Check the listing for details. 4 ft. Polycarbonate Ridge Cap Flashing, White Opal. Condition: New. Listed at 33.99 USD. Color and profile also match SUNTUF to keep the look consistent. Flashing Type. Flashing Angle. Designed specifically to cap the peak of a regular A-style roof. Made of virtually unbreakable impact-resistant polycarbonate for durability.