The 25mm Celotex TB4025 PIR Insulation Board is a high-performance thermal insulation solution designed to combat thermal bridging in floor, wall, and roof applications. It features composite foil facings and has a thermal conductivity of 0.022 W/m.K, providing maximum thermal efficiency. This BBA-certified insulation board is 2400mm x 1200mm in size and is suitable for various construction types.

It is a fibre-free rigid polyisocyanurate (PIR) insulation board with aluminium foil composite facings on both sides. The PIR core is manufactured using blowing agents with zero ozone depletion potential (ODP) and low global warming potential (GWP), making it an environmentally friendly option. The low emissivity foil facings improve thermal conductivity in sealed cavity air spaces.

Specifications

• Material: PIR
• Thickness: 25mm
• Width: 1200mm
• Length: 2400mm
• Purchase Unit: Board
• Coverage: 2.88m2
• Manufacturer's Code: TB4025
• Weight: 0.95kg/m2
• Thermal Conductivity: 0.022W/mK

Performance

The 25mm Celotex TB4025 PIR Insulation Board has excellent thermal conductivity of 0.022 W/m.K, providing maximum thermal efficiency. It effectively eliminates thermal bridging and helps maintain a comfortable indoor temperature. The low emissivity foil facings improve thermal performance in sealed cavity air spaces, reducing heat loss and improving energy efficiency. The board is BBA-certified and complies with UK Building Regulations.

Features and Benefits

• High-performance thermal insulation: Provides excellent thermal insulation properties, helping to reduce heat loss and improve energy efficiency.
• Composite foil facings for improved thermal conductivity: The foil facings enhance the insulation's ability to reflect heat, improving its overall thermal conductivity.
• Effectively eliminates thermal bridging: Minimizes the transfer of heat through structural elements, preventing thermal bridging and maintaining a consistent temperature within the building.
• Environmentally friendly with zero ODP and low GWP: The insulation board has zero ozone depletion potential (ODP) and a low global warming potential (GWP), making it a sustainable choice for environmentally conscious projects.
• Easy to handle and install: The lightweight and rigid nature of the insulation board makes it easy to handle and install, saving time and effort during the construction process.
• BBA-certified: The insulation board is certified by the British Board of Agrément (BBA), ensuring its quality, durability, and compliance with building regulations.
• Achieves a BRE Green Guide Rating of A: The insulation board has been rated A by the Building Research Establishment (BRE) Green Guide, indicating its high environmental performance and contribution to sustainable construction.
• Excellent fire performance: The insulation board has excellent fire resistance properties, providing added safety and protection in case of fire.
• Reduces condensation risk: The insulation board helps to minimize condensation by maintaining a consistent temperature and preventing moisture buildup within the building envelope.
• Durable and long-lasting: The insulation board is designed to withstand the rigors of construction and provide long-lasting thermal insulation performance, ensuring the building's energy efficiency for years to come.

Applications

• Roof Insulation: The Celotex TB4025 PIR Insulation Board is commonly used for insulating roofs. It helps in reducing heat loss, thus maintaining a comfortable temperature inside the building.
• Floor Insulation: This product is also used for insulating floors. It provides a thermal barrier between the ground and the building, preventing cold air from seeping in.
• Wall Insulation: The Celotex TB4025 PIR Insulation Board can be used for insulating walls. It helps in maintaining the internal temperature of the building, reducing the need for heating or cooling.
• Loft Insulation: This insulation board is ideal for insulating lofts. It helps in preventing heat loss through the roof, making the loft space more usable.
• Cavity Wall Insulation: The Celotex TB4025 PIR Insulation Board can be used for insulating cavity walls. It helps in reducing heat loss through the walls, improving the energy efficiency of the building.
• Underfloor Heating: This product can be used in conjunction with underfloor heating systems. It helps in evenly distributing the heat, enhancing the efficiency of the heating system.

Installation

The 25mm Celotex TB4025 PIR Insulation Board is easy to install. It can be cut to size using a fine-toothed saw or insulation knife. The boards should be tightly butted together and fixed in place using appropriate fixings. It is recommended to follow the manufacturer's installation guidelines for best results.

Certifications

• Spread of flame: Euroclass E Reaction to Fire classification
• Compressive Strength: 140kPa
• Thermal conductivity of 0.022 W/m.K
• BRE Green Guide Rating of A
• BBA certified

Equivalent/Related Products

• 25mm Kingspan Kooltherm K108 Cavity Board
• 25mm Ecotherm Eco-Versal PIR Insulation Board
• 25mm Xtratherm Thin-R PIR Insulation Board

About Celotex

Celotex is a leading British manufacturer of PIR insulation. With a focus solely on PIR insulation boards, Celotex offers a range of high-performance thermal insulation solutions. The 25mm Celotex TB4025 PIR Insulation Board is one of the popular products in their range, known for its excellent thermal performance and environmental credentials. Celotex is committed to providing innovative insulation solutions that meet the needs of the construction industry.

