How does hempcrete “breathe”? 
The secret to healthy and durable walls

Is it possible to erect a building that lives by the rhythm of nature and responds to changing environmental conditions? Lime-Concrete composite seems to answer this question with a claim. This remarkable building material not only insulates and protects, but also breathes - literally and figuratively. This ability to “breathe” makes hempcrete buildings healthier, more comfortable and more durable than those made of traditional materials.

The porous structure of the lime and hemp composite is the key to its unique properties. Imagine a network of millions of tiny channels through which air flows, as if through a densely woven but vapor-permeable material. Thanks to this structure, hempcrete walls are able to absorb excess moisture from the air and then give it back when the air becomes dry. This natural phenomenon maintains a stable microclimate inside the building, eliminating the problem of excess moisture, mold and mildew.

 

Hempcrete ability to regulate humidity makes buildings made of this material particularly suitable for people suffering from allergies, asthma or other respiratory problems. The interiors maintain optimal humidity and are free of pathogens, which directly improves air quality. Imagine a home where the air is always fresh and healthy, and the problem of foggy windows or damp corners ceases to exist.

 

Breathable lime-concrete composite walls have another invaluable advantage: they can effectively counter the problem of condensation in the building structure. Traditional materials often retain water, which leads to gradual degradation of the structure. Hempcrete, thanks to its vapor permeability, transports moisture to the outside, preventing damage and extending the life of the building. It's like a natural ventilation system built into the walls, which works continuously to ensure healthy and safe living conditions.

 

What's more, the breathable nature of hempcrete makes it an ideal material for the changeable Polish weather. Imagine the winter cold, when the air is dry and frigid, and the building's interiors need to maintain adequate humidity to keep occupants comfortable. In summer, when the temperature rises and the air is humid, the composite absorbs excess moisture, cooling the interiors naturally. Such adaptability makes hempcrete houses a harmonious combination of modern technology and natural processes.

 

However, we must not forget the impact of breathable walls on the construction and use of buildings themselves. Hempcrete makes it possible to dispense with some of the traditional layers of the partition, such as vapor barrier film or Styrofoam. The material's natural permeability eliminates the need for artificial barriers, further reducing costs and simplifying the construction process. The result? A healthy building that breathes in the rhythm of nature. In addition to the health and functional advantages, it is worth mentioning that breathable walls have a huge impact on the durability of the building. The lime-concrete composite, uses moisture for the natural process of carbonation, creating a true lime rock over time. Lime also has the remarkable ability to self-heal micro-cracks, should they form during the first years of a building's settlement on the ground. It creates a house that retains its original appearance for years, without the need for constant repairs and renovations.

 

While one might assume that breathable walls could cause heat loss, the reality is quite different. Thanks to its porous structure and microscopic air channels with a diameter of 5-50 micrometers, hempcrete effectively impedes the flow of heat through the walls, allowing the building to maintain a stable temperature. This natural phenomenon of thermal insulation combined with moisture regulation makes composite buildings both energy efficient and comfortable for occupants.

 

In conclusion, breathable lime-concrete composite walls are not a myth, but an innovative solution that combines a modern approach to construction with the wisdom of nature. It is a material that cares not only for the health and comfort of the residents, but also for the health of the building and the environment. Choosing ZEROBLOCK blocks, you choose not only quality and durability, but also harmony with the natural rhythm of life.

29 January 2025

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