The use of hemp blocks in sustainable construction is transforming the building sector thanks to their outstanding insulating, breathable and low-environmental-impact properties. This innovative material is suited to numerous applications, improving the thermal and acoustic performance of both new and renovated buildings.
Building Insulating and Breathable Walls
Hemp blocks are particularly suited to perimeter walls thanks to their high thermal-insulation capacity and breathability. This helps maintain an optimal indoor microclimate while reducing energy consumption for heating and cooling.
- Benefits:
- Reduction of thermal bridges thanks to the mortise-and-tenon interlocking system
- High capacity to absorb and release moisture, helping to prevent condensation and mould
- Improved indoor comfort thanks to natural hygrothermal regulation
- Installation tips:
- Use lime-based bedding mortar for effective, durable installation
- Complete the finish with hemp-lime plasters to preserve the wall’s breathability
Thermal Insulation of Existing Buildings
The use of hemp blocks is not limited to new construction; they are also an excellent solution for insulating existing buildings. Using them as external insulation or as an internal lining wall can improve energy efficiency without invasive work on the load-bearing structure.
Practical applications:
External thermal insulation: reduced heat loss and improved building energy rating
Internal insulation: improved comfort without changes to the external façade
Underfloor insulation: protection from cold and improved thermal comfort indoors
Recommended materials:
Freshly prepared bedding mortar to ensure maximum adhesion
Omnia hemp-lime base plaster for a natural, durable finish.
If you would like to explore the characteristics and benefits of hemp blocks in more depth, we recommend our previous article Hemp Blocks: A Sustainable Innovation for the Buildings of the Future, where we examine their environmental and performance characteristics in detail.
Internal Partitions for Acoustic Insulation
Hemp blocks offer excellent sound-absorbing properties, making them ideal for internal partitions in homes, offices and commercial spaces. Thanks to their porous composition, they reduce sound transmission between adjoining rooms, improving acoustic comfort.
Benefits:
Reduced noise between separate spaces
Natural, non-toxic material, ideal for sustainable construction
Easy installation and adaptability to different building types
Tips for optimal installation:
Make sure the installation surface is clean and level
Apply a lightweight bedding mortar to optimise drying times
Finish with thin coloured renders pigmented with natural earths for a natural appearance
The use of hemp blocks in sustainable construction offers a wide range of solutions for improving energy efficiency and indoor comfort. Whether for new construction, renovation or acoustic-insulation upgrades, this natural material represents a sustainable and effective choice.
Would you like to discover how to integrate hemp blocks into your next building project?
Contact us for advice and start building a more sustainable future!
