Insulate solid walls and roofs in a single operation with the Sopratherm PL4025 thermal laminate insulation board, supplied in a 2400 x 1200mm size with a 37.5mm overall thickness (25mm PIR bonded to 12.5mm plasterboard). This multi-purpose, high-performance board is engineered from rigid polyisocyanurate (PIR) foam bonded directly to tapered edge plasterboard, providing 2.88m2 of coverage per sheet.

Offering a thermal conductivity of 0.022 W/m.K, the board delivers reliable thermal resistance while featuring zero ozone depletion and a low global warming impact. The integrated plasterboard face is defined as Class O in accordance with building regulations, ensuring a safe, ready-to-finish surface for internal rooms.

BBA and OFGEM approved, this versatile laminate board is suitable for pitched roof, flat roof, and solid wall applications. It can be installed using both direct bonding "dot and dab" adhesive and mechanically fixed installation techniques.

• 37.5mm overall thickness – combines 25mm PIR foam with 12.5mm tapered edge plasterboard
• 0.022 W/m.K thermal conductivity – delivers high thermal resistance for solid wall insulation
• 2-in-1 installation – installs both insulation and plasterboard simultaneously to save labor time
• Versatile fixing methods – suitable for direct bonding "dot and dab" or mechanical fixing
• Class O plasterboard face – meets strict building regulations for internal surface fire safety
• BBA and OFGEM approved – certified performance for pitched roofs, flat roofs, and walls
• Available in various sizes – including 52.5mm, 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.
• Items that come direct from a supplier will be delivered by the courier chosen by the supplier. Where possible, suppliers will update you with delivery information. This may be by email, phone call or text message.
• 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.