好建议， will ask roofer to check next Monday

来源: 于 2025-02-08 15:18:02 [旧帖] [给我悄悄话] 本文已被阅读：次

This roofer said most likely due to the drip edge (metal flashing at the bottom edge of roof).

 

I googled. 

https://www.youtube.com/watch?v=0xG2DojmdUk&t=5s