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16 Reviews
View Product Reviews25mm Celotex TB4025 PIR Insulation Board 2400mm x 1200mm
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25mm Celotex TB4025 is a high-performance thermal insulation PIR board with composite foil facings. It can be used for roof, floor, wall and timber joist applications.
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Product Overview
25mm Celotex TB4025 is a high-performance thermal insulation PIR board with composite foil facings. It can be used for roof, floor, wall and timber joist applications.
Delivery & Returns Information
All delivery charges are shown in your basket and are dependent on the total value of items in your basket based on product category.
Standard (Nationwide) Delivery
| Insulation, Plasterboard and Drylining Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £150 ex. VAT | £50 ex. VAT |
| Between £150 - £400 ex. VAT | £35 ex. VAT |
| Over £400 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Doors & Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 ex. VAT | £35 ex. VAT |
| Between £100 - £300 ex. VAT | £20 ex. VAT |
| Over £300 ex. VAT | FREE |
| SuperFOIL and YBS products | |
| ORDER VALUE | DELIVERY CHARGE |
| Each item | £10 ex. VAT |
| Over £350 ex. VAT of 1 brand | FREE |
| Screws & Fixings and Adhesives & Sealants | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 ex. VAT | £7.50 ex. VAT |
| Over £100 ex. VAT | FREE |
| Thermafleece CosyWool Roll & SupaSoft Insulation | |
| QUANTITY | DELIVERY CHARGE |
| 1 | £30 ex. VAT |
| 2 | £60 ex. VAT |
| 3 to 12 | £70 ex. VAT |
| 13 to 24 | £140 ex. VAT |
| 25 to 36 | £210 ex. VAT |
| 37 to 48 | £280 ex. VAT |
| 49 to 60 | £350 ex. VAT |
| 61+ | £420 ex. VAT |
| Thermafleece CosyWool Slab, Thermafleece UltraWool & Thermafleece NatraHemp | |
| QUANTITY | DELIVERY CHARGE |
| 1 | £30 ex. VAT |
| 2 | £60 ex. VAT |
| 3 to 4 | £70 ex. VAT |
| 5 to 8 | £140 ex. VAT |
| 9 to 12 | £210 ex. VAT |
| 13 to 16 | £280 ex. VAT |
| 17 to 20 | £350 ex. VAT |
| 21+ | £420 ex. VAT |
| Block Pavers | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 ex. VAT | £17.50 ex. VAT |
| Between £100 - £200 ex. VAT | £30.50 ex. VAT |
| Between £200 - £900 ex. VAT | £105 ex. VAT |
| Over £900 ex. VAT | FREE |
| Artificial Grass | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 ex. VAT | £12 ex. VAT |
| Between £100 - £200 ex. VAT | £16.50 ex. VAT |
| Over £200 ex. VAT | £22 ex. VAT |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 ex. VAT | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Doors & Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 ex. VAT | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
This charge is based on delivery to mainland UK excluding the Scottish Highlands. If your delivery address is in the Scottish Highlands a member of our customer service team will contact you prior to processing your order should an additional delivery charge apply. We do not offer deliveries outside the UK mainland.
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{home}} Use in floors, framed walls and pitched roofs
- {{grade}} Aluminium composite facing on both sides
- {{thermostat}} 0.022 W/mK thermal conductivity
- {{build}} Easy to handle and install
- {{public}} Zero Ozone Depletion Potential (ODP)
- {{verified_user}} BBA certified
Technical Specification
| Material Type: | PIR |
|---|---|
| Thickness: | 25mm |
| Width: | 1200mm |
| Length: | 2400mm |
| Sales Unit: | Board |
| Sales Unit Coverage: | 2.88m2 |
| Brand: | Celotex |
| Manufacturer's Reference: | TB4025 |
| Weight: | 0.95kg/m2 |
| Thermal Conductivity: | 0.022W/mK |
Technical Downloads
What Is 25mm Celotex TB4025?
25mm Celotex TB4025 is a BBA-certified thermal insulation solution purposed to combat thermal-bridging in a variety of floor, wall and roof applications.
25mm Celotex TB4025 PIR Applications
- Ground Floor - Concrete Slab (perimeter upstand)
- Ground Floor - Beam and Block (perimeter upstand)
- Ground Floor - Suspended Timber Joists (perimeter upstand)
- Ground Floor - Upgrading Existing Concrete Slab (perimeter upstand)
- External Wall - Timber Frame Internal Linings
- External Wall - Masonry Cavity Internal Linings
- External Wall - Solid Masonry Internal Linings
- Partition Wall
- Pitched Roof - Below Timber Rafters
- Pitched Roof - Above Timber Rafters
25mm Celotex TB4025 Specifications
- Excellent thermal conductivity of 0.022 W/mK - reduces the thickness required to hit the target U-value
- Low emissivity foil facing provides improved thermal performance in sealed cavity air spaces
- Complies with UK Building Regulations with better U-values and thinner solutions
- Zero Global Warming Potential (GWP) and Zero Ozone Depleting Potential (ODP)
- Easy to install
- BBA certified - Celotex TB4025 has been assessed by the BBA as fit for use in defined roof, wall and floor applications if installed, used and maintained as set out in the certificate
- Achieves a BRE Green Guide Rating of A, which can assist in demonstrating environmental performance in your BREEAM assessments
- Standard board size: 1200mm x 2400mm
- Water vapour resistance: 150MN.s/g.m
25mm Celotex TB4025 Certifications
- Spread of flame: Euroclass E Reaction to Fire classification, according to BS EN 13501-1
- Compressive Strength: 140kPa
- Thermal conductivity of 0.022 W/m.K, reducing the thickness of insulation required to hit the target U-value - BS EN 12667
- BRE Green Guide Rating of A for sustainability - which can assist in demonstrating environmental performance in your BREEAM assessments
- BBA certified
25mm Celotex TB4025 Insulation Storage & Handling
If you need to store 25mm Celotex TB4025 insulation boards for a while before installation, you should choose a cool, dry space.
Our rule of thumb when it comes to storage is that the boards should not be stored on the ground. Instead, store them on a level surface and under a protective cover.
About Celotex
Celotex is a leading British manufacturer of 25mm TB4000 PIR insulation. Founded in the early 1920s, the company has since evolved from a fibreboard insulation company to one that solely focuses on PIR insulation boards that offer excellent thermal performance.
The 25mm Celotex TB4025 insulation board is just one of many popular thermal insulation solutions in the Celotex product range.
The Celotex TB4000 PIR insulation range consists of thicknesses: 20mm, 25mm, 30mm, and 40mm, all of which are available for prompt delivery at a competitive price on our site.
Customer Reviews
Used this to better insulate my outer house walls ahead of next winter
came on time and the driver was really kind
Good service and insulation
Good quality insulation
The delivery was prompt and the product is good value for money.
Thank you for a good service and product
Arrive on time, thanks
Easy to cut and easy to install under my floor between the joists. The price and service were excellent too.
Great insulation, bought 50mm and 100mm also at a competitive price.
Used this to reduce thermal bridging around columns and worked a charm! Very good price too!
Really cheap and I had the boards delivered in 2 working days, thank you
I was recommended this thermal insulation from a friend because it was simple to cut and install
grand
good insulation
reduces thermal bridging
great
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