edge of the sheathing and onto the fascia to prevent water from ice dams from migrating up the back of the drip edge and into the roof. Thus, at lower corners the rake drip-edge will overlay the eaves drip-edge.ĭrip-edge is sold in varying widths and comes in an L shape or a lopsided T shape. Lower Roof Corners Underlayment runs over the eaves drip-edge, and rake drip-edge runs over the underlayment. The crimped edge of drip-edge flashing also resists bending and supports overhanging shingles. Drip-edge also covers and protects sheathing edges from gutter splashback and ice dams along the eaves and gives rake edges a clean, finished look. Drip-edge diverts water away from roof edges so it won’t be drawn by capillary action back up under shingles or sheathing. ![]()
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