H+H UK LTD

CELCON HOUSE
IGHTHAM
SEVENOAKS
KENT TN15 9HZ

Tel: 01732 886444
Fax: 01732 887013

Company Logo

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:

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. H+H Products and Applications Brochure
aircrete blocks, Lightweight concrete blocks

Published [08/03/19]File size [5952 KB]

2. H+H Thin Joint System As An MMC
how to use aircrete as a thin-joint system, including RåBuild, large format aerated concrete blocks

Published [08/03/19]File size [7515 KB]

3. H+H Designing and Building with Aircrete
masonry structures

Published [08/03/19]File size [6559 KB]

4. H+H Building a Sustainable Future
H+H environmental and sustainability credentials

Published [08/03/19]File size [3451 KB]

4. Structural Masonry Brochure
Structural Masonry

Published [08/03/19]File size [7762 KB]

5. H+H Thermal Compliance

Published [08/03/19]File size [2777 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 [08/03/19]File size [639 KB]

Factsheet 11 R Build Costing 1
masonry construction

Published [25/04/17]File size [1384 KB]

H + H BBA Cert 05 4275 -Floor infill 2018 version

Published [30/05/19]File size [527 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 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 Elements Guide 2019
H+H MMC Build Solution: offsite with aircrete

Published [03/06/19]File size [3118 KB]

H+H Factsheet 10 Foundation Costings
Celcon Foundation Blocks

Published [07/05/19]File size [629 KB]

H+H Sound Robust Details TSD57
blockwork constructions to meet the Building Regulations Approved Document E

Published [29/04/19]File size [34 KB]

H+H Vertical Elements -100
aircrete product

Published [08/03/19]File size [176 KB]

PSI Cost Comparison Final

Published [03/06/19]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 – 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 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 – 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 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]

