When to Install

• Install drip edging after the roof sheeting is complete. You should finish all drip edging before applying tar paper or other covering material.
  
  

How to Install

• Start at one corner of the roof. Snug the backside of the edging to the sheeting on the roof. Nail in place through the top side with a roofing nail. Keep the edging snug to the sheeting as you work your way to the end of the edging piece. Secure with a roofing nail through the top face every 18 inches. When you come to the end of an edging piece, allow a two-inch overlap with the new edging. Tap the edging together with a hammer. Secure the center of the lap with a roofing nail.
  
  

Edging Corners

• On a flat corner, use tin snips to cut a "V" section out of the topside of the edge strip. Place the center point of the "V" on the corner, and bend the edging into place against the roof.
  
  To edge a peak, use the tin snips to cut a "V" section out of the face of the edging. Place the edging against the roof and bend it into shape with the center of the "V" positioned on the peak.
  
  

Sizing

• Drip edge comes in a variety of colors and sizes. The size you pick should always have a broad enough face to fully cover your roof sheeting. In other words, if you have ¾-inch sheeting, your drip edge should have a minimum 7/8-inch face.
  
  If you are installing rain gutters, the face of the drip edge must be lower than the top mounted edge of the gutter's upper lip, so that water can drip into the gutter.
  
  If the face of the drip edging is too short in either instance, water can collect on the bottom edge of the roof sheeting. This can cause premature rot or even provide a path for water to enter the house.