North America: A survey by the North American Insulation Manufacturers Association (NAIMA) has revealed that its members used over 0.9Mt of recycled glass to produce residential, commercial and industrial thermal and acoustical insulation in 2017. The survey included data from both US and Canadian production plants.

Producers also used over 0.3Mt of recycled blast furnace slag in the production of thermal and acoustic insulation. Since the industry’s recycling program began in 1992, NAIMA estimates that its members’ plants have diverted an estimated 26Mt of recycled materials from the waste stream.

“Our industry is tremendously proud of the substantial use of recycled content in the production of energy saving insulation products,” said Curt Rich, president and chief executive officer (CEO) of NAIMA. “These products ultimately reduce building energy use and decrease our carbon footprint. Over the long term, the fibre glass and mineral wool insulation industry expects to continue using substantial amounts of recycled content in the production of insulation products.”

Germany: Dennert Poraver has developed an insulating render formulation by using Poraver expanded glass aerogel granules from Cabot in 0.01 - 4mm sizes. The expanded glass granules producer says that aerogel thermal insulation renders are ultra-light, water-repellent, open to diffusion and achieve high thermal insulation even with small layer thicknesses.

The new product is targeted for the interior and exterior renovation of historic buildings. Due to the thin application layer, the producer says that the characteristics of the building remain largely unchanged. The building material can also be used for rendering masonry in new buildings. The insulating renders are also classified as ‘non-combustible, smoke-development free, non dripping.’ This means that they can also be used for facades, where previously only mineral wool-based insulating materials could be used due to increased fire protection requirements.

Poraver and Aerogel were combined for the development of a mineral thermal insulation render in order to combine the advantages of both lightweight aggregates. Cabot Aerogel supplied aerogel in the form of 0.01 - 4mm granules for the insulation render. Poraver was added to the render as a mineral aggregate with a grain size of 1 - 2mm. Various proportions of aerogel and Poraver were tested. After the tests, it could be determined that the compressive strength and processing properties had improved ‘significantly’ with the addition of Poraver. The most economical and practicable formulation has a thermal conductivity of 0.037W/mK with a dry bulk density of 199 kg/m³.

Hungary: Austria’s Austrotherm has built a Euro0.9m warehouse at its base in Szekszard. The new unit has an area of 2000m², according to the MTI – Eco news agency. The insulation producer manufactures expanded polystyrene (EPS) insulation at a plant in Gyor.

Belgium: Recticel’s sales from its insulation division have rallied following the resumption on methylene diphenyl diisocyanate (MDI) supplies after a shortage in 2017 and poor weather in the first quarter of 2018. Its sales rose by 2.7% year-on-year to Euro129m in the first half of 2018 from Euro133m in the same period in 2017. Earnings before interest, taxation, depreciation and amortisation (EBTIDA) increased by 60.6% to Euro14.2m fro Euro22.8m. It attributed the growth in profitability to price rises and efficiency gains. The company also said that the construction of a new plant in Finland, dedicated to the supply of the Scandinavian and Baltics markets, is on schedule to start up in late 2018.