Few plants have accompanied humanity as closely as cannabis. Used for millennia to make textiles, paper, and medicines, it has quietly shaped everyday life and built environments alike. Hemp, its non-psychoactive variety, is one of the earliest cultivated crops and a material of remarkable versatility: strong, breathable, and renewable. From ropes and sails to insulation and biocomposites, hemp’s fibers have been helping humans build for thousands of years.

The main role of architecture is to create structures that protect us from the environment and create spaces that are safe and comfortable for all types of needs and activities. By providing shelter, architecture also shapes the way people interact with their surroundings. Building technologies of the past rarely managed, however, to create a complete separation between us and the outside world.

While impermeability was a desired outcome, the porous building materials available always allowed some water, wind, or outside particles to leak into the interior spaces. In contrast, modern technologies now allow for almost completely impermeable building envelopes, allowing for complete separation between indoors and outdoors, thus relying on engineered systems to regulate temperature, airflow, or humidity. This article explores the differences between these two contrasting approaches, exploring how building facades are equipped to regulate indoor comfort and its environmental impact.

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