Historic value H emp locks up to t wo tonnes of C O ₂ per tonne of f ibre. Hemp fibre has been used throughout history for durable applications such as, ropes, sails and clothing. Even today, ships still use hemp in sails and rigging around the world due to its strength and natural resistance to mildew and weathering. The hemp fibre used at Black Mountain is incredibly resilient, with an ability to buffer moisture, regulate thermal performance and retain its structural rigidity - making hemp an ideal natural insulator. True sustainability Hemp fibre is a biodegradable, non-toxic fibre. The organic...

Moisture permeability Greener alternative Condensation is a fundamental problem facing many architects today. A lack of ‘breathability’ in building materials can lead to structural damage, e.g. wood rot and health issues as a result of damp and mould. Black Mountain has the only dedicated natural insulation factory in the UK, which is not only one of the most modern in Europe achieving one of the lowest energy consumption. Hemp can absorb up to 20% of its weight in moisture without any deterioration in its thermal performance, whilst some man-made insulations will deteriorate significantly. Hemp...

Fire standards Black Mountain hemp insulation achieves a fire performance rating of Euro Class E which ensures that the material is flame retardant. All our hemp is treated with a non-toxic chemical compound to make it fire safe. This means that the product will not cause or exacerbate a fire. Hemp insulation matches the following standards for loft, rafter and internal wall thermal requirements as follows: England/Wales Approved Document L1, L2 – Table 1 Technical Standard Table J23 Installation & application Technical Booklet F – Table 1.2/1.4 Northern Ireland All our insulation products are...