Celotex stands out as a prominent brand leader well known for their range of innovative products and commitment to reliability and quality. Celotex has a rich history and strong portfolio of quality high-performance insulation solutions and has become a well trusted and popular name among builder, contractors, architects, and homeowners alike. The Celotex product range features a comprehensive selection of insulation materials designed to meet the needs of various insulation application methods and environments.
Celotex by Soprema History
Celotex’s journey began in 1925 establishing its brilliant reputation through a dedication to cutting-edge technology and quality materials, from humble beginnings to becoming global leaders. Originally part of a larger corporation, Celotex evolved into its own brand specialising in thermal insulation. Over the years the brand has adapted to the forever changing demands of the construction industry, making sure products meet building regulations and standards for energy efficiency and environmental obligations. Originally owned by Saint-Gobain, Celotex has transitioned from Saint-Gobain to Soprema in 2023.
At the heart of Celotex’s operations is sustainability and the commitment to reducing its environmental footprint through a variety of initiatives such as sourcing raw materials responsibly, reducing waste, and ensuring products improve the thermal efficiency of buildings. Celotex insulation has been used within a wide selection of high-profile projects across a variety of sectors from residential developments to large-scale commercial buildings and infrastructure projects. Whether you are a builder, homeowner, architect, or contractor, choosing Celotex is to choose reliability and quality products whilst contributing to a more energy efficient environment.
Celotex by Soprema Multi Purpose Boards
Celotex PIR Insulation boards are at the core of the Celotex brand product range, made up of rigid Polyisocyanurate (PIR) and bonded to aluminium foil facings on each side. The boards are available in sheets of 2400mm by 1200mm in a variety of thickness between 20mm to 200mm to meet specific thermal installation requirements. The boards can be applied to a variety of applications including walls, floors, pitched roofs and flat roofs in a variety of methods including mechanical fixings, dot and dab method, timber and metal frame applications and friction fit within both residential and commercial properties. The Celotex PIR insulation board ranges include TB4000, GA4000, and XR4000. The PIR Insulation Boards are lightweight and easy to cut, handle, and install whilst providing excellent thermal conductivity and high performing energy efficiency. The boards require little to no upkeep once installed and are commonly paired with plasterboards, an alternative product is Celotex insulated plasterboards.
Celotex By Soprema Insulated Plasterboard
Insulated plasterboards are a combination of PIR insulation boards and plasterboards. These boards are high-quality and extremely durable and versatile. The Polyisocyanurate (PIR) boards have a low emissivity foil lining on one side, which is then bonded to a sheet of 12.5mm plasterboard, creating a 2-in-1 product, saving time and money on purchasing and installation costs. The boards are ideal for installation within applications including walls, ceilings, and roofs, with boards available in sizes of 2400mm by 1200mm, and thicknesses from 37.5mm to 77.5mm. The Celotex Insulated plasterboards are part of the PL4000 range. The PL4000 boards can be easily cut and applied to walls and ceilings using dot and dab methods or timber and steel frame mechanical fixing applications. Insulated Plasterboards when installed correctly can improve the thermal quality of the building. These boards will help to maintain temperature levels by keeping the property cool in the summer and warm in the winter.
Celotex By Soprema Cavity Wall Boards
Cavity wall boards are designed for partial fill wall applications within cavity walls to prevent heat loss and improve the thermal quality of the building. The boards are generally applied in between the inner and outer leaf of the wall as it is being built up, or in other words between the brickwork and breezeblocks as they are being laid. The CW4000 boards are 1200mm by 450mm with a squared edge available in thicknesses between 50mm and 100mm. The squared edges mean the board can be tightly butted together and tape can be applied at the joints to avoid thermal bridging. Cavity wall boards are made up of a rigid Polyisocyanurate (PIR) core with low emissivity foil facings bonded to each side, designed to be friction fit between wall ties. This insulation material reduces heat levels transferring through the walls and makes the property more sustainable and energy efficient with less heat contributing to climate change and global warming making your property more sustainable.
Celotex By Soprema Thermaclass Cavity 21
Thermaclass boards are a type of cavity wall board, designed for full fill masonry cavity wall applications within the inner and outer leaf of the wall, which is applied as the wall is being constructed. Thermaclass cavity wall boards are 1190mm by 450mm, available in thicknesses of 90mm, 115mm, and 140mm. The boards have a tongue and groove edge which means the boards can be interlocked together, minimising gaps between boards, preventing thermal bridging. The tongue and groove edge maximises thermal conductivity and when installed correctly, avoids the use of foil tape. The boards have low emissivity foil facings on each side. Thermaclass holds an excellent thermal conductivity, the best of the Celotex range, at just 0.021W/mK. Overall Thermaclass Cavity 21 is easy to handle, lightweight, high quality and reliable. This quality board will improve the buildings energy efficiency and sustainability whilst regulating internal temperatures, resulting in a temperature-controlled environment.
Celotex FAQs
Is Celotex The Best Insulation?
All Celotex products are highly effective and offer outstanding performance to ensure your property is a temperature-controlled environment. Celotex is a popular choice for insulation materials, however the insulation you require, is dependent on a multitude of factors including building regulations, where the insulation is being installed, and how it needs to be installed. The purpose of the insulation must also be considered to find the best insulation material for your project such as thermal quality, sound reduction, or loft insulation and so forth.
How do I store Celotex insulation?
Celotex insulation materials need to be stored in their original packaging in a cool dry space protected from all weather conditions. The boards should be stacked clear of the ground and should not be walked on, walking on the boards can cause damage to the boards core. If the boards had been heavily affected by the weather or damaged beyond use, the boards should not be used.
What insulation thickness do I need?
The thickness of the insulation you require will be dependant on where and how the insulation is being applied as well as the type of insulation. For example, when insulating a timber frame or roof rafter using rigid insulation boards, the thickness will depend on the depth of the frames or rafters and whether the wall requires an air gap. When applying mineral or glass wool rolls, the insulation is flexible and can be friction fitted and slightly compressed into the space. Always ask your architect to calculate the U-values and determine the insulation thickness you require.
What is the purpose of insulation?
Insulation materials are designed to prevent heat from transferring through the insulation and prevent air from seeping through gaps, which is known as thermal bridging. What this means is insulation materials prevent weather conditions from affecting the property such as hot or cold temperatures. This also means preventing the hot and cold air from heating or air conditioning units from escaping through the building’s envelope, this creates a comfortable and temperature-controlled environment and saves you money long term on energy bills.
What causes mould to develop in homes?
Mould reproduces from tiny spores that float through the air. There are many types of moulds and none of them can grow or thrive without water or moisture. Built up moisture such as warm air coming into contact with cold surfaces such as walls or windows creates moisture which condenses into water droplets, also referred to as condensation. Condensation is the most common cause of dampness.
Why is Celotex now Soprema and not Saint Gobain?
Saint Gobain reached an agreement in 2023 with Soprema for the sale of a majority stake in its PIR insulation business known as Celotex. As a result, Celotex was transferred to new standalone company, Soprema. Saint Gobain still retain a 25% minority stake in the new company however Soprema retains the majority stake at 75%.