H+H UK LTD
CELCON HOUSE
IGHTHAM
SEVENOAKS
KENT TN15 9HZ
Tel: 01732 886444
Fax: 01732 887013
Suppliers of: Celcon concrete blocks lightweight concrete blocks concrete thin joint system
H+H UK LTD manufacture a wide range of Concrete Blocks and lightweight Concrete Blocks to suite all types on Block Construction.
Useful Resources:
- BIM files available on BPi
- Social Media: LinkedIn / Twitter / YouTube / Facebook
- 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 the H+H range of aircrete products.
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 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.
Beam & Block Floorblock
Beam and Block floors are constructed using Celcon Blocks. They are lightweight, so easier, quicker and safer to lay and allow for an economy of scale and reduction in laying times.
Multi Plates
H+H Multi Plates are a new generation of aircrete products that build on the efficiency of thin layer construction. At over 2 times the size of a traditional (440 x 215mm) block, Multi Plates and the Thin-Joint system will deliver significant savings in site productivity.
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.
These files are provided by the manufacturer. While Building Products Index takes every care to ensure the information is correct and up to date, we cannot be held liable for any out of date or incorrect information in them. Please check with the supplier before specifying or purchasing products.
1. Building a Sustainable Future
H+H environmental and sustainability credentials
Published [18/06/18]File size [3451 KB]
2. H+H Designing and Building with Aircrete
masonry structures
Published [18/06/18]File size [6559 KB]
3. H+H Products Applications Guide
aircrete blocks, Lightweight concrete blocks
Published [21/06/18]File size [5957 KB]
4. Structural Masonry Brochure
Structural Masonry
Published [18/06/18]File size [7762 KB]
5. H+H Thermal Compliance
Published [21/06/18]File size [2772 KB]
6. H+H Thin Joint System
how to use aircrete as a thin-joint system, including RåBuild, large format aerated concrete blocks
Published [21/06/18]File size [7425 KB]
7. H+H R House Plan Compliance
Celcon Aircrete, Celcon Flooring System
H+H UK’s Thin-Joint System,
Intermediate Floor Solutions
Published [18/06/18]File size [701 KB]
Building with Aircrete
Published [12/06/15]File size [6516 KB]
Celcon Aircrete Blocks Non Housing
all round commercial and industrial building blocks
Published [03/06/14]File size [1076 KB]
Celcon Elements with SIG I-HOUSE
Aircrete Lightweight Aerated Concrete Prefabricated Construction Elements, Internal Walls, OSM Offsite Manufacture House Building Systems
Published [18/06/18]File size [639 KB]
Designing with Aircrete
H+H aircrete blocks
Published [12/06/15]File size [4560 KB]
Factsheet 10 Foundation Blocks Costings
Celcon Foundation Blocks
Published [25/04/17]File size [629 KB]
Factsheet 11 R Build Costing 1
masonry construction
Published [25/04/17]File size [1384 KB]
H+H AIMC4 One Year On
The AIMC4 target of reducing carbon emissions from homes by 44% against 2006 Part L Building Regulation levels was set in the context of the Government’s 2016 Timeline to deliver Zero Carbon Homes
Published [21/06/18]File size [2958 KB]
H+H Celcon Blocks 2016
Celcon Blocks in Solar, Standard, High Strength
and Super Strength Grades are the most
commonly used aircrete block in the H+H range.
Published [24/04/17]File size [226 KB]
H+H Celcon Blocks Coursing Units 2016
Published [24/04/17]File size [417 KB]
H+H Celcon Floor Blocks 2016
Beam and block floors
Published [24/04/17]File size [411 KB]
H+H Celcon Foundation Blocks 2016
Celcon Foundation Blocks are commonly used
in a range of thicknesses for use below ground level
Published [25/04/17]File size [247 KB]
H+H Celcon Higher Strength Grades 2016
celcon blocks
Published [25/04/17]File size [334 KB]
H+H Celcon Jumbo Bloks Multi Plates 2016
Celcon Blocks, aircrete blocks
Published [25/04/17]File size [265 KB]
H+H Celcon Plus Blocks 2016
Celcon Plus Blocks are 630mm long
Published [24/04/17]File size [306 KB]
H+H Celcon Solar Grade Product 2016
Celcon Solar Grade blocks
Published [25/04/17]File size [473 KB]
H+H Celcon Standard Grade Product 2016
Celcon Blocks, Standard Grade
Published [25/04/17]File size [717 KB]
H+H Celcon Thin Joint Product 2016
Published [25/04/17]File size [632 KB]
H+H Celcon Vertical Element 200
aircrete product
Published [09/05/16]File size [267 KB]
H+H Multi Plates
Published [03/06/14]File size [437 KB]
H+H Vertical Elements -100
aircrete product
Published [21/06/18]File size [173 KB]
PSI Cost Comparison Final
Published [25/04/17]File size [320 KB]
These files are provided by the manufacturer. While Building Products Index takes every care to ensure the information is correct and up to date, we cannot be held liable for any out of date or incorrect information in them. Please check with the supplier before specifying or purchasing products.
