Let s face it many homeowners may not be aware of what a roof drip edge actually is or what it does for a roof and if they are aware they may be talked out of installing it because of cost factors involved with roof replacement or repairs.
Roofing drip edge instructions.
After that shingling should proceed normally fitting each course up against the bottom of an existing course.
Ask this old house general contractor tom silva demonstrates the importance of a properly installed drip edge subscribe to this old house.
The drip edge is nailed in place using 1 1 2 galvanized roofing nails.
Install the drip edge by fitting it on the roof eave pushing it tightly against the edge of the plywood and nailing or screwing it down.
Use 1 inch galvanized roofing nails or 3 4 inch exterior screws.
Space the fasteners by about 12 inches.
Slip the wide flat flange of the material all the way under the first course of roof shingles as illustrated.
Make sure the outer edge extends over the gutter.
The best way is to install the roof drip edge only along the eaves first then place ice and water barrier in the snowbelt or felt paper underlayment over the drip edge.
Use roofing nails to secure the drip edge.
Nail the drip edge to the roof deck with minimum 12 gage roofing nails spaced 8 to 10 inches on center and 1 to 3 inches from the edge of the sheathing.
Overlap two pieces of flashing that meet end to end by at least 1 inch.
Secure the drip edge with roofing cement.
See drip edge flashing for roofs next install a course of shingles cut down to 10 inches wide so they fit against the bottom edge of the existing third course this creates a new 3 inch first course.
And again prying open the end with a small flat bar allows the pieces to overlap cleanly.
Ideally you d nail about every 12 inches and in no circumstances should you have 16 inches or more between nails.
Nail high up on the drip edge so that the shingles will cover the nails.
How to install a drip edge.
Learn more about drip edge at.
The problem is that a drip edge is technically supposed to be part of any shingle roof manufacturer s installation instructions and the process is.
If it doesn t pull the drip edge out slightly from under the shingles.
When you place the next drip edge piece it should overlap the first by an inch.
Owens corning roofing recommends installing drip edge on all roofs to be covered with asphalt shingles.
Gaf mastering the roof chapter 05 the drip edge is critical to provide a finished look and to add waterproofing.
