Barn at Cefn Isa

Rubble with slate roof and rubble gable parapets with mortar capping. Opposed openings, now blocked; W elevation has offset door in blocked opening, window to right beneath eaves and a series of ventilation slits. To the right is a substantial rubble buttress. E elevation has offset door in blocked opening and a series of ventilation slits. Breaks in the masonry visible at gable ends and in the walls where they have been raised. Gable end to road has a rubble plinth.

5 bays with earlier C20 half-height partition at N end. From the S end: bay 1 has simple tie-beam truss with angle struts, typical of the area; bay 2 has a paired truss, the southernmost as bay 1 perhaps introduced to strengthen the roof at this point. The northernmost truss is a raised cruck with replaced E blade with tie-beam and collar which has been altered with the introduction of a crudely made collar and king post. Bay 3 has an upper cruck with collar and tie-beam, bay 4 has another simple tie-beam truss as before. Purlins include altered and replaced members but some are scarfed.