Product Specifications

• Brand: Celotex
• Compressive Strength: ≥120kPa - BS EN 826
• Coverage: 2.88m2
• Length: 2400mm
• R Value: 1.10m2K/W
• Spread Of Flame: Class 1 - BS 476-7
• Thermal Conductivity: 0.022W/mK
• Thickness: 25mm
• Water Vapour Resistance: >150MNs/G - BS EN 12086: Method B
• Material Type: PIR
• Width: 1200mm
• Sales Unit: 2.88m2
• Sales Unit Coverage: 2.88m2
• Weight: 0.95kg/m2
• Protection type: 1
• Use Case: 1
• Hot: true
• Best Seller: 1

-Datasheet 1 -Datasheet 2

SERVICED LOCATIONS

We offer our customers free delivery* when you spend £400 plus vat or more. For orders less than £400 ex VAT there is a delivery charge of £75 ex VAT. This will be calculated within the checkout process. We only accept orders Monday through Friday. We do not provide delivery on weekends.

Currently affected areas : IP, NR, CA, TD, CT, PO, SO, BH, DT, EX, PL, SP, TA, TQ, TR, LL, HR, SY **

This is currently due to the lack of availabily of drivers in these service areas and limited supply in these areas, thus a custom shipping service charge may apply. (£250). Please use the shipping calculor to give you an accurate shipping price based on your post code. We apologise in advance if this occurs for your order. Before placing an order please get in touch with the team and we will see if anything can be done for your order specifically.

There are parts of the UK that we don't deliver to and this will be marked at checkout. (N Ireland and Scotish Highlands). If this occurs upon your checkout, please reach out the team and we will see what we can do via a 3rd party supplier.

PREFERED DELIVERY TIMES

We offer this service to alleviate confusion for you and reduce communication for us all. It gives us an idea on when you would the order to be delivered. It is NOT a garaunteed delivery date.

We understand scheduling of larger materials to your project is important, thus having your preference is very helpful for us. Please note this works in tandem with the availability of the product. We can NOT fulfill any orders before the avability days set on the product, even if the date insert tool allows it.

There may be situations where if specified a preference date is given, we may not always be able to deliver on that date. As it also linked to you delivery location, the closest warehouse logistics rotar, availability of the product and more. We have simply offered this to help our customers out, please be reasonable with your expectations in these difficult times. We WILL do our best to comunicate accurate delivery times via phone or email after the order is placed, so no need to worry.

After you specified a date we will do our best to deliver on that date, you will be notified within 24-48 hours if we can not fill that day but will strive to get a slot as close as possible to that date. We do not deliver on weekends, so all orders specified with weekend delivery will be shifted to the week after.

On weekdays, our cut-off time for purchases is 1 p.m. Orders must be placed by 1 p.m. on Monday through Thursday to be delivered the next day if they are applicable for next day. For example, an order placed after 2 p.m. on Friday will be sent out on Monday afternoon (if it is not too late).

PRODUCT DELIVERY TIMES

The vast majority of our orders are dispatched within 2–5 working days. However, if you need a customized or bespoke item, things will take longer to arrive. Some goods are on allocation or short supply as a result of COVID 19 and the Brexit. We may be forced to offer an equivalent high-quality substitute product at no extra cost to our customer from time to time.

The delivery charge is applied for shipments to England. If you live in Scotland or Wales, one of our customer care specialists will contact. We do everything we can to make sure packages arrive on the date promised.

If you change the delivery date given at the time of purchase, you will be notified by email or phone. We reserve the right to charge a failed delivery fee if access is restricted for the car specified on the order, and a delivery cannot be completed.

Every transaction is recorded, and the delivery fees are determined on whether or not the recipient is ready to receive the package. This covers manual or automated offloading of heavy items. Offloading equipment, such as a tail lift or forklift, may be requested; however, there may be an additional fee if the site is difficult to access or the products are of considerable size..

On weekdays, our cut-off time for purchases is 1 p.m. Orders must be placed by 1 p.m. on Monday through Thursday to be delivered the next day if they are applicable for next day. For example, an order placed after 2 p.m. on Friday will be sent out on Monday afternoon (if it is not too late).

RESTRICTED ACCESS

If We Or A Supplier Attempt A Delivery And Customer Refuses To Deliver, We Are Not Liable For Any Losses Incurred As A Result Of Our Failure To Notify Us Or The Supplier About Any Access Limitations

At The Time Of Placing The Purchase Or 24 Hours Before Delivery. Delivery Will Be Managed With Below Partners Or 3rd Party Fulfilment.

ACCEPTING YOUR DELIVERY

Upon receiving your delivery, please thoroughly examine all items before signing.

If you notice any issues, such as damage or defects, please refuse the delivery and get in touch with us immediately by calling 02039 916 406 or email sales@londonbuildingsupplies.co.uk.

Important Reminder: Deliveries signed as “unchecked” will be considered to have been received in good condition.

Once your order is delivered to the specified address, responsibility for any loss or damage is transferred to you.

We believe in keeping our pricing transparent. Rather than embedding transport costs into product prices, we calculate carriage charges based on the size and weight of your order. These charges are clearly displayed separately during checkout, ensuring clarity and fairness.