Build Smarter. Live Greener!
Why R-WALL?
R-WALL is a multi-award-winning Insulated Concrete Formwork (ICF) system that delivers low-carbon, high-performance homes without compromise. Designed for the next generation of building standards, R-WALL combines speed of construction with exceptional strength, energy efficiency, and longevity.
With zero cold bridging, outstanding thermal performance, and a simple, efficient build process, R-WALL helps you meet today’s regulations—and exceed tomorrow’s.
What is R-WALL?
R-WALL is a non-modular ICF system formed from two outer layers of R-Board (XPS insulation) connected by R-Rails and R-Ties. The courses are assembled to the required height, filled with concrete, and left to cure—creating a monolithic structure ready for external and internal finishes.
The integrated R-Rails provide convenient fixing points for finishes like cladding and plasterboard, while services can be chased directly into the insulation, simplifying first-fix and reducing build time.
Proven Performance
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Zero cold bridging
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U-Values as low as 0.1
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Exceptional PSI values
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Passive House capable
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Regulation-compliant with a 309mm wall width
Proven on projects across the UK
Watch this video for a brief introduction to R-Wall
What Makes R-WALL Different to other ICF's on the market?
Designed and Manufactured in the UK
R-WALL is fully UK-based, ensuring consistent quality, a reduced carbon footprint and compliance with UK building standards.
Exceptional Thermal Performance
With zero cold bridging and outstanding PSI values, R-WALL delivers industry-leading thermal efficiency and airtightness.
Non-Modular Design
R-WALL's non-modular system offers greater versatility, making complex designs easier to achieve and simplifying the build process on site.
Stronger, Smarter Insulation
The closed-cell XPS insulation used in R-WALL is up to three times stronger than standard ICF materials. It is more energy efficient and unaffected by water, ensuring both continued thermal performance and reduced build delays.
R-WALL is a modern ICF system designed to challenge outdated perceptions of Insulated Concrete Formwork. Developed to address the limitations associated with earlier systems, it delivers a faster, simpler, and more flexible build process, while providing stronger, higher-performing formwork.
Homes built with R-WALL outperform conventional construction methods, including timber frame and standard masonry, offering exceptional strength, energy efficiency, and long-term durability. With zero cold bridging and outstanding thermal performance, R-WALL is engineered to meet—and exceed—current and future Building Regulations
Choose your channel
Design without restriction. Straight walls, curved walls, any angle of corner, change core sizes as required, alter insulation thicknesses internally and externally to achieve desired U-Values or aesthetic appearance. Easily achieve building regs compliance with zero cold bridging, U-Values as low as 0.1 and super airtightness characteristics.
A quick build system that can be built in all weathers reducing construction delays! No requirement for heavy lifting equipment, improved health and safety on site and homes which out perform other build methods with little to no after care requirements. Easily meet building regulation compliance.
A light weight build system which is versatile and easy to use. Onsite fully comprehensive training and support. Meet build schedules regardless of weather, be less reliant upon skilled labour.
The Future of Building
The construction industry must evolve to pave the way for a better future for generations to come. Traditional building methods and timber framing struggle to meet the growing energy efficiency standards. R-WALL is the solution, allowing for quicker home construction without compromising on exceptional performance and durability. Embrace the future and leave outdated techniques behind—choose R-WALL for a sustainable tomorrow.
What can you build with R-WALL?
Detached, semi-detached and terrace houses. Flats (up 11m in height), extensions. The R-Boards can be rasped or modelled to mimic Victorian or Cob features.
Basements
R-WALL is unaffected by water therefore it is one of the few ICFs which can be used underground. R-WALL has exceptional strength creating retaining walls which also form the main structure of the home.
Commercial
R-WALL buildings are great for commercial use due to the exceptional sound attenuation and energy efficiencies of the buildings.
Pools & Ponds
Unlike EPS based ICF systems, R-WALL has very little compressive creep meaning the internal layer of insulation can remain in situ, forming a wall for liners or tiles, speeding up the build process and creating more energy efficient pools.
Retaining Walls
R-WALL has exceptional strength making retaining walls much quicker and easier to construct. Unlike modular ICF systems R-WALL can easily switch from one core size to another saving money and maximising build space.
Curves / Angles/ Cantilever's
With R-WALL their are no restrictions, the product can be used to create any angle of corner and any degree of curve!
Explore the Product
R-WALL is made up of 4 components and with these 4 components you can build anything! The 4 components and their functions are detailed below.
1. R-Board - Select your R-Board to select the energy efficiency of your superstructure
R-Boards are the insulation to your home and consist of XPS (Extruded Polystyrene) supplied in sizes of 2500mm long by 298mm high with thickness options as follows;
Eco -50mm (0.25 U-Value)
Standard - 75mm (0.18 U-Value)
Supreme -100mm (0.14 U-Value)
Superior - 125mm (0.11 U-Value)
Ultimate - 150mm (0.09 U-Value)
Any combination of board can be used internally or externally to the concrete core to achieve desired U-Values. This allows designs to better utilise Thermal Mass or altered for aesthetic purposes (e.g. adjusting insulation thickness to account for thicknesses of finishes).
2. R-Tie - Select your R-Tie to determine your concrete wall thickness
R-Ties provide the strength during pour of concrete and their length dictates the wall or concrete thickness. The choice of R-Tie will always be Structural engineer specified, the options available and their general usage are as follows;
105mm or 4" - internal walls
159mm or 6" - standard walls non retaining
212mm or 8" - retaining up to 3m
262mm or 10" - retaining walls 3m to 6m
313mm or 12" - retaining walls 6m +
Any combination of board can be used internally or externally to the concrete core to achieve desired U-Values. This allows designs to better utilise Thermal Mass or for aesthetic purposes (e.g. adjusting insulation thickness to account for thicknesses of finishes).
NEW
4" 105mm
R-Tie!
For internal
walls
3. R-Rail - binds coursing horizontally and becomes a fixing point to internal and external finishings
The R-Rail is a recycled plastic length 1250mm in length which attaches to the selected R-Ties and sits into the R-Boards to bind coursings. The R-Rail after pour becomes fixing points for plasterboard (no dot and dabbing just screw straight in!) and claddings.
3. R-Corner- a quick convenient way to form the perfect 90 degree corner
The R-Corner inserts into the formwork to fix and create easily the 90 degree corner. If alternate angles are required the R-Rail is extended into the corner and simply mitred to the desired angle. Easy!
To further compliment the R-WALL Formwork, why not choose the R-Floor Under slab system. The system seamlessly connects to the R-WALL, encasing the entire build in a full thermal envelope, preventing cold bridging and further enhancing the resulting energy efficiency of the home. Is this wasn't enough the R-Floor system is laid directly onto a sand blinding reducing concrete usage!
Mr Cummins
Brilliant product and exceptional customer service from Matt. So quick and easy to build and incredibly strong. This has got to be the future of building.
Mr Curtis
We wouldnt hesitate to recommend R-Wall. Fantastic service from start to finish with excellent on site assistance. This system is the future of building!
Mr Erwin
We couldn’t be more pleased with R-Wall. We have used other ICF systems in the past, but this system not only looks the best during construction but the strength of the product is amazing. Pour day was nothing but a pleasure, as was dealing with R-Wall from quote to completion. We would use them again and highly recommend to anyone wanting to build with ICF.
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