Celotex
100mm Celotex GA4100 2.4m x 1.2m
100mm Celotex GA4100 2.4m x 1.2m
SKU:100mm Celotex
Est Delivery between 6th Feb and
12th Feb.

Add £300£360 worth of Celotex to your order to unlock FREE delivery.
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project
Couldn't load pickup availability
- Shipping protection for peace of mind
- Fast processing and delivery
- Flexible delivery options


Product Information
Celotex is a multi-purpose insulation board that provides solutions to overcome cold spots in walls / floors / roofs / cavities etc that can be created from the lack of insulation in some areas. Featuring foil facings, this board has been manufactured from tough polyisocyanurate (PIR) by using a perfect mix of certain blowing agents which acquires zero ozone depletion potential (zero ODP) and a low global warming impact. In other words this product is easy on the environment.
Introducing the 100mm Celotex GA4100 Insulation Board - your versatile solution to combat cold spots and enhance insulation efficiency across walls, floors, roofs, and cavities. Manufactured from durable polyisocyanurate (PIR), this board boasts exceptional performance with a low global warming impact, showcasing its eco-friendly design.
Addressing energy wastage, this PIR insulation minimizes the need for excess heating or air conditioning, ensuring both reliable and long-term energy savings. Its impressive thermal conductivity of 0.022W/mK guarantees superior insulation results. What's more, Celotex's A+ rating from the BRE Green Guide and BBA certifications (95/3197 and 09/4667) attest to its quality.
Crafted for efficiency, the 100mm Celotex GA4100 is thoughtfully sized at 2.4m x 1.2m for easy installation between cavity wall ties. Its sturdiness ensures it won't break during handling, and its lightweight nature simplifies unloading. With excellent fire reaction and the ability to meet current and future Building Regulations, this cost-effective solution promises enduring performance that benefits both your space and the environment.
Key Features:
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Features a good reaction to fire when measured in accordance with new European standards
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Comes in conveniently sized boards for installation between cavity wall ties
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A very cost effective insulation
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Very strong product that will not break easily
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Easy to install and handle
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Keeps performing long after it is installed for many many years
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Lightweight product and easy to unload off a truck
Dive into a range of Celotex products, each tailored to meet specific insulation requirements. Whether you're focusing on walls, roofs, or floors, these solutions offer durability, performance, and long-term cost savings.
Pros & Cons
Pros
- Features a good reaction to fire when measured in accordance with new European standards
- Comes in conveniently sized boards for installation between cavity wall ties
- A very cost-effective insulation
- Very strong product that will not break easily
- Easy to install and handle
- Keeps performing long after it is installed for many many years
- Lightweight product and easy to unload off a truck
Frequently Asked Questions
The Celotex GA4100 is made from robust polyisocyanurate (PIR) insulation material, which provides efficient thermal insulation.
Yes, the Celotex GA4100 insulation board features a low global warming impact and zero ozone depletion potential, making it an environmentally conscious choice.
The Celotex GA4100 is suitable for various applications, including walls, floors, roofs, and cavities. It performs well in both timber frame and masonry walls.
Yes, the Celotex GA4100 has achieved an A+ rating in the BRE Green Guide and holds certifications from BBA certificate numbers 95/3197 and 09/4667.
The Celotex GA4100 board features a good reaction to fire when measured according to European standards, ensuring safety in various applications.
Technical Specifications
Brand | Celotex |
Coverage | 2.88m2 |
Length | 2400mm |
Material type | Polyiso |
Thermal conductivity | 0.022 W/mK |
Thickness | 100mm |
Width | 1200mm |
Datasheets
Delivery Information
Est Delivery between 6th Feb and
12th Feb.


Delivery will always take place on a weekday (Mon - Fri excl. public holidays).
An exact delivery charge will be calculated at checkout based on your order and location.
Frequently asked questions
How do I track my order?
As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.
If you require an update on your order, you can email customerservice@i4lgroup.co.uk with your order number for assistance.
Can I order now and pay later?
Yes, we offer a variety of flexible payment options to all our customers.
When checking out online, you'll be able to avail of multiple buy now, pay later options with Klarna or PayPal.
The flexible payment options available to you at checkout will be based on the total value of your order.
For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:
- Dedicated trade pricing
- Loyalty points and rewards
- A dedicated account manager
Do you really have the best prices online?
Yes! We even have a price match guarantee.
We are so confident that we have the best prices out there that we will match the price of any other online or local retailer.
If you find the same product cheaper elsewhere, we will match the price — just send us the quote or website link.
Read more: Price Match Guarantee
I have a large-scale project, can I get a quote?
Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@i4lgroup.co.uk with the following information and we will get back to you with your very own bespoke price quote:
- Delivery postcode and address
- Mobile number
- Company name
- A list of required materials and their quantities
Learn more on opening a trade account.
Can I open a trade account?
Yes! Trade customers can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.
You can learn more here: Open a Trade Account
Can I cancel or amend my order after placing it?
Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.
Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.
Contact us immediately via customerservice@i4lgroup.co.uk or call 020-3481-1978 during opening hours.
If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.
Read more: Returns
What is your returns policy?
Changed your mind about your order? no problem! we offer a 14 day returns period after your order is delivered.
To avail of this your order must be unused, in its original packaging, and suitable for resale.
Refunds are issued immediately after the goods are received and inspected by our team.
If an item arrives damaged or incorrect, you must notify us within 48 hours of delivery.
Prior approval is needed before returning any goods – do not return without authorization.
Special order items are exempt from returns.
Read more: Returns
Why Choose Us?
Factors |
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Other Stores |
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Customer service | Easy to reach, and eager to help | Difficult to contact |
Shipping speed | Fast and organised | Unpredictable |
Competitive pricing | Price match guarantee | What you see is what you get |
Loyalty program | Points + exclusive deals | Basic discounts |
Expert advice | Free 1-on-1 sessions | Self-service only |
Trade accounts | Bespoke pricing, trade credit, and dedicated account manager | none available |