Passive Slab believe that energy efficiency starts from the ground up. Our advanced insulated foundation systems are engineered specifically for low-energy, Passivhaus homes and other sustainable developments across the UK.
Passive Slab delivers a complete insulated foundation solution that combines cutting-edge insulation, structural strength, and simplified installation — helping homeowners, architects, and developers build better from the start.
Whether you’re looking for a straightforward supply-only package, on-site assistance at key stages, or prefer a fully installed foundation system managed by our experienced team — we’ve got you covered. Choose the level of support that works best for your project.
A Passive Slab is a high-performance, fully insulated foundation system designed to meet the strict energy standards of Passivhaus and low-energy builds. Using high-quality, high density pre-cut and pre-formed insulation panels from Izodom along with an in-situ reinforced concrete slab, Passive Slab foundation forms an efficient base beneath the structure.
At Passive Slab, we do more than simply supply a product — we provide a complete foundation solution. From concept to completion, our team is here to support you by offering;
- a completely pre-cut and preformed insulated foundation system
- provide on-site assistance for self-installed projects
- undertake a supply and install service
- engineering and design
- a one stop solution from engineering design through to a poured concrete slab.
Typical Applications for Passive Slab
- Passivhaus homes
- Low-energy homes
- Home extensions
- Timber frame and SIPs builds
- ICF construction
- Commercial low-energy and Passivhaus builds
Why Choose Passive Slab?
Outstanding Thermal Performance
Our foundation achieves U-values from 0.09W/m2K to 0.14W/m2K (p/a ratio dependant) — significantly outperforming traditional foundation and building systems.
No Thermal Bridging
Our system completely isolates the building from the ground and aids the removal of the ground floor / wall junction thermal bridge.
Rapid, Efficient Installation
The Passive Slab system is designed for speed and simplicity. With pre-cut insulation connecting with tongue & groove and dovetail joints along with a step-by-step construction method, build time is reduced significantly.
Less waste. Less hassle. Fewer delays.
Designed for All
Whether you're a self-builder, architect, contractor or developer Passive Slab provides the foundation performance you need.
Weblinks
Website – www.passiveslab.co.uk
Instagram - https://www.instagram.com/passiveslab/
Linkedin - https://www.linkedin.com/company/passiveslab
