Insulation industry news from Global Insulation

North America: The North American Insulation Manufacturers Association (NAIMA) has reported that its members recycled 1.36Mt of materials in their insulation products in 2023. Recycling Today News has reported that the main fraction used was glass, at 1.18Mt, 87% of the total. 1.15Mt of this (77%) was used in insulation production in the US, and 191,000t (23%) in Canada. NAIMA's industry-wide recycling programme has diverted 47Mt of recycled materials into insulation production since 1992.

NAIMA president and CEO Curt Rich said "Our industry continues to demonstrate its commitment to using recycled materials in the production of these essential products. With increased focus on whole building decarbonisation, insulation products will be a critical component of that activity. Sourcing recycled materials is one way we can decrease our environmental impact while producing essential insulation materials that ultimately lower building emissions."

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.

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."

US: Knauf Insulation has won a contract to recycle waste glass bottles from the NTT IndyCar Series Big Machine Music City Grand Prix in Nashville, Tennessee, on 5 – 7 August 2022.

Knauf Insulation’s vice president of sustainability and health, safety and environment Chris Mahin said "These types of unique recycling opportunities are valuable for Knauf as we continue to seek alternative sources for glass – the main ingredient in our high quality glass wool insulation.”

US: Knauf Insulation is celebrating the 20th anniversary of the beginning of operations at its Shasta Lake glass wool insulation plant in California. Local press has reported that the company increased its capacity by 70% over the past two decades. Today, the Shasta Lake plant employs 156 people. It has implemented sustainable practices in its production, including the use of ECOSE Technology plant-based binders in the place of petrochemical alternatives. It also recycles 600,000 glass bottles daily, constituting 50% of its glass consumption. This presented the plant with difficulties when Covid-19 lockdowns reduced local waste glass generation.

US: Owens Corning’s 16th Sustainability Report has detailed the producer’s progress towards achieving its 2030 sustainability goals. The report covers indicators under 16 topics to demonstrate its environnmental footprint reduction. These included lowering greenhouse gas emissions, increasing recycled content and circularity, improving energy and process efficiency, increasing renewable energy use and fuel switching from on-site fossil fuel use to lower or zero-carbon alternatives. Between 2007 and 2021, Owens Corning reduced its CO₂ emissions by 60%. In 2021, it recycled 635,000t of glass in its glass wool insulation production.

CEO Brian Chambers and senior vice president and chief sustainability officer (CSO) Frank O'Brien-Bernini said "We have established roadmaps to help our teams understand what’s needed to meet our environmental footprint reduction goals. These roadmaps guide our short, mid and long-term strategies, and help ensure that sustainability remains our priority as we innovate to serve our customers, while addressing both the challenges and the opportunities within the relevant secular trends." They continued "Beyond environmental footprint reduction 'within' our plants, we are working to refine our understanding and set measurable goals for our impact on biodiversity and the circular economy, as well as continually seeking better ways to measure our progress on social impact priorities like inclusion and diversity.”

Uzbekistan: The European Bank for Reconstruction and Development has issued a US$5m loan to Ecoclimat Group for the launch of a new subsidiary, Angren Insulation. The company will use the loan to build a 32,000t/yr glasswool plant in Tashkent. The plant will use recycled glass as an input and reduce the group’s CO₂ emissions by 85,000t/yr. The insulation producer said that it will help it to meet the growing local demand for mineral-based insulation.

US: Knauf Insulation North America and the Michigan Economic Development Corporation (MEDC) have announced an investment of around US$35m at Knauf’s fibre glass inslation plant at Albion in Michigan. The upgrade is expected to convert and restart an idled production line, increasing production capacity by more than 30% and adding 34 new full-time jobs. It will use recycled bottle glass recovered through the state of Michigan’s Bottle Deposit Law as a raw material. The project is expected to be completed in late 2020.

“Keeping pace with the growing demand in the upper Midwest for quality loose-fill insulation products will be made possible through the expansion of our plant here in Albion,” said Kevin Keen, plant manager at Albion.

The Michigan Strategic Fund (MSF) has approved a US$200,000 Michigan Business Development Program performance-based grant in support of the project. The MSF also approved a 100%, 15-year State Essential Services Act exemption valued at US$780,000.

North America: A survey by the North American Insulation Manufacturers Association (NAIMA) shows that its members used around 1.17Mt of recycled glass to produce residential, commercial and industrial thermal and acoustical insulation in 2018. The survey included data from both US and Canadian production plants. Producers also used over 0.45Mt of recycled blast furnace slag in the production of thermal and acoustic insulation.

UK: Plans by Knauf Insulation and Veolia to tackle complains about the ‘offensive’ odour from a glass-recycling unit at Knauf’s St Helens mineral wool plant have been approved by the local council. The proposals include introducing a wet scrubber and extending the current dryerstack to 30m from 13m, according to the St Helens Star newspaper. These measures were suggested following an assessment with Odournet. Local residents have made complaints about the Veolia-run unit since it became operation in October 2017.