Thermal straw bale renovation of a farmhouse in Allgäu, Bavaria

Written by Herbert Gruber

This farmhouse in Bavaria was sheathed with straw bales on the outside, plastered directly (on hare trellis) at ground level, and clad with wooden shingles on board cladding on the 1st floor and gable.

Key data

Completion:2006Type of Construction:straw bale wrappingDesign/ArchitectureBestandStraw Builder:Frank BöttingerPossibility to visit:NoPress photos:No
Owner Builders Contribution:Thermal renovation with straw balesCustomer satisfaction:The builder Frank Böttinger writes: Two years ago I insulated the façade of my older farmhouse with straw. Your book was a great source of information for me (until then I had no idea whether it made sense to use straw bale insulation). Since then I have been thrilled about the insulating effect and the design possibilities of the outer façade!
U-Value (Wall):W/m2KU-Value (Roof):W/m2KCategories:Projects Germany,
More about this Straw Bale House
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This farmhouse in Bavaria was sheathed with straw bales on the outside, plastered directly (on hare trellis) at ground level, and clad with wooden shingles on board cladding on the 1st floor and gable.
For this purpose, OSB boxes were fixed around the windows and an auxiliary scaffolding was mounted at the distance of the bales.
The bales stand on a concrete foundation strip with horizontal insulation (tar paper), a hare mesh (fine-meshed wire) was used as a plaster base. After the first layer of plaster, PolyesterGittex was applied to prevent cracking.

Bauherr: Frank Böttinger
Baukosten: Strohballen ca 250 €
Gesamtkosten: ca. 4000 € ( inkl. Schindeln )
Baubeginn: August 2006
Bauzeit: ca. 4 Monate
Baukosten: Strohballen ca 250 €
Gesamtkosten: ca. 4000 € ( inkl. Schindeln )
Baubeginn: August 2006
Bauzeit: ca. 4 Monate”
Baukosten: Strohballen ca 250 €
Gesamtkosten: ca. 4000 € ( inkl. Schindeln )
Baubeginn: August 2006
Bauzeit: ca. 4 Monate

About the author

Herbert Gruber

Herbert is author of the book "Neues Bauen mit Stroh in Europa" (New Building with Straw in Europe), head of the austrian strawbale network ASBN and partner in the Leonardo-project "STEP" (Strawbale Training for European Professionals) and the Erasmus project "BuildStraw Pro" (a project to get formal national recognition of the training) and "Make your City Smart". As a collector he documents European straw bale buildings since 1999 on his website (database, german), in lectures, workshops and books.