The National Trust in Wales is working with stonewall insulation manufacturer Rockwool on the UK’s biggest ever ‘green’ makeover of historical buildings.
Rockwool is supplying a range of high grade insulation materials to seven Welsh castles as part of the National Trust’s bid to cut fossil fuel use by 50% by 2020.
Staff and volunteers at historic Plas Newydd House will line up and form a human chain to pass almost 486 rolls of Rockwool insulation from the delivery vehicle and up to the roof space of the mansion. It’s estimated that the house will produce 30,000kg less carbon after the roof insulation is in place
In total Plas Newydd will use 2,000 m2 of Rockwool insulation roll, enough to cover half a professional football pitch or an area equivalent to 90 Routemaster double decker buses parked end to end.
Rockwool was chosen for its insulation, fire-resistance and recyclable properties.
Rockwool insulation is created from naturally occurring volcanic diabase rock with the ore smelted and spun into fibres to create a wide range of insulation materials, ranging from loft insulation rolls to impact-resistant roofing boards. It is also bonded to produce high performance panels.