US: Owens Corning has received R-value certification across all its fibreglass and mineral wool batts and rolls sold in the US. This validation was awarded from the North American Insulation Manufacturers Association (NAIMA) following testing and validation by an accredited third-party laboratory.

Under the program, Owens Corning agreed to have a random selection of products regularly tested to verify compliance with the thermal performance requirements of the Federal Trade Commission's (FTC) ‘Labeling and Advertising of Home Insulation’ (16 CFR Part 460) regulation.

The R-value certification represents the latest in third-party verification Owens Corning has earned across its insulation product portfolio. It will be visible on its packaging later in 2019.

UK: SIG’s revenue fell by 1.2% year-on-year to Euro3.11bn in 2018 from Euro3.15bn in 2017. Its profit before tax increased by 8.5% to Euro87.2m from Euro80.4m. The building materials producer blamed ‘challenging’ market conditions but it highlighted its focus on prices and profitability.

US: Researchers at Washington State University (WSU) have developed an alternative to extruded polystyrene foam that uses nanocrystals of cellulose instead of petroleum based products. The team, led by Amir Ameli, assistant professor in the School of Mechanical and Materials Engineering, and Xiao Zhang, associate professor in the Gene and Linda School of Chemical Engineering and Bioengineering, have also developed a manufacturing process to make the foam using water as a solvent.

The project is working on developing an environmentally friendly replacement for extruded polystyrene foam. The WSU team created a material that is made of about 75% cellulose nanocrystals from wood pulp. They added polyvinyl alcohol, another polymer that bonds with the nanocellulose crystals and makes the resultant foams more elastic.

“We have used an easy method to make high-performance, composite foams based on nanocrystalline cellulose with an excellent combination of thermal insulation capability and mechanical properties,” said Ameli.

The researchers are now developing formulations for stronger and more durable materials for practical applications. They are interested in incorporating low‑cost feedstocks to make a commercially viable product and considering how to move from laboratory to a real-world manufacturing scale.

Belgium: Knauf Insulation plans to install 6000 photovoltaic panels at its Visé mineral wool plant. These will provide 1700MWhr/yr to the unit. The announcement was made at the opening of Knauf Insulation’s Experience Centre in Visé. The centre is intended to act as a knowledge base for best practice and sustainability.