bousillage, bouzillage

A mixture of clay and Spanish moss or clay and grass; used as a plaster to fill the spaces between structural framing; particularly found in French Vernacular architecture of Louisiana of the early 1700s. A series of wood bars (barreaux), set between the posts, helped to hold the plaster in place. Bousillage, molded into bricks, was also used as infilling between posts; then called briquette-entre-poteaux. Also see pierrotage.
References in periodicals archive ?
Less frequently, these relatively humble dwellings might be covered with bousillage (mud plaster) panels.
maisons poteaux sur solle: houses built upon cypress sills, which were raised well above ground level by cypress, stone, or brick piers, and with a latticework of posts and beams holding between them barreaux and bousillage walls.
We took this melt to derive from a bousillage construction typical for this time period and region.
Chimneys in colonial Natchitoches were built of bousillage and "most houses had but one chimney which was placed on an end wall even though the house had two or three rooms" (Wells 1973: 32-33).
What is distinctive about these wall foundations is that their support posts, situated 90-110cm apart, are too widely spaced to support bousillage as a poteaux en terre structure would.
The central house is constructed of hand-hewn, heart-of-cypress timbers and walls of brick-like bousillage.