Nationwide Delivery

Knowledgeable Staff

Outstanding Service

Secure payments

Celotex Insulation Board 1.2m x 2.4m x 100mm

SKU: GA4100

£39.82 Incl. VAT
£33.18 Ex. VAT

Pay in 3 interest free payments with PayPal on checkout. Choose PayPal at checkout. Learn more
Estimated Delivery: 3-5 working days. Please note, if you live in Scotland contact us so we can quote you for delivery


Explore the benefits of Celotex Insulation Boards in the size 1.2m x 2.4m x 100mm. This user-friendly PIR (polyisocyanurate) insulation board ensures effortless installation and delivers exceptional thermal performance. Versatile for various applications, including roofs, walls, and floors, this insulation board is a versatile solution.

With a thermal conductivity of just 0.022 W/m.K, Celotex Insulation Board allows for a reduction in insulation thickness while still achieving the desired U-value. The low emissivity foil facing enhances thermal performance within sealed cavity air spaces, contributing to an improved achievable U-value. Rest assured, this board is BBA certified, guaranteeing its quality and reliability.

Cutting and shaping this insulation board is simple, making the installation process exceptionally straightforward. Upgrade your insulation with Celotex for an efficient and effective solution that fulfils your thermal performance requirements. Choose Celotex Insulation Boards for superior insulation performance without compromising on quality.

Why Choose Celotex Insulation Board?

  • Is suitable for use in a number of applications including roof, wall and floor systems
  • Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces
  • Is easy to cut and shape
  • Can be used to improve reliable long-term energy savings for buildings
  • Is certified under BBA certificate number 17/5405 and 16/5352

Product Specifications

Celotex product code: GA4100

Thickness: 100mm

Length: 2.4m

Width: 1.2m

Board coverage: 2.88m²

R-value (m²K/W): 4.15

Thermal conductivity: 0.0022 W/mk

Spread of Flame: Class 1 BS 476-7:1997

Deliveries are made on the basis the customer can accept the goods, or willingness to off load the goods, or having means of mechanical offload, this also applies to heavier items such as pallets etc. All deliveries are made ‘kerbside’ and often it can be at the discretion of the driver. A large majority of deliveries would be made on a large rigid tail-lift vehicle and off loaded via a pallet truck and only on to flat surfaces such as tarmac, concrete and pavers. If you do have restricted access, please contact us prior to placing your order. We will always try to accommodate your needs. If a delivery fails due to access, we reserve the right to make a re-delivery charge. All delivery charges are calculated when checking out. The delivery charges included are for the Mainland UK only and do not apply to the Scottish Highlands, or Isles off the Mainland. Additional charges may apply for deliveries that aren’t classed within the Mainland (this is classed by ourselves, suppliers and couriers) Please contact us on 01752 466151 or Due to the nature of our business model, this can mean your order will be sent via multiple deliveries. Whilst we will make every effort to deliver your goods within the stated/requested time frame, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules, so we would recommend the end user not to start/schedule any work until the goods arrive. Due to logistics of various couriers and suppliers we are unable to give times of deliveries. However, please call or email us on the day of the delivery and we will try to get an approximate time. Deliveries can take place from as earlier as 07:30 right up to 18:00 depending on the courier/haulier and taking into account local traffic etc.
You have 14 days from receiving your item(s) to return them should you wish to do so. Please contact us should you wish to arrange a refund/return. Any product marked cut to size, bespoke or made to order are non returnable and excluded from our refund policy.

Have a Question?

Be the first to ask a question about this.

Ask a Question

Payment & Security

Apple Pay Google Pay Maestro Mastercard PayPal Shop Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.