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Rainwater Harvesting with Xlam Structures in Modular Living Spaces

Authors:
Angela Cuman, Emma Battistin, Laura Palazzi, Maja Peirano
Rainwater Harvesting with Xlam Structures in Modular Living Spaces
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Equipped with a rainwater harvesting system and constructed using an Xlam framework, these modular living spaces provide an environmentally sensitive solution adaptable to diverse climatic conditions.
5 key facts about this project
01
Modular units designed for easy rearrangement to fit site-specific conditions.
02
Integrated rainwater harvesting system enhances sustainability and self-sufficiency.
03
Constructed with an efficient Xlam framework for improved structural integrity.
04
Facades clad in wooden slats contribute to thermal performance and aesthetic appeal.
05
Solar greenhouse promotes biodiversity and provides natural cooling for living spaces.

IMPLUVIUM WOODEN offers a modular housing solution designed for both Mediterranean and Alpine climates. The project focuses on flexibility and sustainability, featuring nine distinct modular units. These units adapt to various living needs and promote a practical approach to construction and habitation. The design seeks to create comfortable living spaces through careful planning and environmental consideration.

Modularity and Efficiency

The design features nine modular units, most of which are dimensioned at 3x4x3.3 meters. This uniform size allows for various arrangements, accommodating the unique preferences of residents. The construction process is methodical, including important stages such as excavation, tank insertion, and the positioning of a concrete slab foundation. These steps ensure a smooth building experience and expedite the transition to livable spaces.

Sustainable Design Features

Sustainability is a key aspect of the design. Each housing unit incorporates photovoltaic panels, generating energy to reduce reliance on external methods. Additionally, there is a solar greenhouse that supports natural cooling and enhances local biodiversity. The rainwater harvesting system comprises components such as impluviums and UV filters, emphasizing the overall commitment to efficient water management.

Material and Construction Details

Construction relies on a lightweight Xlam framework that provides strength and durability. The facade is clad with wooden slats, which adds visual appeal and improves thermal performance. Various insulation types contribute to maintaining a comfortable indoor environment. A breathable exterior plaster is applied to enhance resilience against changing weather conditions, ensuring longevity.

Final Design Detail

The arrangement of the modular units allows for the creation of community spaces that foster interaction among residents. By designing neighborhoods that blend individual living areas with shared environments, the proposal encourages a sense of belonging while respecting personal privacy. Ultimately, the design reflects a modern approach to housing that considers both individual and communal needs.

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The Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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