How should the drip edge be installed on the rakes versus the eaves?

The correct approach for installing the drip edge involves specific positioning for the eaves and rakes to ensure optimal water drainage and protection of the roofing system. The drip edge should be installed under the roofing paper on the rakes and over the roofing paper at the eaves.

By placing the drip edge under the roofing paper on the rakes, it helps direct water that might run down the roof’s slope into the gutters without letting it run behind the siding or fascia, which could lead to water damage. This also prevents water from being trapped under the roofing material, which could cause premature deterioration.

On the eaves, the drip edge is installed over the roofing paper. This setup allows any water that comes off the roof to flow directly into the gutters. If the drip edge were placed under the roofing paper at the eaves, water could potentially run behind it and cause leaks or damage to the underlying structures.

Thus, the specific order of installation—under the roofing paper for rakes and over at the eaves—ensures the roofing system performs effectively and maintains its integrity against weather elements.