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Ecological Building Systems has introduced a new type of sustainable insulation to the UK and Ireland. Gramitherm is the first insulation to be produced from grass, which is sourced from public parks and grass verges then combined with recycled jute fibres, plus a recycled polyester binder. Each hectare of grass can produce 200m3 of insulation.
Resistant to mould, Gramitherm has natural hygroscopic properties that helps to regulate humidity and enhance breathability. It has an Environmental Product Declaration demonstrating that 1kg of Gramitherm sequesters 1.5kg of CO2 equivalent post production, making it a highly efficient and eco-friendly choice.
Gramitherm can be installed in rafters, joists, walls, ceilings and floors. The insulation is both flexible and rigid, ensuring a snug fit without settlement. It has a high density of 40kg/m3 due to the fibrous structure of grass.
Gramitherm’s breathability and thermal performance make it suitable for both newbuilds and retrofits. With a thermal conductivity of 0.041W/mK and high heat storage capacity, Gramitherm keeps buildings warm in winter and cool in summer. It is available in 390mm and 580mm widths at various thicknesses and can be cut to size easily.
Gramitherm has excellent acoustic properties, absorbing 99% of sounds at 1000hertz and reducing noise transmission.
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