How should a drip edge be installed at the eave?

How should a drip edge be installed at the eave?

• A. under the sheathing
• B. over the starter strip
• C. directly to the underlayment
• D. beneath the underlayment

Answer: (D)

Water management at the eave depends on the layering order of the drip edge and the underlayment. The drip edge should be placed beneath the underlayment so that when the underlayment is applied, it overlaps and covers the edge. This creates a smooth, protected edge that directs water into the gutter and prevents moisture from seeping behind the edge into the roof deck or fascia. Installing the drip edge before the underlayment helps seal the eave and maintain a durable, water-shedding surface.

Water management at the eave depends on the layering order of the drip edge and the underlayment. The drip edge should be placed beneath the underlayment so that when the underlayment is applied, it overlaps and covers the edge. This creates a smooth, protected edge that directs water into the gutter and prevents moisture from seeping behind the edge into the roof deck or fascia. Installing the drip edge before the underlayment helps seal the eave and maintain a durable, water-shedding surface.