25mm Celotex TB4025 PIR Insulation Board 2.4m x 1.2m
Free Delivery Over £500 excluding VAT
5% off!
25mm Celotex TB4025 PIR Insulation Board 2.4m x 1.2m
Free Delivery Over £500 excluding VAT
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Product Description
Product Description
Discover the exceptional thermal efficiency of Celotex PIR Insulation Boards, designed to meet your diverse insulation needs.
Celotex PIR Insulation boards are multi-purpose insulation boards, with high-performing energy efficiency and thermal conductivity.
Celotex PIR Insulation is an easy-to-install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing.
Celotex insulation boards come in a range of thicknesses from 20mm to 200mm, it can be considered for floor, wall, and roof applications.
Whether you're upgrading your home or constructing a new space, Celotex offers an insulation solution that combines high-performance with easy installation.
Key Features
- Multi-Purpose Utility: Ideal for roofs, walls, and floors across various settings.
- Superior Thermal Performance: Features a thermal conductivity of just 0.022 W/m.K, minimizing insulation thickness while maximising efficiency.
- Range of Thicknesses: Celotex PIR Insulation boards are available from 20mm up to 200mm, tailored for specific applications.
- Easy Installation: Lightweight and rigid, these boards simplify transport and fitting.
- Certified Quality: BBA certified (Certificate 17/5405) for use in pitched roofs, dry lining, and floor insulation applications.
Fire Classification
Euroclass F Reaction to Fire classification, according to BS EN 13501-1. Products with this level of classification are not provided with a rating for smoke emission.
Applications
Celotex PIR Insulation boards are versatile and can be used in a wide variety of applications including:
Roofs
- Pitched Roof Insulation - Between and Under Rafters
- Flat Roof Insulation - Balconies and Terraces
- Flat Roof Insulation - Between and Under Joists
Walls
- External Wall Insulation - Upgrading Cavity Walls
- External Wall Insulation - Timber Frame Walls
- External Wall Insulation - Solid Walls
Floors
- Ground Floor - Beam and Block Floors
- Ground Floor Insulation - Concrete Slab Ground Floors
- Ground Floor Insulation - Upgrading Concrete Slab Floors
- Ground Floor Insulation - Suspended Timber Floors
Why Choose Celotex?
- Environmental Performance: The TB4000 series achieves a BRE Green Guide Rating of A, supporting your BREEAM assessments.
- Enhanced Fire Safety: Euroclass F fire rating ensures safety without compromising on performance.
- Innovative Facer Technology: Low emissivity foil facing boosts thermal performance in sealed cavity air spaces.
Frequently Asked Questions About PIR Insulation
What is PIR insulation? PIR (polyisocyanurate) insulation is a type of thermal insulation material used in building and construction. It is known for its excellent thermal performance and high resistance to heat flow, making it an effective solution for reducing energy costs in homes and buildings.
Why is PIR Insulation so expensive? The cost of PIR insulation reflects its superior thermal performance and energy efficiency. The materials and technology used to manufacture PIR insulation are advanced, contributing to its higher price point compared to other insulation types.
Can PIR Insulation get wet? PIR insulation is generally moisture-resistant but not entirely waterproof. While it can withstand some exposure to moisture without losing its insulative properties, prolonged or excessive wetness can affect its performance. It's important to protect PIR insulation from water during installation and use.
Can PIR Insulation be recycled? Recycling PIR insulation can be challenging due to its chemical properties and the presence of fire retardants. However, efforts are being made to improve the recyclability of PIR products as part of the industry's commitment to sustainability.
How much PIR Insulation do I need? The amount of PIR insulation required depends on the specific energy efficiency goals, climate, and the area being insulated. It's best to consult with a professional to calculate the optimal thickness and quantity based on your particular needs.
How is PIR insulation made? PIR insulation is manufactured through a chemical reaction between a polyol and an isocyanate, forming a rigid foam board. This process involves the use of catalysts and blowing agents, which expand the material into a highly insulative foam with a closed-cell structure.
How does PIR Insulation work? PIR insulation works by trapping air within its closed-cell foam structure, significantly reducing heat transfer. This air barrier effectively minimizes the amount of heat that can pass through, helping to maintain a consistent indoor temperature and reduce energy consumption.
What is PIR Insulation made of? PIR insulation is made from polyisocyanurate, a type of plastic known for its excellent fire resistance and thermal properties. It typically features a foil facing to enhance its thermal resistance and moisture barrier.