High Strength Grade
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.Celcon Block High Strength Grade is extremely versatile and can be used below DPC, as well as loadbearing walls above ground which demand higher structural performance.The Plus range is produced using the latest manufacturing technology which rank them amongst the most dimensionally accurate blocks available, making them ideal for use with H+H UK's Thin-Joint System.H+H Multi Plates are a new generation of aircrete products that build on the efficiency of thin layer construction.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.This download is a Wall system component created by bimstore.co.uk for H+H UK Limited.This component is created in Revit 2014 for use in Wall systems and is in line with 2015 industry standards.
Autoclaved aerated concrete (AAC) blocks
Published [30/03/17]
High Strength Grade – Celcon Block
High Strength grade blocks are principally used 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. This product may be supplied either plain faced (see image) or scratch marked (not shown).
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
High Strength Grade – Celcon Foundation Block
High Strength Grade Celcon Foundation blocks are principally used below dpc level for the support of cavity or solid walls, framed construction or suspended floors. Foundation blocks may also be used 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. This product may be supplied either plain faced (see image) or scratch marked (not shown).
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
High Strength Grade Celcon Plus Block
High Strength Grade blocks are principally used where higher compressive strengths are required – such as in the lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
High Strength Grade Jumbo Blok
High Strength grade blocks are principally used where higher compressive strengths are required – such as in the lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
High Strength Grade Multi Plates
High Strength grade blocks are principally used where higher compressive strengths are required – such as in the lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Solar Grade
Solar Grade Celcon Blocks are suitably loadbearing for two storey buildings and can be used below DPC. H+H's Solar Grade has a compressive strength of 2.9N/mm2 and is third party accredited for use in the applications listed.The Plus range is produced using the latest manufacturing technology which rank them amongst the most dimensionally accurate blocks available, making them ideal for use with H+H UK's Thin-Joint System.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. This download is a Wall system component created by bimstore.co.uk for H+H UK Limited.This component is created in Revit 2014 for use in Wall systems and is in line with 2015 industry standards.
Autoclaved aerated concrete (AAC) blocks
Published [30/03/17]
Solar Grade Celcon Block
Solar Grade Celcon Blocks are principally used where enhanced thermal performance is required. The product is available in a range of thicknesses and can be used above and below dpc level. This product may be supplied either plain faced (see image) or scratch marked (not shown).
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Solar Grade Celcon Plus Block
Solar Grade Celcon Plus Block is used principally where enhanced thermal performance is required. The product is available in a range of thicknesses and can be used above or below DPC level.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Solar Grade Jumbo Blok
Solar Grade Jumbo Blok is used principally where enhanced thermal performance is required.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Standard Grade
They are suitable for the support of solid or cavity walls, framed construction or suspended floors, including beam and block.Celcon Block Standard Grade is extremely versatile and can be used below DPC as infill for Beam and Block flooring systems, as well as above the ground in the walling applications listed.The Plus range is produced using the latest manufacturing technology which rank them amongst the most dimensionally accurate blocks available, making them ideal for use with H+H UK's Thin-Joint System.H+H Multi Plates are a new generation of aircrete products that build on the efficiency of thin layer construction. 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.This download is a Wall system component created by bimstore.co.uk for H+H UK Limited.This component is created in Revit 2014 for use in Wall systems and is in line with 2015 industry standards.
