Hempcrete
Hempcrete is a mix of the woody inner core of the hemp plant called hurd, water and a lime based binder; bounded together they create a building material with a range of desirable thermal performance, structural qualities, fire resistance and acoustic properties that make for an excellent building insulation material.
Frequently asked questions
Is Hempcrete Suitable for All Climates?
Yes, hempcrete adapts well to various climates. Providing a thermal barrier from cold temperatures, and a heat shield in warmer climates, it is arguably the best building material on the planet
What is the Lifespan of a Hempcrete Building?
Hempcrete structures have a long lifespan (~100 years), and over time they petrify, becoming even more durable and resilient to natural disasters.
Is Hempcrete Fire-Resistant? What's the Science behind Why?
Yes, hempcrete has excellent fire-resistant properties, providing a safe and secure building material. During combustion, the organic hemp fibers release water vapor, absorbing heat and limiting the temperature rise. The lime undergoes a process called calcination, converting to calcium oxide and releasing additional water. This endothermic reaction further contributes to heat absorption, creating a protective layer that shields the inner core from flames, CO2 is also generated, which is a natural fire suppressant. The combination of these factors results in a material that resists ignition and significantly retards the spread of fire.
How does Hempcrete Improve Indoor Air Quality?
Hempcrete's breathable walls contribute to indoor air quality through a process known as vapor permeability. Hempcrete allows water vapor to pass through its structure, preventing moisture buildup within walls and regulating humidity levels, which reduces the risk of mold and mildew growth. Additionally, the porous nature of hempcrete allows for the exchange of air, facilitating ventilation and reducing the concentration of indoor pollutants.
How does Hempcrete Contribute to Waste Reduction?
Hempcrete is produced from renewable resources, and its construction generates minimal waste, reducing environmental impact. Often, the hemp fibers utilized would otherwise be a waste product after harvesting the hemp seeds.
Hempcrete also eliminates the need for many materials used in standard construction (drywall, insulation, vapour barrier, vinyl siding...). This results in significant waste reduction, and at the same time, reduces toxins in the building itself.
What is the History of Hempcrete?
Hempcrete, a blend of hemp fibers, lime-based binders, and water, has a rich history rooted in sustainable construction practices. Its origins can be traced back to ancient civilizations, where hemp-based materials were used for various purposes. In the 20th century, pioneers in sustainable architecture began experimenting with hempcrete as an eco-friendly alternative to conventional building materials. Over time, its popularity has grown, with builders, architects, and researchers recognizing its exceptional properties, sustainability, and potential to revolutionize the construction industry.
The significance of hempcrete: Hope for humanity
Hempcrete offers exceptional durability and sustainability, while providing insulative protection from the elements, making it a compelling choice for those who wish to build in harmony with nature.
Offering impressive acoustic properties, it promises a tranquil living environment. The natural density and porous structure of hempcrete absorbs and dampens sound waves.
It's a blend of hemp fibers, lime-based binder and water, and it has the power to transform the construction industry. Hempcrete is not just a building material; it's a symbol of change.
Health and Indoor Air Quality: Breathe Easier at Home
Temperature and Moisture Regulation: Year-Round Comfort
Fire-Resistant, Mold-Resistant & Pest-Resistant: Peace of Mind