Insulated Raft Foundation

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Future Found - Insulated Raft Foundation System

The Fast, Energy Efficient, Low Carbon Foundation System for Modern Construction

Future Found is a high-performance insulated raft foundation system designed to deliver excellent energy efficiency, structural stability and fast build times.

Providing a modern alternative to traditional footings, it can help you to reduce concrete use, improve thermal performance and streamline your build.

Suitable for use across a wide variety of building types and ground conditions, Future Found offers a reliable and efficient foundation solution, ensuring both ease of installation and peace of mind for developers and contractors alike.

Build-Lite are a leading UK Supplier of Insulated Foundation Systems and EPS based products.

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Why choose Future Found Insulated Foundation?

  • Reduce concrete by up to 40% – Compared to traditional strip foundations
  • Faster installation Reach finished floor level in one pour
  • Minimise labour & plant costs – Up to a 50% reduction in machinery requirements
  • Exceptional thermal performance – Eliminate heat loss at the wall-to-floor junction
  • Passivhaus ready design – For ultra low energy projects
  • Compatible with all main build systems – Brick & Block, Timber Frame, SIPs, ICF & Modular
  • BBA Certified  – Fully compliant, build with confidence

Insulated Raft Foundation

Thermal Performance

Eliminate Cold Bridging

Future Found provides a continuous insulation layer beneath and around the slab, virtually eliminating cold bridges.

With project specific design, Future Found can achieve:

  • U-Values – As low as 0.08 W/m²K
  • Psi Values – As low as 0.06 W/m²K

Why Cold Bridging Matters

Cold bridging (also known as thermal bridging) occurs when parts of a building’s structure — such as concrete, steel or masonry — conduct heat much more readily than the surrounding insulated elements. These “weak spots” allow heat to escape (or cold to enter), reducing the overall thermal efficiency of the building, increasing energy use for heating (or cooling), and potentially creating condensation or cold spots at floor-wall junctions.

How Future Found Removes Cold Bridges

With our insulated raft foundation system, the slab and ground-floor area are completely encased in a continuous layer of high-performance EPS insulation before the concrete is poured. This creates a fully insulated thermal envelope beneath and around the slab, meaning that there is no break in insulation around the floor-to-wall junction. As a result, thermal bridges — which are a particular problem where the floor meets external walls — are effectively eliminated.

Structural Performance

Building Types

Our insulated foundation system offers complete versatility and can be adapted to suit a wide range of building types.

  • Cavity Wall
  • Timber Frame
  • Modular & Steel Frame
  • ICF (Insulated Concrete Forms)
  • SIPs (Structural Insulated Panels)

Capable of line loads up to 70kN per metre with no restrictions on building height or number of storeys, our system is one of the most versatile solutions on the market.

Whether you’re working on a traditional build or a modern, energy-efficient project, Future Found provides a reliable, high performance solution.

Enhanced Compatibility & Performance Across Ground Conditions

  • Ground Bearing Pressures as low as 50kPa – with potential to go even lower (subject to ground investigation review)
  • Damp Proof Membrane (DPM) Ready 
  • Underfloor Heating (UFH) Ready

Because the raft spreads structural loads evenly, it performs exceptionally well on soft, unstable, or contaminated ground, often reducing or eliminating the need for deep foundations or costly ground improvement.

The design works seamlessly with damp proof membranes and underfloor heating, providing a stable, fully insulated base that maximises heat retention and creates a robust moisture barrier that protects the slab and internal structure from ground damp.

Gas Protection

  • Gas Protection to CS3 / Amber 2 Classification – Without the need for ventilation voids

Our insulated raft foundation system is fully compatible with a range of gas protection membranes, significantly reducing the risk of gas (such as Radon) ingress – when correctly installed with compliant membranes.

Streamline the Construction Process

Reduce Costs

  • Reduce Labour and Machinery Requirements by up to 50% – Compared to traditional foundations

Beyond its energy-saving capabilities, Future Found streamlines the construction process, reducing both material costs and labour expenses. It’s easy to install, pre-engineered formwork cuts down build labour and machinery requirements, with minimal ground preparation.

Reduce Concrete Use and Waste Removal

Our foundation system significantly reduces concrete usage compared to traditional foundations, which lowers material costs and environmental impact.

  • Concrete Usage – Up to a 40% reduction in concrete usage compared to traditional foundations.
  • Reduced Waste – Optimised design reduces material waste, waste removal and disposal costs.

Designed & Engineered for Excellence

We Can Design the Foundation For You

With comprehensive design and engineering services available, from initial consultation to delivery, our expert team works closely with you to deliver the specific needs of your project.

Our engineering expertise, combined with the latest design technologies, allows us to offer tailored solutions that meet or exceed all relevant industry standards, ensuring compliance and peace of mind.

Certification

Our insulated raft foundation system has undergone rigorous testing and has been certified by The BBA, ensuring quality and performance standards.

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Frequently Asked Questions

Yes, our system can be produced to meet Passive House standard.
This can vary depending on the size and complexity of the requirement. Generally, we find that the system is installed and finished floor level reached within one week.
Future Found is suitable for most wall construction types, such as brick/block, timber frame, ICF, steel frame & modular.
Yes, we can offer engineering services. This includes designs, manufacturing drawings, calculations, and P.I Insurance.

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Contact our team to discuss your project or request a quotation

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