Sopratherm PIR Insulation Board TB4000 2400 x 1200 x 30mm

Overcome thermal bridging effectively with the Sopratherm TB4000 PIR insulation board, supplied in a thin 2400 x 1200 x 30mm size. This high-performance rigid foam board delivers excellent thermal efficiency with a thermal conductivity of 0.022 W/m.K, reducing the insulation thickness required to hit target U-values in tight construction spaces.

The board features a low emissivity foil facing that provides improved thermal performance in sealed cavity air spaces. Lightweight and rigid, Soprema boards are engineered to assist with ease of transportation, handling, and fitting on site.

Suitable for use in a number of building applications including roof, wall, and floor systems, Sopratherm TB4000 has been assessed by the BBA as fit for use in defined constructions when installed, used, and maintained according to the certificate.

• 2400 x 1200 x 30mm slim profile – ideal for detailing work and overcoming thermal bridging
• 0.022 W/m.K thermal conductivity – delivers high thermal resistance in a thin board format
• Low emissivity foil facing – improves achievable U-values within sealed cavity spaces
• Lightweight and rigid foam – simplifies site transportation, cutting, and installation
• Multi-application suitability – designed for use across defined roof, wall, and floor systems
• BBA assessed – certified for performance and compliance in approved construction structures
• Available in various thicknesses – including 20mm, 25mm, and 40mm

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.