Celotex GA4000 Insulation Boards
(7 Products)Celotex GA4000 is a rigid polyisocyanurate (PIR) insulation board crafted to deliver outstanding thermal performance in walls, floors, and roofs. Its core is made of high-efficiency PIR foam, complemented by dual layers of low-emissivity aluminium foil that enhance thermal resistance. Boasting a thermal conductivity of just 0.022 W/mK, the GA4000 series ensures exceptional insulation, enabling buildings to easily comply with and exceed Part L of the UK Building Regulations. Whether you’re focused on energy efficiency, thermal comfort, or regulatory compliance, Celotex GA4000 stands as a dependable and versatile insulation choice.
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What Is GA4000?
The Celotex GA4000 range is a highly adaptable series of premium rigid polyisocyanurate (PIR) insulation boards, engineered to deliver exceptional thermal performance, moisture resistance, and long-lasting durability across a variety of building applications.
Ideal for use in floors, roofs, walls, and ceilings, these boards provide a comprehensive solution for enhancing the thermal efficiency of a building’s envelope. Their closed-cell structure not only minimises heat transfer but also resists moisture absorption, ensuring consistent thermal performance even in damp, humid, or condensation-prone environments. This makes the GA4000 series particularly well-suited for challenging areas such as roof voids, underfloor spaces, and external walls, where moisture management is critical.
A standout feature of the GA4000 range is its dual reflective foil facings, which significantly boost the insulation’s thermal efficiency. These facings act as a radiant barrier, reducing heat loss through radiation and mitigating thermal bridging. By reflecting heat back into the building, they help optimise energy efficiency, reducing both heating and cooling demands.
What Does GA Stand For?
The GA in GA4000 stands for General Application, meaning this insulation board is multi-purpose and suitable for a range of construction applications.
How GA Compares to Other Celotex Ranges
Celotex GA4000 is the ideal mid-range solution, delivering high insulation performance without excessive thickness or unnecessary complexity.
- GA (General Application) - Versatile insulation for walls, floors, and roofs, offering a perfect balance of performance and ease of use.
- TB (Thermal Bridging) - Designed for preventing cold spots in tight spaces where heat loss is a concern.
- XR (Extra Resistance) - Higher thickness insulation boards for maximum thermal performance in space-constrained projects.
Applications
- Roofs - Ideal for pitched roofs and loft insulation (between/over joists).
- Walls - Suitable for solid masonry, timber, and steel frame systems, including internal linings.
- Floors - Works with screed, concrete slabs, and timber joist constructions.
- External Walls - Used for timber frame sheathing and between frame studs for added insulation.
Benefits
- High-performance PIR insulation board offering excellent thermal efficiency for roofs, walls, and floors.
- Lightweight and rigid with a low thermal conductivity of 0.022 W/mK, minimising heat loss and improving energy efficiency.
- Faced with low-emissivity aluminium foil, enhancing thermal performance in cavity and solid wall applications.
- Versatile and easy to install, suitable for timber and masonry constructions, refurbishments, and new builds.
- Moisture-resistant closed-cell structure prevents water absorption, ensuring long-term durability and performance.
- Manufactured to high industry standards, meeting UK Building Regulations for thermal insulation compliance.
GA4000 Thicknesses
Frequently Asked Celotex GA4000 Questions
Are Celotex GA4000 Boards Suitable For All Types of Buildings?
Celotex GA4000 Boards are adaptable and commonly used in various residential and commercial buildings. However, it is always advisable to consult with a construction professional to ensure the product meets the specific needs of your project.
Are GA4000 Boards Environmentally Friendly?
Yes, Celotex GA4000 boards are manufactured with sustainability in mind. The boards use blowing agents with low global warming potential (GWP), helping to reduce the carbon footprint of the product. They also help improve the overall energy efficiency of a building, contributing to lower energy consumption and reduced greenhouse gas emissions.
How Do I Install Celotex GA4000 Boards?
To ensure maximum thermal performance, Celotex GA4000 boards should be installed according to the manufacturer’s guidelines. This typically involves fitting the boards tightly together without any gaps. The boards can be easily cut to fit specific areas, such as between joists or over structural elements, depending on the application. For the best results, it is recommended to consult a professional installer to ensure proper placement and achieve optimal performance.
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