Suppliers of: Celcon concrete blocks lightweight concrete blocks concrete thin joint system
H+H UK LTD manufacture a wide range of aircrete blocks (AAC), a lightweight Concrete Blocks to suit all types of wall construction.
Useful Resources:
- BIM files available on BPi
- H+H Academy: Online training and resources Click here
H+H is the UK’s largest manufacturer of aircrete products. We manufacture the market leading range of Celcon Blocks, including Foundation Blocks, Plus Blocks and Vertical Wall Panels.
H+H aircrete products offer a complete building material that meets the requirements of the Building Regulations, with the flexibility to offer solutions to hospitals, schools, offices, industrial warehouses and housing (social and private).
Used in partition, separating and external walls (solid or cavity), firewalls and as an infill to framed construction, our products provide durability and fire resistance as well as superb thermal and sound insulation.
Main Product Ranges:
Celcon Blocks
Celcon Blocks in Solar, Standard, High Strength and Super Strength Grades are the most commonly used aircrete block in the H+H range. All Celcon Blocks are BBA certified, are fire resistant (100mm walls, up to 4 hours, 2 hours if loadbearing) and have been classified 0 surface spread of flame and non-combustible to Class A1 (the highest class).
Celcon Block Solar Grade
Celcon Blocks Solar Grade is principally used where enhanced thermal performance is required. With superior thermal conductivity Solar Grade Celcon Blocks are suitably loadbearing for two storey buildings and can be used below DPC.
Celcon Block Standard Grade
Celcon Blocks Standard Grade is BBA certified and has a compressive strength of 3.6N/mm2. Due to its all-round performance, it is possible for a 100mm Standard grade Celcon Block to be used throughout a build, eliminating on-site confusion.
Celcon Block High Strength & Super Strength Grade
H+H’s Celcon Blocks High Strength Grade (7.3N/mm2) and Super Strength Grade (8.7N/mm2) are used principally where higher compressive strengths are required such as in the foundations and lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings.
Celcon Vertical Wall Panels
Are the new generation of mechanically handled aircrete products that builds on the efficiency of thin-layer construction. These products offer all the benefits of aircrete material with proven site productivity.
Developed to enhance the key benefits of our thin-joint system; speed and quality of build with reduced waste. H+H UK’s Vertical Wall Panels offer all the attributes of aircrete as a building material whilst offering additional value to the project.
H+H Vertical Wall Panels are made to extremely tight manufacturing dimensional tolerances, supplied specifically for use with a combination of ancillary products and bonded using H+H’s proprietary element mortar to provide a nominal 3mm joint. This ensures a quality and quick build with little or no site wastage.
Celcon Plus Blocks
Celcon Plus Blocks are an alternative to the 440 x 215mm face format block and are suitable for the same applications. They are longer at 630mm long and come in a variety of thicknesses.
Celcon Foundation Blocks
Available in Standard Grade (3.6N/mm²) and High Strength Grade (7.3N/mm²), Foundation Blocks can be used to support 3 storey constructions. They are suitable for the support of solid or cavity walls, framed construction or suspended floors, including beam and block.
Jumbo Bloks
Jumbo Bloks are produced with the latest technology, offering a high degree of dimensional accuracy with sharp arises, which make them ideal for use with Celfix mortar.
Celcon Block Coursing Units
Coursing Units are produced from the same material as all H+H aircrete and are suitable for the same applications as conventional size Celcon Blocks, allowing consistency within the building fabric.
Celfix Mortar
Celfix Mortar is cement based and supplied as a dry, pre-mixed powder in 25kg bags. It has been designed to replace the traditional sand:cement mortar and is used with building with our Thin-Joint System. Celfix Mortar starts to set within 10 minutes of application and approaches full design strength in just 1 to 2 hours.
Future Proofing: Energy Efficiency with H+H Aircrete
To meet the demands and regulations of an environmentally sustainable future, take a ‘fabric first’ approach.
Sustainable standards are more important than ever. The growing consciousness concerning the environment is reflected in modern building regulations, such as the Future Homes Standard, expected to come into effect this year.
As we know, not all materials are created equal in terms of conserving energy and regulating temperatures in a building. At H+H, we support a “fabric first” philosophy. This means that we believe thermal efficiency should be built into the fabric of a house, so it remains effective for the lifetime of the building. Choosing aircrete ensures the building will benefit from high energy efficiency for years to come.
