Nail the drip edge to the roof deck with minimum 12-gage roofing nails spaced 8 to 10-inches on center and 1-½ to 3-inches from the edge of the sheathing. Drip edge helps to protect the roof from forming leaks over time by protecting the roof from wind and water exposure. Narrator: Drip edge also prevents rainwater from running down the fascia, and instead directs it into the gutter. jfunderburk (Joe Funderburk, CMI) April 19, 2019, 1:24pm #1. Its main functional purpose is to protect fascia boards from the water rolling off a roof. First, place your drip edge on the rake edge. This allows for an easy overlap of about 1-1/2 inches where two pieces of drip edge meet. And that means a potentially ugly hump in the drip edge. Make the necessary cuts so that the drip edge should only hang past the edge by an inch. For this reason, a wider face drip edge (at least 1 1/2″) is recommended. To create lap joint, you overlap the drip edge ends with the upper edge over the lower edge, so water flowing down hill will pass over the joint, not divert under it. Standard practices says to overhang the shingles by the same length as the starter, so about ½” to ¾” (as long as there is a Drip Edge present to protect the Fascia). Overlap the gable drip edge pieces by 1 inch or more. 3. Slip the wide, flat flange of the material all the way under the first course of roof shingles, as illustrated. Along the rake edges, however, the drip-edge should be installed after the underlayment is installed (see Drip-Edge Installation, facing page, right). For example, if the overlap is 2 inches, cut two inches of folded protrusion off the overlapping piece. Drip-edge should be installed directly over the edge of the roof sheathing along the eaves. Does anyone know the correct overlap that the ashphalt shingles should be at the drip edge and eaves? So depending on where you work and what code prevails in that area of the … Step 5: Bend in the flap of the drip edge to form a corner. When the flashing is installed, you may need one … The International Residential Code (IRC) did not require metal drip edges along eaves and rake edges until the 2012 edition (See Code Requirements for Drip Edge, above). GAF recommends up to 1/2 inch overhang. Section 1507.2.9.3 Drip edge. I’ve been studying the roofing courses and reading installation instructions. Provide drip edge at eaves and gables of shingle roofs. The entire 6,000 SF home had the shingles cut even with the drip edge. Shingle overlap necessary with a drip edge? Eave drip edges shall extend 0.25 inch (6.4 mm) below sheathing and extend back on the roof a minimum of 2 inches (51 mm). Roofing Inspections. * I count 4 layers of rolled roofing...and probably 2 layers of felt paper. About every twelve inches or foot, a nail should be hammered in. When I started working on homes in the 1970s, installing metal drip edge was entirely the installer’s choice. The first is a classic L-shaped drip edge that is at a 90-degree angle, while the second type of drip edge is shaped like a T. The shape doesn’t really compromise the drip edge’s effectiveness, but the T-shaped drip edge is designed to keep water further away from the house with a deeper flange. if you have enough room I would suggest nailing trough the drip strip into the fascia below the drip edge.If there isn’t enough room then you could go through the drip edge. Small insects or animals can enter your house with that gap. Owens Corning recommend when drip edge is used to have the shingles flush with the drip edge on the rake. If you have a hip roof, trim your drip edge so it overlaps the batting section. The drip edge should be nailed high on the shingles. Answer: I recommend using 1 trim nail in the center and one on every overlap of the ends. Drip Edge Overlap Here we have the south side of the house. 1. This is also referred to as Type C or L-Style Drip Edge. Cut the top piece on the other side 1 inch or more beyond the roof. Should I Overlap Drip Edge? If there is no Fascia it is safer to overhang the shingles by 1” to 1.5” just to make sure the water is directed to the right place. When installing a drip edge, it’s important to consider the process at length. The extended protection that drip edge provides to your roof means fewer repairs and a longer life for your roof. There’s a thread to this topic many years ago. Nail the edges in place. Considering that the drip edge is going to keep water away from the roof, you will have to learn how to install one at some points. Overlap higher gable eave strips over the lower ones by at least 1”. 99% of the time I see it cut close to flush with the metal drip edge… but this latest one overhangs by nearly 1"… does anyone see a problem with this… both the eaves and rake were like this… Looks good Jeff, and it also helps prevent capillary action, water will drip off the shingle instead of running off the fascia. The whole purpose is to direct the water into the gutters. In most of the houses, there is usually a gap between the fascia and the decking. However, if they used an “L” type metal flashing or no flashing at all, then the starter course and the shingles must be extended beyond the perimeter eve and rake edges 1/4 to … While a drip edge is about 2 1/2 inches wide on both sides of the fold, a gutter apron will usually measure 4 inches or more above and below the fold. Hi,if the roofer used an extended drip edge flashing the shingles should be even with the outer edge of the perimeter of the dripedge.