82.5mm Eco-Liner Insulated Plasterboard combines insulation and wall finish in a single integrated system. Purpose-engineered for both mechanical fixing and adhesive bonding applications, this composite product features a high-performance insulation layer delivering a thermal conductivity of 0.022 W/mK. The 82.5mm format provides an efficient solution for upgrading internal walls and pitched roofs with minimal installation complexity.
Model: 82.5mm EcoTherm Eco-Liner
Thickness: 82.5mm
Pack Quantity: 1 sheet
Dimensions: 2,400mm x 1,200mm x 82.5mm ( 70mm PIR bonded to 12.5mm Plasterboard)
Length: 2400mm
Width: 1200mm
Weight : Eco-Liner has an approximate weight of 10.76 kg/m2 at a thickness of 82.5 mm (insulation thickness 70 mm plus 12.5 mm plasterboard)
Compressive Strength: >>140kPa
Material: Eco-Liner is a high performance rigid thermoset polyisocyanurate PIR insulation.
Thermal Conductivity: Insulation: 0.022 W/mK & Plasterboard: 0.19 W/mK
Thermal Resistance: 3.25 m2K/W
Core Density: 28kg/m3
Fire Classification: European Classification (Euroclass) B-s1,d0 when classified to EN 13501-1: 2018.
Coverage: 2.88m2
Surface: Composite kraft paper facing adhered to 12.5mm or 9.5mm*plasterboard
Facing: 82.5mm Ecotherm has a bilaminate foil/kraft paper facing on the outer, bonded to a 12.5 mm tapered edge gypsum plasterboard on the inner facing.
Finish: Kraft facing ǀ Composite foil
Core water vapour resistivity: 2743 x 1200
Edge: Butt
Fire Performance: BS 476-7 / Class 1
Application: Eco-Liner 82.5mm insulated plasterboard is internal wall insulation for solid, cavity or timber frame walls within new and existing properties. Eco-Liner is also an ideal insulation product for pitched roofs.
Key features of Eco-Liner encompass its integrated 2-in-1 approach for simultaneous wall insulation and finishing, a rigid polyisocyanurate 70mm PIR insulation Board core paired with a tapered edge 12.5mm gypsum plasterboard layer, proven suitability for room-in-the-roof applications, wall installations, and cold flat roofs, and exceptional thermal performance with an insulation component rated at 0.022 W/mK.
82.5mm Ecotherm achieves a European Classification (Euroclass) of B-s1,d0 when tested according to EN 13501-1:2018, the standard governing fire classification of construction products and building elements based on reaction to fire performance.
Eco-Liner's 82.5mm insulation core component delivers a thermal conductivity (lambda/λ - value) of 0.022 W/mK, whilst the 12.5 mm gypsum plasterboard layer achieves a thermal conductivity of 0.19 W/mK.
When properly installed, 82.5mm Ecotherm Eco-Liner is engineered for indefinite service life. Product durability depends on installation methodology, structural support quality, and environmental conditions. Note that the 82.5mm insulated plasterboard is unsuitable for damp isolation or continuous exposure to damp or humid environments. Careful attention to installation procedures and usage context is critical for maximising Eco-Liner performance and longevity.
Explore our Ecotherm range and refine by thickness or coverage using the left-hand filters. For technical guidance on product suitability or bulk pricing requests, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Lowest UK Insulation Prices.