Thermal efficiency and U-values
Aircrete has a low rate of heat transfer through a structure (U-value) and is highly thermally efficient. The temperature in buildings constructed with aircrete is well regulated, keeping the heat in during cold winter months and the heat out on hot summer days. This reduces the energy used to control the temperature with systems such as central heating, resulting in a lower carbon footprint for the building.
One standard being encouraged in the move towards an energy efficient future is Passivhaus. Passivhaus is a voluntary standard for energy efficiency, which reduces the building’s ecological footprint. To achieve Passivhaus certification, a build must be airtight, and have an extremely low U-value.
H+H aircrete can be used for airtight construction, and its high thermal performance helps to meet stringent Passivhaus requirements, making it an ideal choice for energy-efficient building projects seeking the Passivhaus stamp of approval.
New standards of energy efficiency regulations are expected this year in the Future Homes Standard (FHS), which based on the current information available, we anticipate H+H aircrete will surpass.
Compatibility with heat pumps
Another key expectation set out in the Future Homes Standard is the requirement for new homes to be ‘zero-carbon ready’, meaning no work will be necessary to allow them to achieve zero carbon emissions when the electricity grid is fully decarbonised.
To achieve this objective the government encourages the use of heat pumps as the primary source of heating for houses as they are efficient and low carbon, and are less expensive to run than alternative electric heating systems.
Heat pumps work most efficiently if the home is well insulated. Constructing a building’s fabric with products that have a high U-value, indicating they are not very thermally efficient, can hinder the effectiveness of a heat pump. This is far from ideal, particularly given the significant initial investment required to install a heat pump. Aircrete’s high thermal efficiency makes it an ideal material for constructing homes that incorporate heat pumps, allowing them to perform to their full potential.
Long term thermal efficiency
While houses built today must have a minimum life expectancy of just 60 years, H+H aircrete has a lifespan of over 100 years.
This longevity means the benefits of aircrete, specifically its thermal efficiency, will last long into the future, continuing to require reduced heating and cooling demands for decades, making it a sustainable choice for future-proof construction.
Choosing aircrete for construction projects contributes to energy savings, supporting long-term sustainability goals. As we move towards a future where energy efficiency is paramount, materials like aircrete will play a crucial role in shaping buildings that are not only comfortable and cost-effective to maintain but also kind to the environment.
To find out more visit www.hhcelcon.co.uk or contact us on 01732 886444 or email info.uk@hplush.com
H+H supplier makes sustainable switch to decrease embodied carbon
H+H is the leading manufacturer of aircrete solutions in the UK, providing innovative products for wall building. Sustainability is a key focus for H+H, in particular reducing carbon emissions to reach its net zero emissions goal by 2050.
At least 85% of H+H’s emissions come from materials in its supply chain used to make aircrete, namely: cement, lime, sand, water, pulverised fuel ash (PFA), and aluminium powder. As part of its sustainability initiatives, H+H works closely with its suppliers to decrease the environmental impact of its systems.
Cemex, a global construction materials and solutions company, has been working with H+H to supply cement for its aircrete for over ten years. As part of Cemex’s Climate Action Programme ‘Future In Action’, it is focusing on decarbonising its solutions to reduce emissions associated with its products throughout the whole life cycle. This initiative has enabled H+H to switch its cement supply from CEM I 52,5N cement to the more sustainable alternative, Cemstone.
Cemex Cemstone, CEM II/A-L 52,5N is a factory produced Portland-limestone cement with a lower carbon footprint compared to other types of Portland cements. CEM I 52,5N cement is a traditional Portland cement, the most common type of cement used around the world contains greater than 95% clinker, which is a major source of CO2 emissions in cement manufacturing.
Clinker is produced by heating limestone (calcium carbonate, CaCO3) and other raw materials such as clay in a rotary kiln at very high temperatures. The key reaction that occurs in this process is the calcination of limestone, which decomposes into calcium oxide (CaO) and releases carbon dioxide (CO2) as a byproduct. The fossil fuels burned to heat the kiln for this process also contribute to the carbon emissions of clinker.
Cemstone achieves comparable performance to CEM I 52,5N but only contains around 80% clinker, therefore replacing CEM I 52,5N cement with Cemstone helps to reduce the embodied carbon of Cemex’s products as well as the companies it supplies.
Cemex UK’s decision to position Cemstone as its core cement product is part of its broader strategy to cut CO2 emissions. This initiative aligns with Cemex’s comprehensive decarbonisation roadmap, which focuses on incorporating low-carbon raw materials and high levels of alternative fuels usage in the cement manufacturing process.
To learn more about H+H UK’s plans for a more environmentally conscious future, explore the sustainability roadmap.