BLOCKS AGREMENT CERTIFICATE HOLDERS BS EN 771 (BS 6073)
BLOCKS Aircrete .
BLOCKS Aircrete Acoustic Performance Robust Detail
BLOCKS Aircrete AGREMENT CERTIFICATE HOLDERS
BLOCKS Aircrete Approved Document E
BLOCKS Aircrete Beam and Block Flooring Infill
BLOCKS Aircrete BRE Green Guide A+ Rating
BLOCKS Aircrete BS EN 771-4 (BS 6073) CE Marked
BLOCKS Aircrete Fire Resistant Class A1
BLOCKS Aircrete Large Format
BLOCKS Aircrete Thin Joints Systems
BLOCKS Approved Doc Part L .
BLOCKS BS 14001 .
BLOCKS BS 5051 Class G2 (Ballistics)
BLOCKS BS 5628:Part 1 Special Category .
BLOCKS BS EN 1996-1,2,3 .
BLOCKS Cellular Concrete AGREMENT CERTIFICATE HOLDERS
BLOCKS Cellular Concrete BS 5628 Part 1
BLOCKS Concrete .
BLOCKS Concrete Beam and Block Flooring Infill .
BLOCKS Concrete BS 5628 Part 1 .
BLOCKS Concrete by Sizes (Metric) Actual: 215mm x 65mm
BLOCKS Concrete by Sizes (Metric) Actual: 300mm x 215mm
BLOCKS Concrete by Sizes (Metric) Actual: 325mm x 215mm
BLOCKS Concrete by Sizes (Metric) Actual: 440mm x 215mm
BLOCKS Concrete by Sizes (Metric) Actual: 630mm x 140mm
BLOCKS Concrete by Sizes (Metric) Actual: 630mm x 215mm
BLOCKS Concrete by Sizes (Metric) Actual: 630mm x 250mm
BLOCKS Concrete by Sizes (Metric) Actual: 630mm x 350mm
BLOCKS Concrete by Thickness (Metric): 75mm
BLOCKS Concrete by Thickness (Metric): 100mm
BLOCKS Concrete by Thickness (Metric): 140mm
BLOCKS Concrete by Thickness (Metric): 150mm
BLOCKS Concrete by Thickness (Metric): 200mm
BLOCKS Concrete by Thickness (Metric): 215mm
BLOCKS Concrete by Thickness (Metric): 255mm
BLOCKS Concrete by Thickness (Metric): 275mm
BLOCKS Concrete by Thickness (Metric): 300mm
BLOCKS Concrete by Thickness (Metric): 325mm
BLOCKS Concrete by Thickness (Metric): 355mm
BLOCKS Concrete Fire Resistant BS 476: .
BLOCKS Concrete Fire Resistant BS 476: 1 hour
BLOCKS Concrete Fire Resistant BS 476: 2 hour
BLOCKS Concrete Fire Resistant BS 476: 4 hour
BLOCKS Concrete Fire Resistant BS 476: 6 hour
BLOCKS Concrete Fire Resistant BS 5628: 1 hour Loadbearing
BLOCKS Concrete Fire Resistant BS 5628: 2 hour Loadbearing
BLOCKS Concrete Fire Resistant BS 5628: 4 hour Loadbearing
BLOCKS Concrete Fire Resistant BS 5628: 6 hour Loadbearing
BLOCKS Concrete Fire Resistant BS 5628: Class 1
BLOCKS Concrete Fire Resistant Eurocode ENV1996-1-2-:1995
BLOCKS Concrete Party Walls .
BLOCKS Concrete Party Walls Sound Insulation
BLOCKS Concrete Thin Layer Joint Systems Masonry
BLOCKS Coursing .
BLOCKS Coursing Brick Format Units
BLOCKS Featherweight BS EN 771-4 (BS 6073) .
BLOCKS Flooring .
BLOCKS Foundation .
BLOCKS Foundation AGREMENT CERTIFICATE HOLDERS
BLOCKS Foundation Lightweight Aerated Concrete
BLOCKS Frost Resistant .
BLOCKS High Strength .
BLOCKS Lightweight Aerated Concrete .
BLOCKS Lightweight Aerated Concrete AGREMENT CERTIFICATE HOLDERS
BLOCKS Lightweight Aerated Concrete Beam and Block Flooring Infill
BLOCKS Lightweight Aerated Concrete Below DPC
BLOCKS Lightweight Aerated Concrete Brick Coursing Size
BLOCKS Lightweight Aerated Concrete BS EN 771-4 (BS 6073)
BLOCKS Lightweight Aerated Concrete Cavity Wall
BLOCKS Lightweight Aerated Concrete High Strength
BLOCKS Lightweight Aerated Concrete Infill
BLOCKS Lightweight Aerated Concrete Inner Leaf
BLOCKS Lightweight Aerated Concrete Insulating
BLOCKS Lightweight Aerated Concrete Internal Facing
BLOCKS Lightweight Aerated Concrete Large Format
BLOCKS Lightweight Aerated Concrete Partition
BLOCKS Lightweight Aerated Concrete Thin Layer Joint Masonry
BLOCKS Lightweight Aerated Concrete Thin Layer Joint Masonry / Thin Joint Systems
