The plants around us - plant-based insulation

The plants around us - plant-based insulation

Plant-based insulation is emerging as a leading choice for environmentally-conscious homeowners and as an alternative, not only providing good thermal efficiency but also meeting eco-friendly living requirements and practices.  With new construction or the renovation of existing homes, plant-based insulation can help create more sustainable and energy-efficient living spaces.

Unlike traditional insulation materials, plant-based options have a lower carbon footprint and contain no toxic chemicals, creating healthier indoor environments.

Though initial costs may be higher with plant based options, research indicates that homes using plant-based insulation can achieve up to 30% reduction in energy consumption and the installation process is also more straightforward and safer, requiring minimal protective equipment due to the absence of harmful substances.

Several plant-based materials are available for insulation purposes.  Hemp insulation has excellent durability and resistance to pests and mould.  It effectively manages moisture levels, and maintains its insulating properties regardless of humidity changes.  Cotton insulation provides excellent soundproofing capabilities and is particularly suitable for interior walls.  Its non-toxic nature makes it safe to handle during installation.  Flax insulation offers high thermal efficiency and natural breathability, with the added benefit of inherent fire-resistant properties.

Straw, cork, wood fibre, sisal wool, cashew nut shell, shredded paper, and olive stones are other naturally occurring plant-based options that can be used as insulation.  Even those fluffy ‘exploding’ seed heads of bullrush (Typha latifolia) have been put to use as a replacement filling in feather down jackets. 

As sustainable living continues to gain importance, plant-based insulation is a practical solution with the combination of performance, health benefits, and environmental advantages that make it an increasingly attractive option for modern construction, renovation and high performance clothing projects.

Wildlife in the garden - collared doves

We love collared doves. They’re often around the garden grazing under the bird feeders and the margins of the surrounding fields.  Barely known in the UK prior to the 1950s,...
Read More

Modern heroes of horticulture - Adam Kirtland

Adam Kirtland is a gardener who has surged onto the gardening scene in recent years with his informative, relatable, and often incredibly witty Instagram account that offers advice from making...
Read More

Gardeners' notes - what to do in August

Propagate clematis Many clematis will have flowered by now and you may have spotted a particularly good performer in your own or a friend’s garden.  Now is a good time...
Read More