Bousillage (bouzillage,
[McDermott, John Francis. "bousillage, bouzillage, n. m.". ''A Glossary of Mississippi Valley French, 1673-1850''. St. Louis: , 1941. 34. Print.] bousille, bouzille) is a mixture of clay and grass or other fibrous substances used as the infill (chinking) between the timbers of a half-timbered building. This material was commonly used by 18th-century French colonial settlers in the historical
New France region of the United States and is similar to the material
cob and
adobe
Adobe ( ; ) is a building material made from earth and organic materials. is Spanish for ''mudbrick''. In some English-speaking regions of Spanish heritage, such as the Southwestern United States, the term is used to refer to any kind of e ...
. In French ''torchis'' has the same meaning or the meaning of a loaf of this material.
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Discussion
''Bousillage'' in south Louisiana is a mixture of clay earth and retted Spanish moss, but in the Upper Mississippi River Valley and Canada contains straw, grass or hair,[ used to fill in the panels in ]poteaux-sur-sol
Poteaux-sur-sol ("posts on a sill" – sol is also spelled sole and solle) is a style of timber framing in which relatively closely spaced posts rest on a timber sill. Poteaux-en-terre and pieux-en-terre are similar, but the closely spaced posts ...
, poteaux-en-terre, and half-timbered
Timber framing (german: Holzfachwerk) and "post-and-beam" construction are traditional methods of building with heavy timbers, creating structures using squared-off and carefully fitted and joined timbers with joints secured by large wooden ...
framing (called ''colombage'' in French). This was a technique used in French Louisiana by colonists from the 18th to 19th centuries. In France the framing was typically in-filled between the post with brick (briquette-entre-poteaux), stone and mud ( pierrotage) or bousillage. There was no stone in south Louisiana, and bricks were not being made during early colonial times. The colonist picked up on a technique that the Native Americans were using to build their wattle and daub structures, and that was heavy clay soil and retted Spanish moss as the binder. Split sticks or staves, known as ''barreaux'', ''rabbits'' or ''batons'' were used as rungs between the upright post. They were shaped to fit at an angle and hammered into place without the use of nails.
Bousillage is made by layering a ''taché'' (hole in the ground) with mud and moss and adding water. Then ''tacherons'' (barefoot men) worked the mixture into a mortar. ''Torchis'' (bousillage shaped like a bread dough loaf) are hung over the barreaux being compacted, one placed next to another. The finished wall would have been either lime washed or covered with lime plaster. The plaster contains animal hair as a binder.[Louisiana Vernacular Gumbo, by Edward Cazayoux and A Manual for the Environmental & Climatic Responsive Restoration & Renovation of Older Houses in Louisiana, by Edward Cazayoux]
Gallery of structures using bousillage
Image:La_Maison_de_Guibourd-Valle--1808.jpg, La Maison de Guibourd Historic House in Ste. Genevieve, Missouri is an example of ''poteaux-sur-solle
Poteaux-sur-sol ("posts on a sill" – sol is also spelled sole and solle) is a style of timber framing in which relatively closely spaced posts rest on a timber sill. Poteaux-en-terre and pieux-en-terre are similar, but the closely spaced posts ...
'' construction.
Image:Poteaux-sur-Solle Model.jpg, A model of the Maison Bolduc
The Louis Bolduc House, also known as Maison Bolduc, is a historic house museum at 123 South Main Street in Ste. Geneviève, Missouri. It is an example of '' poteaux sur solle'' ("posts-on-sill") construction, and is located in the first Europe ...
showing poteaux-sur-solle
Poteaux-sur-sol ("posts on a sill" – sol is also spelled sole and solle) is a style of timber framing in which relatively closely spaced posts rest on a timber sill. Poteaux-en-terre and pieux-en-terre are similar, but the closely spaced posts ...
construction.
Image:Maison Bolduc.jpg, Maison Bolduc
The Louis Bolduc House, also known as Maison Bolduc, is a historic house museum at 123 South Main Street in Ste. Geneviève, Missouri. It is an example of '' poteaux sur solle'' ("posts-on-sill") construction, and is located in the first Europe ...
is an example of poteaux-sur-solle
Poteaux-sur-sol ("posts on a sill" – sol is also spelled sole and solle) is a style of timber framing in which relatively closely spaced posts rest on a timber sill. Poteaux-en-terre and pieux-en-terre are similar, but the closely spaced posts ...
construction.
Image:Durand Cabin- poteaux-sur-solle & pierrotage.jpg, The Durand Cabin is an example of poteaux-sur-solle
Poteaux-sur-sol ("posts on a sill" – sol is also spelled sole and solle) is a style of timber framing in which relatively closely spaced posts rest on a timber sill. Poteaux-en-terre and pieux-en-terre are similar, but the closely spaced posts ...
construction.
Image:Photograph of Bouzillage in the Amoureaux House in Ste Genevieve MO.jpg, An example of bousillage in the Amoureux House in Ste. Genevieve, Missouri
Image:Kent House, Alexandria, LA, closeup of building IMG 4211.JPG, Kent Plantation House
Kent Plantation House is the oldest standing structure in Central Louisiana. Listed since 1971 in the National Register of Historic Places, Kent House is located in Alexandria in Rapides Parish. The plantation house is a representation of south ...
in Alexandria, Louisiana, constructed in 1800, is built partly of bousillage.
See also
*La Maison de Guibourd
The Guibourd House, also known as La Maison de Guibourd, is an example of ''poteaux-sur-solle'' (vertical post on sill or foundation) sealed with '' bouzillage'' (usually a mixture of clay and grass) construction. The structure was built around 1 ...
* Ste. Genevieve, Missouri
* New France
* French colonization of the Americas
* French architecture
*Poteaux-en-terre
A post in ground construction, also called earthfast or hole-set posts, is a type of construction in which vertical, roof-bearing timbers, called posts, are in direct contact with the ground. They may be placed into excavated postholes, driven ...
References
External links
Video about what bousillage is and how to make and use it.
{{commons category, Bousillage
French-Canadian culture in the United States
French-American culture in Missouri
Missouri culture
Soil-based building materials