BLOCKS Lightweight Concrete: .
BLOCKS Lightweight Concrete: BS 5628
BLOCKS Lightweight Concrete: BS EN 771-4 (BS 6073)
BLOCKS Plain Finish .
BLOCKS Sound Insulation .
BLOCKS Sulfate Resistance Sulfate Classes up to Class 4
BLOCKS Thermal Insulation Insulating .
BLOCKS Thermal Insulation Insulating AGREMENT CERTIFICATE HOLDERS
BLOCKS Thermal Insulation Insulating Anti-Cold Bridging / Cold Bridge Elimination
BLOCKS Thermal Insulation Insulating Below DPC
BLOCKS Thermal Insulation Insulating Lightweight High Strength
BLOCKS Thermal Insulation Insulating NHBC Requirements
BLOCKS Thermal Insulation Insulating Specialist Application Higher Thermal Conductivity
BLOCKS Thermal Insulation Insulating Thermal Bridge Elimination
BLOCKS by Strength K values (3pc Moisture Content) 2.8 N per Square mm less than 0.15 W/M.C
BLOCKS by Strength K values (3pc Moisture Content) 3.5 N per Square mm less than 0.15 W/M.C
BLOCKS by Strength K values (3pc Moisture Content) 3.5 N per Square mm more than 0.14 AND less than 0.26 W/M.C
BLOCKS by Strength K values (3pc Moisture Content) 4.0 N per Square mm more than 0.14 AND less than 0.26 W/M.C
BLOCKS by Strength K values (3pc Moisture Content) 7.0 N per Square mm more than 0.14 AND less than 0.26 W/M.C
BLOCKS by Strength K values (3pc Moisture Content) 8.7 N per Square mm more than 0.14 AND less than 0.26 W/M.C
BLOCKS by Strength K values (3pc Moisture Content) 10.0 N per Square mm more than 0.14 AND less than 0.26 W/M.C
CAVITY WALLS Aerated Concrete Panels Modular Construction Elements
CAVITY WALLS Aerated Concrete Panels Storey Height Panels
CAVITY WALLS External Concrete
COURSING Bricks Concrete .
COURSING Units .
FOUNDATION Design .
HOUSE BUILDING SYSTEMS OSM (Offsite Manufacture) .
HOUSE BUILDING SYSTEMS OSM (Offsite Manufacture) Complete Whole House Shells
INSULATION BLOCKS .See Also BLOCKS: Thermal Insulation Insulating: .
MORTARS Blockwork Thin Joint
PARTITION WALLING AGREMENT CERTIFICATE HOLDERS .
PARTITION WALLING Concrete Building Regs Part E
PARTITION WALLING Concrete Units Lightweight Aerated Concrete
PARTITION WALLING Concrete Units Lightweight Aerated Concrete Modular Elements
PARTITION WALLING Concrete Units Lightweight Aerated Concrete Storey Height Panels
SOLID WALL CONSTRUCTION Concrete Blocks .
UNITS Precast Concrete Coursing
WALL SYSTEMS OSM (Offsite Manufacture) .
WALL SYSTEMS Prefabricated Elements .
WALL SYSTEMS Prefabricated Elements Modular Aerated Concrete Panels
WALL SYSTEMS Prefabricated Elements Modular Aerated Concrete Panels Storey Height
WALLS Flanking Concrete .
WALLS Flanking Concrete Aerated Concrete Panels Modular Elements
WALLS Flanking Concrete Aerated Concrete Panels Storey Height
WALLS Separating Concrete .
WALLS Separating Concrete Aerated Concrete Panels Modular Elements
WALLS Separating Concrete Aerated Concrete Panels Storey Height
AIRCRETE BLOCKS Concrete Blocks
CELCON Blocks
CELCON ELEMENTS Precast Concrete Modular Construction Elements
CELCON FLOORBLOCK Infill Blocks
CELCON FOUNDATION Blocks
CELCON PLUS Blocks
CELCON SOLAR Blocks
CELCON STANDARD Blocks
CELFIX Mortar
HIGH-STRENGTH (replaces HI-SEVEN) Concrete Blocks
JUMBO BLOKS Large Aerated Concrete Blocks
MULTI PLATES Large Aerated Concrete Blocks
RA BUILD All In One Building Concept
RÅ HOUSE All In One Building Concept
SIG I-HOUSE OSM Off-Site Manufacture House Building System
SOLAR GRADE Blocks
SUPER-STRENGTH (replaces HI-TEN) Concrete Blocks
THIN-JOINT SYSTEM Block Walling System
VERTICAL ELEMENTS Building Panels

