Barn About 40 Metres South East Of Tremaer

Barn. The barn likely originated in the 14th century, with evidence of medieval rebuilding and 20th-century alterations to the first floor at the east end. It is constructed of small stone rubble to the west end and south side, with larger stone rubble to the north side. The westernmost four bays have a slate roof, half-hipped at the west end, while the upper part of the east bay walling was rebuilt in the 20th century using concrete block and a corrugated asbestos monopitch roof. Originally a large tithe barn, four circa 14th-century trusses survive at the west end. Changes in plan to the south side and in the first-floor level suggest medieval rebuilding.

The barn is two storeys high. A medieval entrance exists on the north side, beneath a massive timber lintel. Steps on the north side lead to an entrance to the 19th-century loft. A single-storey lean-to addition adjoins the west end. Four pigeon holes are visible at the west end, and ventilation slits, mostly blocked, are present on the south side.

The four circa 14th-century trusses comprise two main trusses with intermediate trusses between them, amounting to four in total. The main trusses are arch-braced, with upper cruck principals, one of which was truncated when the 19th-century loft entrance was inserted. Slightly cambered collars are mortised into the principals, with wind braces also mortised into the principals. The principals feature fillet mouldings, and the wind braces are narrower than the principals by the width of the fillet. There are two tiers of purlins, and the construction method for these is difficult to ascertain due to repairs. The square-set ridge rests on a yoke. The intermediate trusses each consist of two principals, trapping the lower purlins above a short strut. The upper purlins are clasped between queen struts, collar, and outer principal, and are notched into the outer principal and the queen strut. The ridge rests on a notched yoke. The floor, which may be a later medieval insertion, is complete throughout the barn's length, with a change in level to the east of the four-bay western section, consisting of massive, largely unhewn cross beams and short joists laid over them. The joists and crossbeams are spaced closer together at the west end. Two rolled steel joists (RSJs) have been inserted.

According to local tradition, the barn was a tithe barn for Launceston Priory. It is considered an outstanding, although incomplete, survival of a 14th-century roof and a building type rare in Cornwall. Another known Cornish example of a tithe barn is at Cargoll, near Newquay.