Autoclaved aerated concrete (AAC) blocks
Published [30/03/17]
Standard Grade – Celcon Foundation Block
Celcon Foundation blocks are principally used below DPC level for the support of cavity or solid walls, framed construction or suspended floors. Foundation blocks may also be used above ground for solid wall construction. This product may be supplied either plain faced (see image) or scratch marked (not shown)
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Standard Grade Celcon Block
Standard grade blocks are multi purpose and may be used above and below DPC level. They are also suitable for separating walls and internal partition, as well as inner and outer leaf of external walls. This product may be supplied either plain faced (see image) or scratch marked (not shown)
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Standard Grade Celcon Plus Block
Standard grade blocks are multi purpose and may be used above and below DPC level. They are also suitable for separating walls and internal partition as well as inner and outer leaf of external walls.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Standard Grade Jumbo Blok
Standard grade blocks are multi purpose and are suitable for separating walls and internal partition as well as inner and outer leaf of external walls.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Standard Grade Multi Plate
Standard grade blocks are multi purpose and are suitable for separating walls and internal partition as well as inner and outer leaf of external walls.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Super Strength Grade
Celcon Block Super Strength Grade is extremely versatile and can be used below DPC, as well as loadbearing walls above ground which demand higher structural performance.The Plus range is produced using the latest manufacturing technology which rank them amongst the most dimensionally accurate blocks available, making them ideal for use with H+H UK's Thin-Joint System.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.H+H Multi Plates are a new generation of aircrete products that build on the efficiency of thin layer construction.This download is a Wall system component created by bimstore.co.uk for H+H UK Limited.This component is created in Revit 2014 for use in Wall systems and is in line with 2015 industry standards.
Autoclaved aerated concrete (AAC) blocks
Published [30/03/17]
Super Strength Grade – Celcon Block
Super strength grade blocks are principally used 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. This product may be supplied either plain faced (see image) or scratch marked (not shown).
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Super Strength Grade – Celcon Plus Blocks
Super strength grade blocks are principally used where higher compressive strengths are required – such as in the lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Super Strength Grade – Jumbo Blok
Super strength grade blocks are principally used where higher compressive strengths are required – such as in the lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Super Strength Grade – Multi Plate
Super strength grade blocks are principally used where higher compressive strengths are required – such as in the lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings.
Autoclaved aerated concrete (AAC) blocks, Autoclaved aerated concrete (AAC) blocks
Published [13/12/18]
Vertical Element
Vertical Elements can be used in housing as well as commercial or mixed tenure projects. Suitable for internal partition and the internal leaf of an external wall, the products offer solutions to meet the requirements of the Building Regulations for education, health, care homes, retail outlets, hotels, commercial buildings, leisure, offices as well as housing (social and private).H+H Vertical Elements are made to extremely tight manufacturing dimensional tolerances, supplied specifically for use with a combination of ancillary products which all complement the 2mm joint of Celfix, our thin layer mortar, with no leveling required. This ensures a quality and quick build with little or no site wastage.Vertical Elements have also been successfully used in the construction of Zero Carbon houses, Level 6 in the Code for Sustainable Homes (CfSH), proving that aircrete is a very viable option in the provision of sustainable construction of future homes.This download is a Wall system component created by bimstore.co.uk for H+H UK Limited.This component is created in Revit 2014 for use in Wall systems and is in line with 2015 industry standards.
Autoclaved aerated concrete (AAC) blocks
Published [30/03/17]
H+H Celcon Blocks Support Homeless Veterans into Employment
Twelve former servicemen now live in the homes they helped build during the project which was a partnership between local housing association DCH, the Community Self Build Agency (CBSA) and Plymouth City Council. Funding was provided from the Homes and Communities Agency and Plymouth City Council. Main contractor Interserve was responsible for delivering the scheme.
Local architect Form Design specified the use of lightweight blocks in order to achieve ‘Robust Details’ for acoustic and thermal performance. Phil Roberts, Senior Design Manager at Interserve said: “Although other lightweight blocks were initially considered, in the end we chose to use H+H Celcon Blocks. This decision was made primarily on the company reputation of H+H”.
H+H 100mm High Strength Blocks 7.3N and 140mm Standard Grade Blocks 7.3N were used for the outer leaf on the external cavity wall to meet Robust Details E-WM-23 and 24. Two leaves of the High Strength aircrete blocks were used with traditional mortar and a 100mm cavity in between. The fully filled cavity solutions, designed to address the thermal insulation requirements of Part L, have the added benefit of providing a high acoustic performance which exceeds the requirements of Part E of the Building Regulations. Phil said it was very straightforward to use the blocks and Interserve experienced no problems with using the product.
