Scroll to take a roof apart
Shingles are the first line. Not the only one.
Portland gets most of its rain from October to May. Shingles shed most of it. The layers underneath stop the rest, and most leaks we see start at one of them.
- 01
Architectural shingles. The weather surface.
- 02
Synthetic underlayment. The backup layer.
- 03
Ice and water shield. At eaves, valleys and every penetration.
- 04
Drip edge and flashing. Where most leaks start.
- 05
The roof deck. Checked board by board, replaced where soft.
[The shingle, underlayment and ice-and-water products you install, once Tim confirms.]