Easy Installation
Very satisfied with this insulation. Easy to install and highly effective. Excellent customer support.
Raj
Trust Pilot Rated 4.6
Free Delivery Over £500 ex vat
Trust Pilot Rated 4.6
Free Delivery Over £400 ex vat
Trust Pilot Rated 4.6
Free Delivery Over £400 ex vat
SKU: CLO-51400
Safe & Secure Payments
The 120mm Celotex XR4120 PIR Insulation Board is a high-performance thermal insulation board with composite foil facings. It is designed to minimize heat loss and create a thermal barrier in various applications such as roofs, floors, walls, and timber joists.
Part of the XR4000 range, the 120mm Celotex XR4120 offers "Extra Resistance" to heat transfer. It is made from rigid polyisocyanurate (PIR) using blowing agents with zero ozone depletion potential (zero ODP) and low global warming potential (GWP). With a low thermal conductivity of 0.022 W/m.K, it meets the current and future requirements of the Building Regulations.
The Celotex XR4120 PIR Insulation Board offers excellent thermal performance with a thermal conductivity of 0.022 W/mK. This allows for low U-values without the need for additional insulation layers. It is moisture-resistant and provides reliable long-term energy savings for buildings.
The Celotex XR4120 PIR Insulation Board is lightweight and easy to handle. It can be easily cut and shaped to fit the desired application. For best results, follow the manufacturer's installation guidelines and ensure proper fixing and sealing to achieve maximum thermal performance.
The 120mm Celotex XR4120 PIR Insulation Board meets various British and European Standard Specifications. It has a Euroclass E Reaction to Fire classification for spread of flame according to BS EN 13501-1. It also has a thermal conductivity of 0.022 W/m.K, meeting BS EN 12667. Additionally, it has a BRE Green Guide Rating of A for sustainability and is BBA certified.
Celotex is a leading British manufacturer of PIR insulation. The XR4120 insulation board is part of the Celotex XR4000 product range, which includes various thicknesses from 110mm to 150mm. Celotex boards are manufactured with quality management systems and are water vapor resistant. They help achieve lower U-Values, energy use, and carbon dioxide emissions targets set by national building regulations.
Orders under £250 Ex VAT
Orders between £250 - £500* Ex VAT
Orders over £500 Ex VAT
We offer tiered delivery pricing to keep things clear and transparent. Delivery charges are calculated based on your order total before VAT and will be shown clearly at checkout. We are a TRADE SITE built for larger orders with keen pricing to match.
if the charge is higher than this or your post code is coastal / hard to get to, it could be out of our delivery zone. Get in touch and we can assist. 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.
Standard Dispatch Times
Orders must be placed by 1:00 PM Monday to Thursday to be eligible for next-day dispatch (where applicable). Orders placed after 1:00 PM on Fridays will be processed the following Monday. All products have the availability days marked, so use this as a guide.
We offer this service to alleviate confusion for you and reduce communication for us all. It gives us an idea on when you would like the order to be delivered.
It is NOT a garaunteed delivery date. Picking next day WILL NOT get you next day - unless you pay for it.
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. We WILL do our best to comunicate accurate delivery times via 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.
If you need to reschedule your delivery, let us know as soon as possible. You’ll be notified of any changes via email or phone. We can not change delivery dates if you leave it within 24 hours of confirmed booked date.
Someone must be on-site to sign for and assist with unloading materials. All deliveries are kerbside only. Upon delivery:
Important: Signing a delivery as “unchecked” means the goods are accepted in good condition.
Responsibility for goods transfers to you upon delivery. We reserve the right to charge a failed delivery fee if access is restricted for the vehicle specified on the order, Redelivery charges are £50 ex vat. Collection charges are £50 ex vat
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 we have a parking / access restrictions or the products are of considerable size..
We may be forced to offer an equivalent high-quality substitute product at no extra cost to our customer from time to time give the UK market conditions and stock supply in your area. They will be like for like and be chose by you with the liability on person orders if chosen on the option to accept yes is marked.
Our suppliers reserve the right to refuse to make a delivery, if you have not informed either us or the supplier of any access restrictions at either the time of placing the order or 24 hours before the delivery.
Restricted access includes, but is not limited to: double yellow lines, a red route, narrow lanes, steep hills, low bridges, or width restricted
At The Time Of Placing The Purchase Or 24 Hours Before Delivery. Delivery Will Be Managed With Below Partners Or 3rd Party Fulfilment.
155,000+
Product items shipped2958+
Successful orders98%
Customer satisfaction69%
Repeat Trade Order RateExperience the Builders Insulation Difference
Affiliations
Very satisfied with this insulation. Easy to install and highly effective. Excellent customer support.
Raj
25th Jul 2024
Excellent quality and easy to handle. the team provided fantastic service and fast shipping.
Vikram
23rd Jul 2024
Great product, very effective. the team made the process simple with prompt delivery.
Jozsef
28th Jun 2024
High-quality insulation board. Easy to work with and very effective. the team provided fast shipping.
Sebastian
18th Jun 2024
The service was very helpful and got my order on time!
Milica
4th Jun 2024