“We were initially nervous about using the aircrete blocks on the outside leaf and needed to check compatibility with the specialist render system first”. Once Interserve were satisfied with the performance of the H+H Celcon Blocks, render was applied directly to the product, with support from the H+H Technical Department.
The lightweight nature of aircrete leads to a number of functional and financial advantages when compared to more traditional building material as aircrete is less than half the weight of the equivalent dense aggregate block, which had been originally specified. The lightweight properties of the H+H Celcon Blocks was a key benefit for the veterans; most of whom had never worked on a construction site before.
The veterans were able to gain recognised qualifications in ‘Working at Height’ and ‘Safety in the Use of Abrasive Wheels’. They also completed training in carpentry, plastering, bricklaying and general labouring duties and two veterans were entered in the Site Manager Safety Training Scheme.
H+H prides itself on the value of its customer service that it provides to contractors, from the beginning to the end of the project. The location presented a number of challenges for delivering materials to the site which was restrictive for standard articulated vehicles. By visiting the site beforehand and working closely with Interserve’s site manager, H+H was able to review access and offer delivery of the product via a Draw Bar vehicle with a crane.
Stella Clarke, Chair of the Community Self Build Agency, said: “The aim of the project is to provide homes for veterans and also help overcome some of the barriers they may face when trying to access housing and employment, and make it easier for them to integrate back into the local community.
“We’ve done two similar schemes in Bristol and it can be really hard for people leaving the armed forces to get back into normal, everyday life, especially as many are young when they join the army. Some people really struggle, and obviously, some have very bad injuries, while many will suffer from post-traumatic stress disorder.”
A study conducted by the University of the West of England on CBSA’s previous self-build schemes found that for every £1 spent on a self-builder, between £4 and £7.20 was generated for the local community. The Nelson Project gave the self-building veterans somewhere to live as well as valuable skills and training which has helped them on the path to sustainable employment. One third of the veterans who volunteered to take part in the project have subsequently found employment within the construction industry.
The Nelson Project was completed in July 2017 with the first residents moving in shortly afterwards. The scheme scooped ‘Best Smaller Development’ and the ‘Abercrombie Award’ (awarded to the best overall planning project) at the Plymouth City Council Abercrombie Awards in November 2017.
H+H Celcon Foundation Blocks used in Pine Lodge, Chester
Pine Lodge, located on Liverpool Road close to the centre of Chester is an exclusive seven home development surrounded by mature trees yet close to all the amenities and culture Chester city centre has to offer. Pine Lodge is the name of the neo-Tudor cottage which stands at the entrance to the site. Archway Homes are painstakingly restoring the cottage, dating from 1882, back to its former glory for use as a prestigious four-bedroom private residence.
H+H Celcon Foundation Blocks (325mm x 215mm) in Standard Grade and 3.6N strength were used to construct the foundations for the six new homes. H+H Celcon Standard Grade Blocks (325mm x 215mm) in 300mm thickness and 3.6N strength were used from DPC level up to roof height in each of the new homes. Senior Site Manager Barry Parkyn enjoyed working with the products. He said: “The H+H Celcon Foundation Blocks were really easy to use, lightweight and well-packed.”
“We get our materials supplied via our merchant so we have never had any issues with H+H. I am really happy using H+H Celcon Blocks and look forward to using them again in future projects.”
Requiring only a single leaf of blocks, a solid aircrete block can be laid onto a strip of poured concrete to match the thickness of the wall. This method also requires no mortar at the perpendicular joints; instead they can be butted against each other.
Aircrete’s natural low density means the typical H+H Celcon Block weighs just a third of the weight of an equivalent dense aggregate block. Their low weight also means they are easy to lay and cut to size on site, making them easy to use whilst also delivering significant cost-savings for contractors.
Calfordseaden, an independent construction and property consultancy firm, conducted a Foundation Cost Comparison Study which found that constructing foundations using aircrete blocks can reduce total build costs by almost 25%. This is achieved through aircrete’s naturally quicker build speed which leads to reduced labour costs and the solid construction means that fewer materials are needed.
Archway Homes began construction of Pine Lodge in January 2018 and the development is expected to be completed by the end of this year. Five of the six new-build homes were reserved before construction began and the cottage will be put up for sale later this year when ready.
