Insulate and dryline solid walls efficiently with the Sopratherm PL4040 thermal laminate insulation board, supplied in a 2400 x 1200mm size with a 52.5mm overall thickness (40mm PIR bonded to 12.5mm plasterboard). This multi-purpose board bonds rigid polyisocyanurate (PIR) foam directly to tapered edge plasterboard, providing 2.88m2 of coverage per sheet and installing both elements in a single operation.

Offering a low thermal conductivity of 0.022 W/m.K, the board reduces heat loss effectively while featuring zero ozone depletion and a low global warming impact. The plasterboard facing is defined as Class O in accordance with building regulations, ensuring internal surface fire safety.

BBA and OFGEM approved, this versatile board is suitable for pitched roof, flat roof, and solid wall applications. It can be installed using either direct bonding "dot and dab" adhesive or mechanical fixing techniques.

• 52.5mm overall thickness – combines 40mm PIR insulation with 12.5mm tapered edge plasterboard
• 0.022 W/m.K thermal conductivity – delivers high thermal resistance for solid wall upgrades
• 2-in-1 installation – fixes thermal foam and ready-to-finish plasterboard together in one step
• Dual-fixing compatibility – install reliably using "dot and dab" bonding or mechanical fixings
• Class O plasterboard face – meets strict building regulations for interior fire spread resistance
• BBA and OFGEM approved – certified performance for wall and roof refurbishment projects
• Available in various sizes – including 37.5mm, 62.5mm, 72.5mm, and 77.5mm 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).

• If your order contains items stocked by us and items that come direct from the supplier, your order will be automatically split and processed accordingly.
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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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• Items delivered direct from suppliers cannot be returned through a store. You would need to return these items direct to the supplier, unused and in their original packaging, at your expense. You can arrange for the items to be collected, for a fixed fee of £9, by contacting our Customer Services team. The fee will be taken off your refund. There is no charge for faulty items being collected.
• Please note, you cannot return bespoke or made-to-measure items unless they are faulty.