Straw bale passive house St. Donat / Carinthia

Herbert Gruber
Written by Herbert Gruber

Timber frame construction with straw bale insulation layer on the outside. In this house, the floor slab, the walls (except for the south wall) and the roof were insulated with straw bales.

Key data

Province:CarinthiaCity:St. DonatCompletion:2008Type of Construction:straw bale wrappingDesign/ArchitectureBauatelier Schmelz & SalomonClay/Earth plaster:Holz die Sonne ins HausStraw Builder:Holz die Sonne ins HausPossibility to visit:NoPress photos:No
Photocredit:Horst DannerOwner Builders Contribution:Straw bale InfillDeficiencies:When we inspected the house, we could see slight cracks along the tension bands on the façade (lime plaster), as no plaster grid was used. This is always recommended in any case.
U-Value (Wall):W/m2KU-Value (Roof):W/m2KHeating/Ventilation System:Comfort ventilation and heat pumpCategories:Passive House, Projects Austria, Straw Bale Baseplate,
More about this Straw Bale House

Timber frame construction with straw bale insulation layer on the outside. In this house, the floor slab, the walls (except for the south wall) and the roof were insulated with straw bales. The bales were attached to the outside of the construction and stretched down, and then plastered directly with lime plaster. A massive supply tower was built for the building services and wet rooms, which was insulated on the outside with cork. Pictures of the finished house: Herbert Gruber/asbn, Pictures of the construction phase: © Horst Danner

Holzriegelbau mit außen vorgesetzter Strohballen-Dämmebene. Bei diesem Haus wurden die Bodenplatte, die Wände (außer Südwand) und das Dach mit Strohballen gedämmt. Dabei wurden die Ballen außen vor der Konstruktion befestigt und niedergespannt und anschließend mit Kalkputz direkt verputzt. Für Haustechnik und Nassräume wurde ein massiver Versorgungsturm errichtet, der außen mit Kork gedämmt wurde. Bilder vom fertigen Haus: Herbert Gruber/asbn, Bilder von der Bauphase: © Horst Danner

About the author

Herbert Gruber

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.