How to cut PIR Insulation? PIR insulation can be cut using a sharp knife or a fine-toothed saw to fit specific measurements.
For precision cuts and to minimize onsite waste and mess, InsulationUK offers a bespoke cutting service. Customers can order PIR boards pre-cut to their exact specifications, ensuring a perfect fit and easier installation.
Key Considerations
When using Celotex insulation boards you need to satisfy yourself that the use of the product meets all relevant national Building Regulations and guidance as well as local, national, and other applicable standards relevant for your construction or application, including requirements concerning fire and applicable height restrictions.
Important Notice: Please be aware that during periods of high demand, we reserve the right to provide alternative brands that meet the same specifications and quality standards as the products you originally ordered.
Customer Product Questions
Customer Product Questions
Why does Celotex start with TB GA & XR? What do they mean?
Why does Celotex start with TB GA & XR? What do they mean?
What do the numbers mean in Celotex PIR insulation for example TB4020 or GA4100 or XR4200
What do the numbers mean in Celotex PIR insulation for example TB4020 or GA4100 or XR4200
What is an R value?
What is an R value?
How do you fix PIR insulation to a solid wall?
How do you fix PIR insulation to a solid wall?
How do you install PIR boards on a timber frame wall?
How do you install PIR boards on a timber frame wall?
How do I know what thickness of PIR insulation I need?
How do I know what thickness of PIR insulation I need?
Hi do I calculate a U value?
Hi do I calculate a U value?
It says the that PIR insulation is suitable for walls, can I use this as a cavity wall?
It says the that PIR insulation is suitable for walls, can I use this as a cavity wall?
Can you paint straight onto PIR boards?
Can you paint straight onto PIR boards?
Is cutting PIR insulation messy?
Is cutting PIR insulation messy?
If the PIR board has a foil facing do I need DPM?
If the PIR board has a foil facing do I need DPM?
Does the PIR board have writing on?
Does the PIR board have writing on?
I need to cut my PIR does it have any lines to ensure a straight cut?
I need to cut my PIR does it have any lines to ensure a straight cut?
Are PIR boards foil faced?
Are PIR boards foil faced?
What is the thermal conductivity of PIR?
What is the thermal conductivity of PIR?
What is PIR?
What is PIR?
Good To Know (The FAQ's)
Good To Know (The FAQ's)
Ordering & Delivery
How do I place an order with Insulation UK?
You can place an order for delivery anytime online. If you want to collect from our distribution centre in South Yorkshire then please email us your requirements at sales@insulationuk.co.uk
and we will send a payment link and collection instructions. If you can’t see what you are looking for or need more information, then call our team on 03003 034 578 and we can sort your order from there.
How do I know what’s happening with my order and when I will receive it?
When you have placed your order, you will then receive an email confirmation, giving you an order reference number and asking you to double check everything is correct on your order such as delivery address, quantities etc. If there are any amendments to be made, then please reply to your confirmation email with any details.
Once the team has processed the order you will receive an email with a BY delivery date, this is the latest date you will receive your delivery.
Your final email will be a 24/48hr notification, on the day of the delivery if you need a more accurate ETA then contact the office on 03003 034 578.
Do you offer next-day delivery?
Yes, we do on certain lines, you will see our next day delivery products marked as NEXT DAY. Order before 12pm for next day delivery (charges will apply)
How much does delivery cost and how long will it take?
Standard delivery is £50 + VAT for all orders below £500 excluding VAT, above £500 excluding VAT delivery is free. Bespoke deliveries can be made but will incur charges. Each product page gives you an estimate delivery by date. For more accurate information call the team on 03003 034 578
Can I choose a specific delivery date or time slot?
We will endeavour to try and accommodate a preferred date, if you need a delivery on a certain day, then please call our team on 03003 034
578.
Do you deliver nationwide?
We deliver across most of the UK; however, some postcodes are restricted due to their location. Check out our delivery map for more information. If you find that you are in area we don’t deliver to, we have access to a wide range of haulage options, please call the team on 03003 034 578 to discuss your requirements further.
Will the driver help unload the insulation products?
Most of our deliveries are made with vehicles with mechanical off-load (known as a moffett or fork-lift), the driver will leave them in a safe place of your choice. They will help as much as they are allowed but are not insured to bring anything into a property.
What happens if my order arrives damaged or incomplete?
