Roskennals Mill

Roskennals Mill is a watermill, likely built in the 18th century and raised in the 19th century. It is constructed of granite rubble with granite dressings and features a grouted scantle slate roof on two levels with gable ends. A brick chimney is located at the left-hand end. The building has an approximately rectangular plan, with the left part of the front wall set back slightly. It is built into a bank that carries the mill leat on the right side and has a circa late 19th-century overshot waterwheel at the middle of the rear, along with machinery from the late 19th and 20th centuries.

The exterior consists of three storeys and presents an irregular northwest front with a central doorway and another former doorway that has been fitted with a window on the lower part of the front, set back on the left. There is some evidence of altered openings, and old or original small window openings are present on each floor to the right of the principal doorway. Pigeon holes are located high up on the left-hand side. The left-hand end features a window on each floor and pigeon holes beneath the gable window, while the right-hand end has a central loading doorway to the first floor with a window above it. The rear includes a small opening, possibly for the shaft of the former waterwheel, on the left with a window above, and a blocked window opening to the right of the wheel on the first floor.

The circa late 19th-century waterwheel is complete, featuring a cast-iron hub, 20th-century oak spokes, cast-iron segments, and wooden buckets. Inside, the floors are likely from the same period as the older machinery, around 1890, although parts of the roof structure are older. The ground floor houses machinery with iron wheels and apple wood cogs that drive a belt to a roller mill on the top floor and a pair of stones on the first floor. There is a coupling after the pit-wheel that can be disengaged to stop all machinery, and a sluice that can be opened.