mid 15th century and are in the Perpendicular style. The roofing is partly in matching stone slabs, and partly in slate. The nave has a low clerestory, and before the 1865 restoration cat-slide roof pitches covered nave and aisles in single slopes so hiding the clerestory. The west front of the nave is all in ashlar stonework, in contrast with the rubble used elsewhere, and dates to around 1300. The doorway is embellished with two orders of ball flower, and above is a large four-light window in the Decorated Gothic style flanked by a pair of empty statue niches. The smaller window in the end of the north aisle, to the left, is in the Perpendicular style of about 1450 and was installed inside-out by mistake. There are four other large windows in the main body of the church, and the fenestration is otherwise simple and rather sparse. The south transept has a hexagonal rose window of seven lights. The east wall has a five-light Perpendicular window with simple tracery and a pair of portrait busts as hood moulding stops (these are of the 1865 restoration). The north transept has a two-light window topped by a trefoil, and the north aisle has a four-light Perpendicular window of more ornate design than the east window. The large south porch has a sundial over its portal. The actual door is decorated, and is dated 1712. Tower The oversized five-storey tower is very unusual. It was added to the north-west corner around 1330–40, with a spire that is the second-tallest in the county at . On the plan it is at an angle, which is odd and not easily explicable, and is thought to have doubled up as a fortified peel tower against Welsh raids. This is because the entrance doorway (off the north aisle) was fitted with a drawbar to enable people to barricade themselves inside. The walls are blank, grim and virtually windowless, and each face is flanked with projecting wall strips meeting at diagonal stepped buttresses at the corners. The first storey has a recess containing blind three-light window tracery in its north, west and east walls -only the central light of these is glazed. The flanking lights used to contain small statues. The top of the tower has a set of four gabled and crocketed pinnacles apparently modelled on those of the tower of Hereford Cathedral. The south face