Sawn & split chestnut lath

We specialise in the production of both split and sawn Chestnut lath.

Before this century building techniques and materials were very different from those employed today. Traditional properties need to "breathe" to allow moisture inherent in a solid wall construction without a damp proof course to evaporate from the external stonework or render. Many old buildings are constructed from materials such as brick, cob and stone which are relatively porous and often of lower strength. Lime mortars were normally used for bedding and plastering. Lime mortar is a relatively softer mortar and therefore it is able to withstand a certain amount of movement (without cracking) that comes with settlement and seasonal changes in ground conditions. Lime mortar is porous and allows moisture to evaporate, helping to keep a building free of damp.

Lath are thin strips of wood used as a key for the lime plaster. When the plaster has failed the lath can be clearly seen. Sometimes the laths need replacing because Lath can deteriorate over the years due to insect infestation or rot, especially if modern less breathable plasters or paints have been applied.

Chestnut is one of the most popular choices of timber for the lath. Split lath is hand split along the grain using traditional tools and provides extra key on the surface of the lath so it is best for repairing lathed ceilings. Sawn lath is straighter with a less textured surface than split Lath and is best for repairing lathed walls.