Sopratherm Thermal Laminate Insulation Board PL4050 2400mm x 1200mm x 50mm 12.5mm PIR (62.5mm overall)

Enhance solid wall insulation with the Sopratherm PL4050 thermal laminate insulation board, supplied in a 2400 x 1200mm size with a 62.5mm overall thickness (50mm PIR bonded to 12.5mm plasterboard). This multi-purpose board combines rigid polyisocyanurate (PIR) foam directly with tapered edge plasterboard, providing 2.88m2 of coverage per sheet and installing both elements in a single operation.

Featuring a thermal conductivity of 0.022 W/m.K, the board delivers high thermal efficiency with zero ozone depletion and a low global warming impact. The integrated plasterboard surface is defined as Class O in accordance with building regulations, ensuring internal fire safety.

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

• 62.5mm overall thickness – combines 50mm PIR insulation with 12.5mm tapered edge plasterboard
• 0.022 W/m.K thermal conductivity – delivers robust thermal resistance for solid wall upgrades
• 2-in-1 application – attaches thermal insulation and drylining plasterboard simultaneously
• Flexible installation – suitable for both "dot and dab" direct bonding and mechanical fixing
• Class O plasterboard – complies with building regulations for internal surface spread of flame
• BBA and OFGEM approved – certified for dependable performance in roofs and walls
• Available in various sizes – including 37.5mm, 52.5mm, 72.5mm, and 77.5mm overall thicknesses

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.