Knauf Insulation has completed a major upgrade of its glass mineral wool manufacturing plant in St Helens, which features UK-first forming technology to enable new product capability.
Glass mineral wool insulation is central to meeting the UK’s housebuilding and energy efficiency needs,” said Neil Hargreaves, The upgrade has increased roll, slab and blowing wool capacity by up to 25,000 tonnes, added new product capability and further reduced the embodied carbon of products made at the site, the largest glass mineral wool plant in the UK.
The upgraded plant was officially reopened on 26 November 2024 by Knauf Group General Partner Alexander Knauf and Liverpool City Region Mayor Steve Rotheram, alongside representatives from St Helens Borough Council and senior personnel from the Knauf Insulation Group.
“Glass mineral wool insulation is central to meeting the UK’s housebuilding and energy efficiency needs,” said Neil Hargreaves, Managing Director, Knauf Insulation Northern Europe.
“This upgrade means we can deliver increased volumes and enhanced products for our customers to meet rising demand for warmer, safer and sustainable homes with lower energy bills.”
The plant now features UK-first forming technology that will enable Knauf Insulation to create the next generation of low thermal conductivity, non-combustible glass mineral wool products and add thicker options to its existing ranges. The extensive programme of work involved over 1,100 contractors over a six-month period. It included installation of a larger plant furnace which is used to melt the main raw material of glass cullet, collected via local household recycling.
