Delivering Climate Positive Impact

Sustainable Insulation Materials

All Products

Bio Flex Natural, Sustainable, breathable


£10.00£48.00 (ex. Vat)

HEMSPAN® BIO FLEX natural fibre hemp insulation is made with technical hemp fibres. BIO FLEX insulation has very low water vapour diffusion resistance and excellent thermal and acoustic properties. With its outstanding thermal performance and flexibility, this bio insulation can entirely replace glass and mineral wool insulation. It is ideally suited for internal, thermal or acoustic insulation and perfect for sustainable construction.

Suitable For:

  • Loft insulation
  • Pitched roofs, between rafters, joists and studs
  • Between floor joists
  • Internal acoustic wall insulation
  • Inserted into ceiling frames and suspended soffits
  • Partition and cavity walls

Sizes: 1100mm x 600mm | 1100mm x 370mm

Pricing: 50mm = £7.27/sqm | 100mm = £14.55/sqm

(Bespoke insulation sizes available for large orders)


£10.00£21.60 (ex. Vat)

HEMSPAN® BIO BOARD is a 100% breathable, natural fibre interior construction board product consisting of hemp straw and a mineral binding agent. The pure natural materials, water resistance and breathability contribute to a healthy living environment.

Suitable For:

  • Alternative to plasterboard (with lime plaster)
  • Use as a non-load bearing breathable board
  • Interior construction board
  • Dry and damp rooms, including bathrooms

Size: 19mm x 1200mm x 800mm

Pricing: £22.50/sqm

Bio Wall natural, sustainable, breathable


£9.00£18.00 (ex. Vat)

HEMSPAN® BIO WALL natural fibre hemp thermal insulation material is semi-rigid and eco-friendly. Made with technical hemp fibres, BIO WALL thermal insulation replaces the need for polystyrene, glass, and mineral wool insulation. Ideally suited to external, thermal or acoustic insulation, BIO WALL offers excellent thermal performance.

Suitable For:

  • External walls
  • External panelling
  • Internal thermal and acoustic wall insulation
  • Flat roof insulation with mechanical fixings
  • Pitched roof insulation

Size: 1100mm x 600mm

Pricing: 50mm = £13.64/sqm | 100mm = £27.27/sqm

(Bespoke insulation sizes available for large orders)

Bio Block Hero Image


£350.00 (ex. Vat)

BIO BLOCK is a superior material combining insulation and thermal mass properties. Composed of hemp shiv, hydrated dolomitic lime and probiotics.

  • Size: 500mm (w) x 200mm (h)
  • 120 blocks of 80mm depth (12sqm)
  • 80 blocks of 120mm depth (8sqm)
  • 40 blocks of 250mm depth (4sqm)
  • 30 blocks of 300mm depth (3sqm)