Hempcrete for what types of applications?

With ProKalk limestone and IsoHemp hemp, the hempcrete allows you to insulate the walls of your house from the inside in two ways :

  • poured into a wooden formwork

  • applied directly on the wall : no visible joint, smooth finish (recommended only for professionals)

Hempcrete can also be used in addition to IsoHemp hemp blocks in specific applications if, for example, the walls to be insulated are not even. In this case, it is advisable to fill the gap between the existing wall and the new wall of hemp blocks with the correct amount of hempcrete.

Advantages of hempcrete

  • Comfort: constant temperature and heat retention in the home
  • Breathable and anti-humidity product : continuous regulation of the moisture in the air
  • High acoustic insulation: sound reduction index varying between 37 and 45 dB depending on the thickness chosen
  • Easy to work with in renovation projects
  • Fast production directly on site

How to make hempcrete ?

By combining IsoHemp hemp and ProKalk limestone, making hempcrete has never been easier. Simply mix the hemp and limestone with water in the proportions indicated in the table below depending on the desired application.

We recommend using a pan or a concrete mixer. First pour 80% of the required amount of water and ProKalk limestone into the machine. Wait a few minutes to see milt appear.

Then gradually pour in the necessary amount of hemp needed until a pasty mixture is obtained. Add the remaining 20% water and adjust if necessary.
Be careful not to spin the mixture too long to avoid the formation of small balls. Use hempcrete quickly. Repeat as many times as necessary.

You can also find practical tutorial videos on our YouTube channel to guide you through the use of our blocks.



The two IsoHemp products used to make hempcrete

IsoHemp hemp:

A quality aggregate which, mixed with ProKalk limestone, makes a light-weight and insulating concrete that can be quickly and easily produced on site.

Its advantages

  • Adaptation to the building
  • Performance guarantee with ProKalk
  • Very low dust rate
  • Locally sourced
  • Use in both renovation and new construction

ProKalk limestone

A pre-mixed binder specially adapted for making hempcrete. Composed of hydraulic lime and aerated limestone, this ready-to-use product can be mixed directly on site.

Its advantages :

  • 100% natural product

  • Suitable for mixers and spraying machines

  • Insulation of cold and heat

  • Humidity regulation

©2024, IsoHemp - Natural Building