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Celotex range

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Celotex

Celotex

(4 products)

Our Celotex range delivers superior thermal efficiency for both residential and commercial buildings. Ideal for new construction or refurbishments, these products offer reliable insulation from floors to roofs. Known for innovation and quality, Celotex provides exceptional performance at competitive prices. Explore our selection to find the ideal insulation for your next project.

Celotex’s Range of Products

Celotex insulation solutions deliver exceptional thermal performance across various applications. 

For floor insulation, the GA4000 and XR4000 boards are ideal for ground, suspended timber, and concrete slab floors, offering high compressive strength and moisture resistance. The TB4000 board is also suitable for specific applications where a thinner profile is required.

For pitched roofs, the GA4000, TB4000, XR4000, and PL4000 boards are available. The GA4000 and XR4000 are suitable for insulation between and over rafters, while the TB4000 provides a thinner profile for flexible applications. The PL4000 combines insulation with plasterboard for a finished surface.

For wall insulation, Celotex provides GA4000, TB4000, XR4000, and PL4000 boards. For cavity walls, Thermaclass Cavity Wall 21 is available for full-fill applications, offering a low emissivity foil facing and a thermal conductivity of 0.021 W/m.K. Additionally, the CW4000 board is ideal for partial-fill, ensuring dependable thermal performance and easy installation.

Benefits of Celotex PIR Insulation

Celotex PIR insulation boards are suitable for various construction types, offering optimal thermal performance that helps reduce energy consumption and enhance building comfort. The superior lambda values of Celotex products allow for thinner insulation layers without sacrificing performance. Upgrade your project with high-quality PIR insulation solutions from National Insulation Supplies.

What sizes do Celotex Insulation Boards come in and what's popular?

Celotex insulation boards are typically available in a standard size of 2400mm x 1200mm, with a wide selection of thickness options to suit different applications like flooring, walls, and roofing projects. Thicknesses range from 20mm to 200mm, covering popular choices such as 25mm, 50mm, 75mm, 100mm, and 150mm.

The most commonly chosen sizes are:

  • 100mm, which is ideal for high-performance insulation in roofs and lofts.
  • 50mm, perfect for insulating floors and walls where space might be constrained but good thermal efficiency is needed.
  • 25mm, useful in narrower cavities or specific areas requiring thinner insulation.

In addition, the CW4000 and Thermaclass Cavity Wall Boards, have a narrower width of 450mm to ease fitting within cavity walls, making them a practical solution for such construction projects.

Uses of Celotex Thermal Insulation

Celotex provides versatile insulation solutions ideal for diverse construction projects. Advanced technology and innovative design ensure exceptional thermal performance and durability. Key applications include:

  • Roofs and Ceilings: Perfect for both pitched and some flat roof applications, creating an effective thermal barrier that minimizes heat loss and maximises energy efficiency.
  • Walls: Celotex offers premium options for cavity walls, timber frame walls, and internal wall insulation, enhancing energy efficiency with a slim profile.
  • Floors: Suitable for ground floors, suspended timber floors, and concrete slab floors, Celotex products prevent heat loss and improve energy efficiency with their high compressive strength and moisture resistance.
  • Loft Insulation: Easy-to-install solutions for loft spaces ensure effective insulation, reducing heat loss and lowering energy bills.

Frequently Asked Questions

Is Celotex the best insulation?

Celotex is a top choice for insulation due to its excellent thermal efficiency, with products reflecting over 90% of radiant energy. It excels in managing heat loss, especially in high moisture environments. While it is highly effective, the best insulation depends on your specific needs, building type, and budget. For many applications, its combination of performance and durability makes it a leading option.

Can I insulate my loft with Celotex?

Yes, you can insulate your loft using Celotex products. Loft insulation involves placing material between the joists in a pitched roof space to minimize heat loss from the building below. Celotex offers various options designed for effective loft insulation, enhancing energy efficiency and reducing heating costs.

What is the difference between Celotex and Kingspan?

Celotex and Kingspan are leading insulation brands, but they differ in their offerings. Celotex specialises in PIR (polyisocyanurate) insulation boards, known for excellent thermal performance and moisture resistance. Kingspan, on the other hand, offers both PIR and phenolic insulation. Their Kooltherm range, made from phenolic foam, provides superior thermal performance and fire resistance, while their Therma range is similar to Celotex's PIR boards. The choice between them depends on your specific needs, such as thermal efficiency, fire safety, and budget.

Does Celotex keep heat out?

Yes, Celotex insulation effectively keeps heat out during the summer. Its advanced PIR technology helps to maintain cooler indoor temperatures by reducing heat transfer, which also decreases the need for air conditioning. For example, even a 20mm Celotex PIR board offers excellent performance in both timber frames and masonry walls, helping to keep your space cooler and more comfortable in hot weather.

Can I order Celotex insulation in bulk?

You can! At Nationational Insulation Supplies, we offer Celotex bulk deals across the entire range so can you save money on a big project. To order in bulk, simply fill out our bulk order form and we'll take care of the rest! Alternatively, feel free to call us at 020 3004 5451 and our sales team will be happy to assist. 

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