Flashing: Prevents water intrusion at roof intersections. Valley: Channels water runoff where roof sections meet. Eave drip: Protects the fascia and prevents water damage. Drip cap: Directs water away from the building. Gutter: Collects and diverts rainwater. Rake and corner: Finishing pieces for edges and corners. Angle base/rat guard: Prevents pests from entering. Track cover: Protects sliding door tracks. Transition flashing: Seals the joint between different roof sections. Inside corner: Finishes inside corner joints. Channel: Provides additional water drainage.