So, it’s best to check your local building codes.ĭoes the drip edge go under or over metal roofing? The drip edge on the eaves goes under the underlayment, thus below the metal roof.ĭoes the drip edge go around the entire roof? Yes. However, the requirements vary from one location to the next. Meanwhile, the rake edge is installed above the felt. Is the drip edge installed under felt? The drip edge is installed under the felt but above the decking material on the eaves. Thus, the drip edge protects the decking too.ĭrip edges are installed on the eaves and rakes of the roof, though the edge flashing installed on the rakes is commonly called rake edges. Damp facia boards can easily transfer the water to the decking, causing rot. Protects roof deck edges: We’ve seen that storm rain can dampen and even damage fascia boards.An edge flashing keeps out most small pests. Keep out small pests: Tiny pests, including ants and insects, love to creep into the gap between the shingles and decking or underlayment, where they establish colonies and damage various roofing components.Fortunately, the edge flashing eliminates this problem. The splashdown and water pooling can cause basement and foundation damage. Protects the basement and foundation: During storms, lots of water miss the gutter, instead splashing to the pavement and walkways below.Thus, it minimizes the risk of roof lift-off. Stabilize the roof during winds and storms: The drip edge’s design deflects winds and storms above and below the roof, protecting the home from full-speed impact.Drip edges shield the fascia board from water damage. Prevent damage to fascia and soffit: Storm water often splashes against an unprotected fascia board, increasing the risk of wet rot and insect infestation.The following are a few reasons you need one The drip edge flashing protects the roof and your home. Nevertheless, it takes advantage of surface tension and gravity to direct roof water away from the fascia into the gutter. You may not notice it if the gutter is already installed. The drip edge is the metal flashing installed over the roof’s edge. You can easily come across smaller and larger units. The overhang depth is typically 2-5 inches, while the flange over the decking is often 2.5 inches. Roof drip edges are typically 10.5 feet long, though 8-foot or shorter edge flashing pieces are easy to come by. Does the size matter? If so, what’s the standard drip edge size, and how do you determine the best size for your roof? We answer these and many other drip edge sizing questions below. Today we want to discuss drip edge sizes. Nearly every roof has one, though it’s a choice rather than a code requirement. Drip edges are critical for directing rainwater away from the fascia board and into the gutter.
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