Upgrade solid wall thermal performance with the Sopratherm PL4065 thermal laminate insulation board, supplied in a 400 x 1200mm size with a 77.5mm overall thickness (65mm PIR bonded to 12.5mm plasterboard). Engineered from rigid polyisocyanurate (PIR) foam bonded to tapered edge plasterboard, this high-performance board installs both insulation and drylining in one operation.

Delivering a low thermal conductivity of 0.022 W/m.K, the board provides excellent thermal resistance for solid wall and roof applications while featuring zero ozone depletion and a low global warming impact. The plasterboard facing is defined as Class O in accordance with building regulations.

BBA and OFGEM approved, this board is suitable for pitched roof, flat roof, and wall projects. It accommodates both direct bonding "dot and dab" and mechanically fixed installation techniques.

• 77.5mm overall thickness – combines 65mm PIR foam with 12.5mm tapered edge plasterboard
• 400 x 1200mm sheet size – specialized narrow dimensions ideal for reveals and tight wall spaces
• 0.022 W/m.K thermal conductivity – reduces heat loss significantly in solid wall constructions
• Single-operation installation – applies insulation and ready-to-finish plasterboard together
• Dual-fixing compatibility – install using "dot and dab" adhesive or mechanical fixings
• BBA and OFGEM approved – verified compliance for roof and wall thermal upgrades
• Available in various sizes – including 37.5mm, 52.5mm, 62.5mm, and 72.5mm overall thicknesses

Delivery Notice: Deliveries are made to the kerbside or nearest accessible road point at your property. Due to courier restrictions, this item cannot be delivered to:
Scotland: AB10-16, AB21-25, AB30-39, AB41-45, AB51-56 | IV1-28, IV30-32, IV36, IV40-56, IV63 | KW1-17 | PA1-20, PA21-38, PA41-49, PA60-78, PA80 | PH1-26, PH30-44, PH49-50
Wales: LD1-8 | LL21-49, LL51-78 | SA1-20, SA31-48, SA61-73 | SY15-25

This item will be delivered directly by our supplier. Lead times are shown on the product and trolley pages and are always advertised in working days (Monday to Friday).

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• Most of our suppliers can deliver to any UK address. Delivery to remote or offshore postcodes may take a little longer than the advertised lead time. If the supplier cannot deliver to your postcode or we believe your order may take longer, we will try to tell you beforehand.
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• Please note, you cannot return bespoke or made-to-measure items unless they are faulty.