Certified Passivehouse Component for Benediktinierabtei Plankstetten

Written by esba

Manufacturer: Benediktinerabtei Plankstetten im Interreg-Projekt UP STRAW

Category: Construction 
Construction type: Light (Straw) 
Window: The certification was done with the timber window smartwin compact (1). In addition, the calculations were carried out for an oak window with triple glazing (2). 
Airtightness: The airtight layer of the walls is formed by the 3-layer clay plaster, in the 2nd layer of which a reinforcement fabric is incorporated. The connection to the windows is made by plasterable adhesive tapes. The airtight layer of the roof is a membrane that protrudes towards the walls and is plastered in. 

Illustration: The thermal insulation of the system consists of straw bales, which are lined with clay plaster on the inside and lime plaster on the outside. The bales are fitted into a timber construction (60/340), e = 1.0 m. The construction rests on a floor slab that is insulated with cellulose on the inside. The roof is also insulated with straw bales. A clay board closed off to the room, and a soft fibreboard closed to the outside. In addition, a variant with cellulose insulation was considered. 

Climate zones: Cool, temperate
Thermal bridges

Author: Passive House Institute

Link: https://bau-mit-stroh.de/wp-content/uploads/2020/12/Waermebrueckentakalog-fuer-Strohballenhaeuser-2020.pdf

About the author


The European Straw Building Association is an independent European association, devoid of any profit making motive. The object of the Association is to promote and develop the use of straw, as a sustainable way of building in all the senses of the term “sustainable”: renewable, ecological, healthy, energy and climate efficient, social and economic.
The Association is a federation composed of organisations and people particularly concerned with the use of straw in buildings.