Hempcrete – Retrofitting for self-builders

Hempcrete – Retrofitting for self-builders


Home » Hempcrete – Retrofitting for self-builders

A low carbon insulation material that’s flexible and easy to use.

If you’re adding insulation to your home and are thinking of using a low-impact alternative, hempcrete might be the ideal material. This course will give you a good understanding of the principles involved and the chance for some hands-on practice. Suitable for self-builders and for professional builders who would like to add to their skill-base.

Key information

  • Duration: one day
  • Upcoming dates: please see booking section below for all available dates
  • Start and finish times: 9.30am to 6pm
  • Fees: £100
  • Includes: tuition, all materials, lunch
  • What to bring: as this is a highly practical course, safety boots are required and waterproof clothing is recommended

What you will learn

Join experienced teacher Alex Sparrow for a fascinating and enabling day of theory and practical learning, ideal for self-builders.

Hempcrete, or hemp-lime, is a natural, carbon-negative material that is ideal for repairing or adding insulation to traditional or historic buildings.

You’ll learn how to best use hempcrete in renovation and retrofit and get lots of experience working on a hempcrete infill to a timber frame panel, including shuttering, reinforcement, mixing and placing the hempcrete.

You’ll also learn about using hempcrete for solid wall insulation, including preparation and key, shuttering, mixing and applying the hempcrete.

If time allows, you’ll also get the chance to do some lime plastering.

Meet your tutor

Alex Sparrow works for one of only a handful of companies working with hempcrete in the UK and the only one to work with self-builders. He works on the strategic development of the company but still regularly take the opportunity to get his hands dirty on the building sites.

He is also a freelance writer on natural building, and author of The Hempcrete Book.

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