In French Vernacular architecture of Louisiana, a relatively inexpensive, porous brick that was once used to fill the spaces between upright posts and diagonal braces in a home of timber-framed construction; often found in poteaux-en-terre houses; usually the entire brick-filled exterior surface was finished with a coat of lime plaster to protect the surface; then often covered with clapboard. Many twostory town houses and houses of well-to-do planters had basement walls of brick and upper walls of briquette- entre-poteaux. Also see bousillage