How should a drip edge be installed at the eave?

How should a drip edge be installed at the eave?

• A. Over the underlayment
• B. Beneath the underlayment
• C. On top of shingles
• D. Under the siding

Answer: (B)

Installing a drip edge at the eave beneath the underlayment is the correct approach because it ensures proper water drainage and protects the roof structure. The drip edge directs water runoff away from the fascia and into the gutter system, preventing potential water damage to the roofing materials and underlying structures. By placing the drip edge beneath the underlayment, it creates a barrier that minimizes the risk of water seeping under the shingles. This configuration helps to channel water towards the fully installed gutters while also maintaining the integrity of the roof system by ensuring all layers are installed in a way that adheres to roofing best practices. Additionally, having the drip edge underneath helps prevent wind-driven rain from getting underneath the shingles, which could otherwise compromise the roof's waterproofing capabilities. This method aligns with standard roofing installation techniques, providing optimal protection for the roof system.

Installing a drip edge at the eave beneath the underlayment is the correct approach because it ensures proper water drainage and protects the roof structure. The drip edge directs water runoff away from the fascia and into the gutter system, preventing potential water damage to the roofing materials and underlying structures.

By placing the drip edge beneath the underlayment, it creates a barrier that minimizes the risk of water seeping under the shingles. This configuration helps to channel water towards the fully installed gutters while also maintaining the integrity of the roof system by ensuring all layers are installed in a way that adheres to roofing best practices.

Additionally, having the drip edge underneath helps prevent wind-driven rain from getting underneath the shingles, which could otherwise compromise the roof's waterproofing capabilities. This method aligns with standard roofing installation techniques, providing optimal protection for the roof system.