H+H Celcon Blocks Keep the Heat in Shrewsbury

May 2019

A total of 175 new homes comprising of two, three, four and five bedrooms will be delivered as part of the Sweetlake Meadow development at Longden Road, Shrewsbury, supported by H+H Foundation Blocks.

As sustainability was so important on this project, SJ Roberts chose to specify H+H Ltd Celcon Foundation Blocks.Buyer Oliver Heighway said: “The sustainability of H+H’s Aircrete Blocks speak for themselves and aligns well with our Timber Frame Construction and the inherent ecological benefits this provides, from sourcing of materials through to whole lifetime costs to the end user with reduced energy running costs.

“We’ve worked closely with H+H UK for many years and have established a good working relationship. Communication has always been a key part of this relationship, especially given previous supply issues with Aircrete products.

“Specifying H+H Ltd Celcon Foundation Blocks was therefore an easy decision, with guaranteed allocation from the manufacturer and stock locally, H+H can fulfil supply requirements through a number of avenues, which is imperative given time constraints of any given development.

”Calfordseaden, an independent construction and property consultancy firm, conducted a Foundation Cost Comparison Study, which identified that constructing foundations using aircrete blocks is more cost effective than dense aggregate alternatives. The study, which used a typical three-bedroom semi-detached UK home, showed that changing the foundations to aircrete alone could 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.

Aircrete blocks are often overlooked for use as foundation materials, however the underestimation of their load-bearing capabilities means dense aggregate blocks are needlessly specified, adding to the total cost of the build. Weighing only a third of the equivalent dense aggregate block, aircrete blocks are easier to transport, manipulate and lay on site. They also offer enhanced freeze/thaw durability and protection against sulphate attack, making them an ideal solution for foundations in Britain’s cold and wet winter months.

Aircrete is already commonly used throughout Europe and now more and more UK firms are realising the benefits of making the switch away from dense aggregate blocks. As the UK’s largest manufacturer of aircrete, H+H are able to provide technical information for contractors thinking of using aircrete for their next project. The H+H Technical team can be contacted on 01732 880580 or by
email: technical.services@hhcelcon.co.uk.

H+H Celcon Blocks Used in Popular New Cheshire Development

May 2019

Nantwich based property management firm Slater Homes Limited have recently completed an exclusive development in the delightful village of Bunbury in Cheshire using H+H Celcon Blocks. The five new luxury homes each have four bedrooms and already sold for in excess of £500,000 before the build was even completed.

The rural location presented a number of challenges for delivering the materials to site so local merchant Travis Perkins worked closely with contractor Slater Homes Limited to deliver the H+H Celcon Blocks in allocated time slots.

Slater Homes Limited said: “We were very happy to use the H+H Celcon Blocks as specified by the architect on the project, Stewart Thorley. Local supplier Travis Perkins in Nantwich always stock H+H Celcon Blocks so I knew the product could be relied upon to do a good job.

“The blocks were very easy to use and allowed us to build incredibly quickly – delivering great cost savings for us a small housebuilder.

”H+H Standard Grade Blocks were used in each of the five properties. Celcon Blocks are BBA certified, fire resistant (Up to 4 hours on 100mm walls or up to 2 hours if loadbearing) and have been classified 0 surface spread of flame and non-combustible to Class A1 (the highest class). Celcon Blocks are available in thicknesses from 75mm to 215mm.

H+H Celcon Blocks are also more resistant to sulfate attack than dense aggregate concrete blocks and increased protection from spalling – where blocks crack under the stress of constant freeze/thaw cycles during Britain’s cold and wet winter months.

Where they differ from their competitors however is through their superior thermal performance.
By using H+H Celcon Blocks in this new development, Slater Thomas were able to achieve u-values of 0.2w/m2k with a 125mm cavity.

Linear thermal bridging is a major source of heat loss and the use of aircrete has a major benefit in reducing this by leakage through the masonry into the roof, floors and external walls. Heat loss from junctions can now account for as much as 30% of the heat lost through the fabric of a building. It is therefore becoming increasingly important for housebuilders to consider the thermal performance of the building materials they are using.

To find out how H+H can help with your next project, get in touch with our Technical Services team today on 01732 880580 or by email: technical.services@hhcelcon.co.uk.

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