Drip edge flashing is a thin metal strip installed along the edges (eaves and rakes) of a roof. Its angled, overhanging profile directs rainwater away from the fascia and into the gutter, preventing water from wicking back under the shingles and rotting the wood decking, fascia, and soffit. Drip edge is a small, inexpensive component that protects the most leak-prone part of a roof, and it is required by most modern building codes.
Roofing Component Guide
Drip Edge Flashing: Types, Installation & Cost
Drip edge is the small metal flashing along your roof's edges that quietly prevents thousands of dollars in fascia, soffit, and decking rot. Here is what it is, the C/D/F profiles, what code requires, and what it costs.
What Is Drip Edge Flashing?
Drip edge flashing is a thin, angled metal strip installed along the eaves and rake edges of a roof. Its overhanging lip directs rainwater away from the fascia board and into the gutter, stopping water from wicking back under the shingle edge where it would rot the decking, fascia, and soffit over time.
It is one of the cheapest components on a roof and one of the most important. In Charlotte's 44-inches-a-year rainfall, a roof edge without proper drip edge is a slow leak waiting to happen — which is why building code now requires it on all asphalt shingle roofs.
Types of Drip Edge (C, D & F Profiles)
Type C (L-Style)
Simple L-shaped bend. Common on older roofs; basic edge protection.
Type D (T-Style)
Wider profile with a lower flange that kicks water further from the fascia — the best performer.
Type F (Gutter Apron)
Long leading edge for eaves and over-shingle installs; bridges the roof-to-gutter gap.
Code Requirements
The IRC (R905.2.8.5), which North Carolina follows, requires drip edge at eaves and rakes on asphalt shingle roofs, mechanically fastened with a minimum 2-inch lap. A roof without proper drip edge can fail inspection and may void the shingle manufacturer warranty.
Drip Edge Cost
Drip edge runs $1-$3 per linear foot for materials and about $2-$5 per linear foot installed. On a typical Charlotte home (150-200 linear feet of edge) that is roughly $300-$1,000 — and it is almost always included in a complete roof replacement quote.
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FAQ
Drip Edge Flashing FAQ
Common questions about roof drip edge.
There are three main drip edge profiles defined by their shape. Type C (or "L-style") is a simple L-shaped bend used on many older roofs. Type D (or "T-style") has a wider profile with a lower flange that kicks water further from the fascia — it is the best performer. Type F (or "extended/gutter apron") has a long leading edge designed to be installed over existing shingles or at the eave above a gutter. Most new roofs use Type D or Type C metal in aluminum or galvanized steel.
Yes. The International Residential Code (IRC R905.2.8.5), which North Carolina follows, requires drip edge at eaves and rake edges on asphalt shingle roofs. Drip edge must be mechanically fastened and lap a minimum of 2 inches. A roof installed without proper drip edge is not code-compliant and can fail inspection — and may not be fully covered by the shingle manufacturer warranty.
Drip edge flashing costs $1 to $3 per linear foot for materials, or roughly $2 to $5 per linear foot installed when part of a roof replacement. For a typical Charlotte home with 150-200 linear feet of roof edge, that adds about $300-$1,000 to a roof project. When installed on its own as a repair or upgrade, expect a small minimum service charge. Drip edge is almost always included in a complete roof replacement quote from Best Roofing Now.
Both are edge-metal flashings, but they go in different places. Drip edge (Type C/D) is installed at both the eaves and the rake (sloped) edges and directs water off the roof. A gutter apron (Type F) is a longer flashing used specifically at the eave to bridge the gap between the roof deck and the gutter, ensuring water that runs off the shingles lands inside the gutter rather than behind it. Many quality installs use a gutter apron at the eaves and standard drip edge at the rakes.
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