Sopratherm PIR Insulation Board TB4000 2400 x 1200 x 40mm

Prevent thermal bridging and heat loss with the Sopratherm TB4000 PIR insulation board, supplied in a 2400 x 1200 x 40mm size. Offering excellent thermal performance with a conductivity of 0.022 W/m.K, this rigid foam sheet reduces the thickness of insulation required to hit target U-values across residential and commercial projects.

Equipped with low emissivity foil facings, the board provides improved thermal performance in sealed cavity air spaces. Soprema boards are manufactured to be light and rigid, assisting with ease of transportation, manual handling, and accurate fitting.

Ideal for detailing and overcoming thermal bridging, this high-performance board is suitable for use in numerous applications including roof, wall, and floor systems. It has been assessed by the BBA as fit for use in defined constructions when installed and maintained as set out in the certificate.

• 2400 x 1200 x 40mm dimensions – provides a slim, high-performance solution for thermal bridging
• 0.022 W/m.K thermal conductivity – ensures efficient thermal resistance without excessive thickness
• Low emissivity foil facing – enhances heat retention within sealed cavity air spaces
• Rigid and lightweight build – makes handling, cutting, and site installation straightforward
• Versatile application – suitable for detailing work across roofs, walls, and floors
• BBA assessed – verified fit for use in defined building applications
• Available in various thicknesses – including 20mm, 25mm, and 30mm

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.