SESSION II
SUSTAINABLE ARCHITECTURE
April 15, 2025 – 5:20 pm / 5:40 pm
STRAW BALE CONSTRUCTIONS: SUSTAINABLE INNOVATION IN ARCHITECTURE
ABSTRACT:
Straw bale constructions represent an innovative sustainable solution in contemporary architecture, offering significant advantages in terms of fast implementation, thermal insulation, durability, and reduced carbon emissions. This technique, combining tradition and modernity, is particularly suited for low-environmental-impact buildings. The first straw houses were built in the late 19th century in the United States.
Two primary construction methodologies are used: the load-bearing system, where straw bales directly support the building’s weight, and the non-load-bearing system, where a wooden frame supports the structure and the bales serve as infill and thermal insulation. The bales are stacked in staggered courses and stabilized with stakes to resist horizontal forces like wind and seismic activity.
Straw bale constructions provide high indoor comfort due to their ability to regulate humidity and temperature. They are treated with boron salts or other materials to prevent insect infestation, and their extreme compaction makes them self-extinguishing and fire-resistant. The use of a breathable lime or earth plaster finish allows for humidity regulation and weather resistance.
Utilizing straw bales as infill in wooden structures facilitates obtaining permits and is perfectly suited for emergency housing due to rapid execution, excellent thermal comfort compared to containers, and seismic resistance.
Thus, straw bale constructions represent a promising option for sustainable architecture, combining renewable materials with innovative technologies offering excellent performance.
MADDALENA FERRARESI – BIOGRAPHY
Maddalena Ferraresi is an architect who has led the Archesis studio in Milan since 1994. She pioneered an innovative methodology involving stakeholders in both design and implementation phases. Specializing in bioarchitecture, Ferraresi practices participatory design and self-construction. As an expert in advanced energy design technologies, she continuously researches and experiments with by using natural materials and bioclimatic design. Ferraresi trains professionals in advanced natural techniques and manages construction sites for experimental housing projects and public works, overseeing computational execution and site management. Additionally, she engages in artistic activities, directing and creating site-specific installations and performances.