Insulation industry news from Global Insulation

Belgium: Knauf Insulation has released its ‘Sustainability Journey: 2023 Highlights’ report. It reveals the company’s sustainability strategy achievements focusing on safety, employee engagement, decarbonisation and the circular economy.

The company reduced its absolute full-scope emissions for its mineral wool production by 8.2% year-on-year to 1.34Mt of CO₂e in 2022 from 1.46Mt in 2021, mainly due to a significant fall in Scope 2 emissions. it currently has a target to reduce its specific embodied carbon emissions by 15% from 2021 to 2025. The recycled content of its glass mineral wool products fell to 55% in 2022 from 64%, despite the company having a target of 65% by 2025. It explained that sourcing large volumes of recycled materials of sufficient quality had proved challenging in some markets. However, it did increase the recycled content of its rock mineral wool products to 13% from 11%, with a target of 25% set for 2024. It also reduced its total recordable incident rate by 8% to 5.9 from 6.4 against a target of below 5 for 2025.

Dominique Bossan, the chief executive officer for Europe, Middle East and Asia at Knauf Group, said “The report documents our progress towards achieving our 2025 sustainability targets. It shows the areas where we need to improve, celebrates where we have made positive progress and pays tribute to the hard work of our teams."

Denmark: Saint-Gobain’s subsidiaries Isover and Leca have started an agreement with waste management company Norrecco to recycle glass wool insulation. Under the new system, contractors will be able to return used and excess Isover glass wool to Norrecco's waste treatment stations at Prøvestenen in Copenhagen and at Agerskov in Southern Jutland. Norrecco will then pass the glass wool to Leca Denmark’s plant at Hinge near Randers. Here it will be used as a raw material in the production of lightweight expanded clay aggregate (LWA) products. LWA is used in a variety of applications such as insulation or as a structural filler. Leca added that LWA can be recycled repeatedly.

Mona Ammitzbøll Rasmussen, the Sustainability Engineer at Saint-Gobain Denmark, said "From the moment our glass wool leaves the factory, we want to support the idea that the material will one day return and be used in the production of new insulation materials, rather than ending up in landfills. It is an unnecessary waste that we need to eliminate as soon as possible."

Leca Denmark has the capacity to accept around 1000t/yr of used or excess glass wool from the Danish market. The company said that, although it represents a small portion of the total production, it reduces the need to extract a corresponding amount of natural clay, which is the primary raw material in its Leca LWA product. Isover is also working on publishing guides to better help contractors sort between the different types of mineral wool to assess purity ahead of potential recycling.

Belgium: Recticel’s Simfocor polyurethane board product has been certified a ‘Solar Impulse Efficient Solution’ by the Solar Impulse Foundation. The label is awarded to products, services or processes combining credible environmental and economic performance. It also means that Simfocor joins the Solar Impulse Foundation’s list of products selected for their contribution to clean economic growth.

Simfocor is part of the ‘Recticel Silence’ insulation range and is currently sold in France and Spain. It is a polyurethane insulation board that is marketed for both its acoustic and thermal insulation properties. The product is made of recycled polyurethane foams sourced from discarded mattresses.

US: Saint-Gobain North America has started a program where windshield glass scraps are recycled and reused in the production of insulation. Waste glass from the company’s Saint-Gobain Sekurit’s unit at Garden Grove in California is sent to CertainTeed Insulation’s facility at Chowchilla, where it is use to make fibreglass insulation. Saint-Gobain is working with Shark Solutions on the project. The initiative started earlier in 2022.

US: Owens Corning has achieved inclusion on the Dow Jones Sustainability World Index 2022, topping the Building Materials category. The producer scored 88 out of 100 for sustainable performance across multiple indices. It recorded full marks for environmental reporting, materiality, recycling strategy, risk and crisis management and social reporting.

Owens Corning's senior vice president and chief sustainability officer David Rabuano said, "Earning placement on this index for the 13th consecutive year is a validation of the daily efforts of our colleagues across our operations globally. I am proud that their hard work and diligence in our sustainability efforts continues to be the driver of our leadership on the Dow Jones Sustainability Index - and an ongoing contributor to achieving our goals for 2030 and beyond."

Europe: Dow has announced the European launch of V PLUS Perform Next, a polyurethane (PU) insulation product for use in insulated metal panels. V PLUS Perform Next insulation contains alternative raw materials from circular feedstocks, including bio-based feedstocks. Dow allocates the feedstocks based on a mass balance chain of custody, validated by International Sustainability and Carbon Certification (ISCC). It produces V PLUS Perform Next using over 25% renewable energy.

Dow PU construction insulation marketing fellow Alberto Mercati said “The new EU Energy Performance of Buildings directive adds urgency for buildings that require energy efficient insulation with decreased embodied carbon. For the last five years, V PLUS Perform has enabled insulated metal panel manufacturers to deliver building envelopes that couple energy efficiency and fire safety. V PLUS Perform Next supports insulated panel manufacturers to select lower carbon and circular construction ingredients from the design phase to the delivery of a novel class of products for more sustainable buildings.”

Germany: Knauf Insulation has launched new overwraps on its global insulation product portfolio. The new packaging reduces ink consumption by 70% through its design, featuring a white or off-white base hue and no more than one additional colour. The wraps are designed to maximise ease and efficiency and reduce cost of recycling. This is in line with Knauf Insulation's commitment to recycle over 25% of packaging by 2025. Within the same timeframe, it also aims to reduce its packaging's virgin plastic consumption by 25% and collect over 35% of delivery pallets for repair and reuse or recycling.

Denmark: Sweden-based Indutrade has concluded an agreement to acquire foam producer Bramming Plast-Industri. The parties expect to close the transaction later in 2022.

Bramming Plast-Industri's products include Inotan polyurethane (PU) and polyisocyanurate (PIR) foams and Setex recycled PU granular foam.

Germany: Chemicals producer BASF has partnered with RAMPF Eco Solutions, Poland-based Remondis Electrorecycling and engineering company KraussMaffei to develop depolymerisation techniques to produce polyol from waste polyurethane (PU) fridge insulation, as an alternative to natural hydrocarbons. The recovered polyol could then be used as a raw material in PU insulation production.

BASF said "This innovative process is particularly challenging because it has to be very robust in order to reliably convert post-consumer waste with high levels of foreign substances into a high-quality recycled polyol.”

Waste fridge insulation's only current use is as an alternative fuel by the energy sector.

France: Saint-Gobain subsidiary Isover has begun construction of a prototype glass wool recycling plant in Chemillé-en-Anjou. Contractor Eiffage Génie Civil is executing the project, which is scheduled for commissioning in 2023.

Isover France and Switzerland technical director Jérôme Saulnier saud "The realisation of this revolutionary industrial prototype with fusion by immersed burners will make it possible to recycle glass wool in industrial quantities, transforming it into cullet. This cullet will be used in the manufacturing process of our insulating products and will also reduce our energy consumption, our carbon emissions and improve the life cycle of our products."