Insulation industry news from Global Insulation

Iraq: Researchers found that a sawdust-clay composite reduced power consumption for cooling by up to 37% when used as insulation in test rooms in Kirkuk. In a paper published in the Scientific Reports journal, the team recorded a thermal conductivity of the material of 0.44W/mK. It noted the suitability of the material as a circular insulation alternative for construction in arid regions.

Switzerland: ETH Zurich spin-off Aeroskin Tech has developed an aerogel-based insulation that delivers comparable U-values to conventional insulations at a thickness of just 10cm. Parametric Architecture News has reported that the aerogel insulation will be available both as a spray plaster and as boards.

Germany: The Fraunhofer Institute for Environmental, Safety, and Energy Technology in Oberhausen is reportedly looking for partnerships through which to commercialise its new aerogel-based insulation. WAZ Plus News has reported that the insulation consists of porous beads made of 99% air.

Materials from the Fraunhofer Institute’s pilot plant have featured in construction projects including in the historic Hanseatic Quarter of Lübeck, Schleswig-Holstein, and the town hall of Hohen Neundorf in Brandenburg.

Ireland: Kingspan says that its latest modifications to its GreenGuard GG300 insulation boards have further reduced their thermal conductivity to 0.033W/mK. Specification Online News has reported that the producer says that this will facilitate slimmer construction while still meeting U-values, especially important in high compressive strength-applications such as inverted roofs and flooring. Accordingly, the boards are now also available in a new, slimmer 180mm thickness. The entire range of GreenGuard GG300 boards integrates with Kingspan's BIM Designer software platform.

UAE: A researcher team at the United Arab Emirates University (UAEU) has developed a novel bio-polyester insulation based on polyhydroxybutyrate derived from date pits. The material has a thermal conductivity of below 0.1W/mK, with 80MPa compressive strength and 6 – 14MPa tensile strength. EurekAlert News has reported that the materials is also below 6% water absorbant.

Team leaders Amal Mlhem and Thomas Teklebrhan said that the bio-polyester insulation can lower the CO₂ emissions of commercial insulation and offer a biodegradable alternative.

UK: A team at the University of Exeter in Devon is investigating possible types of insulation for small-scale farms to produce using byproducts from crop harvests. The project, supported by construction engineering firm Local Works Studio, is part of the Ecological Citizens Network. It is intended to bolster rural economies, address industrial labour shortages and advance sustainable construction. Farmers Guide News has reported that an accompanying podcast and other publications will help to generate engagement.

Team leader Caroline Nye said "Participation and employment in a pioneering, environmentally sensitive new industry, centred in the countryside, could foster a closer engagement of deprived rural communities with the land and bring the benefits of a distributed local economy."

Brazil: A study has successfully enhanced the insulation properties of styrene-butadiene rubber (SBR) composites by incorporating micronised leather shavings. In a report published in the Journal of Materials Research and Technology, Gabriel Deltrejo Ribeiro and his team concluded that the new SBR-leather composite insulation had a thermal conductivity of 0.073W/mK and achieved a temperature attenuation of about 15°C.

US: Hamed Saber has won the Reflective Insulation Manufacturers Association (RIMA) International’s Alexander Schwartz Award. The awarded recognises notable reflective products industry representatives who have advanced the industry through their contributions. Saber has authored over 150 papers, with sponsors including the US Department of Energy, American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and the Oak Ridge National Laboratory. RIMA International said that Saber’s work has been instrumental in progressing the industry from one-dimensional to three-dimensional analysis within the industry, which it called the ‘third spike’ in the history of reflective insulation technology.

The association said “RIMA International is pleased to recognise Dr Hamed Saber for all he has contributed on behalf of this organisation and the industry it represents throughout his professional career. The industry has benefited greatly from his efforts, and it couldn’t go to a more deserving person.”

UK: Only 18% of UK housing stock conforms with standards set in 2002, according to a study by utilities provider EDF and property data company Sprift. This represents a rise from 7.5% in the previous study conducted in May 2022. 41% of homes fail to meet standards set later than 1976, down from 60% in May 2022. The average ‘insulation age’ of UK housing is 41 years old, 11% younger than the age of 46 years old recorded in the previous study.

Spain: Knauf Insulation has called on Spain, as the current president of the Council of the European Union, to further decarbonise building stock in the region.

Oscar Del Rio, the general manager of Knauf Insulation Iberia, said “The outcome of domestic politics may still be uncertain at the moment, but on the international stage, Spain holds the presidency of the Council of the European Union until the end of December 2023 and its focus must be crystal clear. Europe needs to seize the opportunity of the recast of the Energy Performance of Buildings Directive (EPBD) to ensure an approach that will decarbonise its building stock by increasing renovation rates and committing to quality retrofit standards that deliver real performance.”

The insulation producer cited research by the Building Performance Institute (BPIE), which it supported, that found that insulating all Europe’s residential buildings would cut energy demand for space heating by 44%, compared to 2020, making a ‘significant’ contribution to energy security and the EU’s 2050 climate goals. The company has also urged policy makers to introduce ‘one-stop shops’ for renovation to enable building owners to make retrofitting easier and to use digital tools to make it easier for people to view potential performance savings.

The company used Spain as an example of a country that needs a more ambitious renovation strategy. It noted that, according to Spain’s Energy Renovation of the Building Sector strategy, 9.7 million homes or 50% of residential buildings were built before 1980 and an additional one million are described as in a poor or dilapidated condition. In addition, 81% of existing buildings are in the E, F or G emissions categories and 84.5% are in these categories for energy consumption. It quoted research by Renovate Europe that found that the renovation rate of buildings in Spain was eight to 10 times lower than the average for neighbouring countries.