In the unlikely event your order arrives damaged, then please contact within 48 hours at sales@insulationuk.co.uk with any images of the damage and the team will be in touch. If there is anything missing, then notify the team within 48 hours on 03003 034 578
What if my order doesn’t arrive and I have paid for trades to be on site, can I claim anything towards the costs I have incurred?
We advise not to have trades booked in and around the day of your delivery. Things can happen beyond our control, and your delivery may be delayed or abandoned. We cannot be held liable for any consequential loss such as tradesman wages etc.
Product Advice & Support
How do I know which insulation product is right for my project?
With such a variety of insulation products, we fully understand making sure you have the right one can seem daunting. Our team have over 50 years of experience in the construction industry and there isn’t a question they haven’t been asked! Speak to our technical team on 03003 034 578 and they will be happy to offer some help and guidance.
Do you offer technical advice or support before I buy?
Yes we do! Just call 03003 034 578 and ask for our technical team and we will be happy to support you.
Can I speak to someone to confirm product specifications?
Of course you can! There is also a range of data sheets and guides available on the product pages under Technical Information.
Are your products suitable for both DIY and trade customers?
Yes, they are. If you are new to DIY projects involving insulation,
then we advise to always do your research. We have a handy guides section which may help.
Do you offer fire-rated or eco-friendly insulation options?
Yes, we do. Fire ratings are indicated in the specification table on the product page, and our sustainable range is continually growing.
Pricing & Payments
Do you offer trade or bulk-buy discounts?
We always aim to offer the best price online; however we do offer project pricing for larger orders, speak to our sales team with your requirements on 03003 034 578.
What payment methods do you accept?
We accept all major cards including American Express, as well as Apple Pay, Google Pay and PayPal
Can I set up a trade account with credit terms?
We do offer trade accounts, however there are certain criteria we ask for, and any credit account application is subject to credit checks. Call the team on 03003 034 578 to discuss any credit applications.
Do your prices include VAT?
The website has a toggle at the top right of the page so the prices can be displayed including and excluding VAT. VAT, where applicable, is charged at checkout.
Returns & Cancellations
Can I return unwanted insulation products?
Contact the team via email sales@insulationuk.co.uk with the items you wish to return and any other information. Please note if we you need us to collect any unwanted items,
a collection fee will apply.
How do I arrange a return or exchange?
Contact the team via email sales@insulationuk.co.uk or check out our refund policy.
Are there any restocking fees?
Restocking charges will apply in certain instances, please contact the team via email at sales@insulationuk.co.uk check out our refund policy.
What if I’ve ordered the wrong product or size?
Contact the team via phone or email as soon as possible.
Installation & Compliance
Do you offer installation services or just supply materials?
We do not offer any installation services; we are a supplier of insulation and building materials.
Can I get a datasheet or certificate of performance for your products?
Yes, data sheets can be found in the Technical Information drop down on the product page.
How should I store insulation products before installation?
There are a variety of insulation products each with their own storage instructions. Generally, please keep them off the ground, in a dry area, away from the elements.
Sustainability & Quality
Are your insulation products environmentally friendly?
This depends on the individual products, data sheets are available,
and any environmental benefits are noted on the product pages.
Do your products help reduce energy bills?
The correct insulation properly installed can reduce heat loss from a building and therefore help reduce energy costs.
Are your products made in the UK or imported?
With such a wide variety of products some are made in the UK and some are imported.
Customer Service & Support
How can I contact your support team?
By phone on 03003 034 578, email sales@insulationuk.co.uk or via our
webchat online
What are your opening hours?
Monday to Friday 8am to 5pm for sales and technical support, orders can be placed on line 24/7
How quickly can I expect a reply to my enquiry?
We aim to respond to our customers as quickly as possible.
Technical Information
Technical Information
Customer Reviews
Customer Reviews
Specifications
- Brand:
- Celotex
- Length:
- 2400 mm
- Width:
- 1200.0 mm
- Thickness:
- 25.0 mm
- Material:
- Polyisocyanurate
- Unit Coverage:
- 2.88 M²
- Manufacturers Part Number:
- TB4025
- Thermal Conductivity:
- 0.022 W/mK
- R Value:
- 1.1 M²K/W
- Compressive strength:
- 120 kPa
- Edge Type:
- Square Edge
- Fire Classifications:
- Euroclass F
- Weight Per Item:
- 2.74 kg
- Qty Per Pallet:
- 96 Items
- Sqm Per Pallet:
- 276.48 M²
- Applications:
- Wall, Floor, Roof
