1.   And, it sounds as if the drip edge was not nailed very well or with toofew nails when it was installed.

2.   As for the rake board, the decay may be due to an inadequate drip edge.

3.   A drip edge on the rake will finish off the edge of the roof neatly.

4.   A. The band is mostly decorative, but it also acts as a drip edge to prevent just what you are concerned about.

5.   But to your final question, you could drive a few nails into the flange to hold the drip edge in place.

6.   Could I nail a few nails into the vertical flange of the drip edge on the fascia board to keep it from moving?

7.   Cut a slot at the top of the fascia board, just under the drip edge.

8.   Either way is good, but be sure there is an aluminum drip edge on all edges of the roof.

9.   For a finishing touch, install a drip edge along the rake, which is the side of the roof.

10.   I am doubling the first course, to create a flared drip edge.