Insulated Foundations
(also known as Passive Slabs)
Exceptional Strength and Durability
Solid reinforced concrete walls withstand extreme weather, resist rot and rust, and are designed for long-lasting performance.
Continuous insulation and thermal mass reduce heating/cooling costs and maintain stable indoor temperatures
Superior Energy Efficiency
Concrete core and treated insulation provide multi-hour fire protection, enhancing safety.
Fire Resistance
Lightweight forms simplify assembly, reduce construction steps, and shorten build times.
Fast and Efficient Construction
Insulated foundation systems are at the forefront of modern, energy-efficient construction, combining structural integrity with thermal efficiency. They provide a smart, integrated solution for significantly reducing heat loss and energy costs
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TSD provide comprehensive engineering design services tailored to insulated foundation solutions. Our team carefully considers load paths, ground conditions, and insulation performance to deliver designs that are robust, cost efficient, and compliant with all relevant regulations. Where necessary, the insulated foundations can be adapted and upgraded to a passive raft, or incorporate piles, for poor ground conditions. We work with all major insulated foundation providers in Ireland, including Kore, Castleforms, and Kingspan Aerobord.
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By partnering with TSD, you gain an experienced engineering team that understands the critical balance between strength, durability, energy performance and cost. From concept through to construction, we collaborate closely with architects, contractors, and clients to deliver practical, buildable solutions.
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We work on a wide variety of projects from single one-off homes to large multi-unit developments and commercial buildings. We have successfully delivered structural designs for hundreds of insulated foundations in Ireland and the UK.
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Fast build times thanks to off‑site manufacturing and rapid on‑site assembly
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Superior energy performance with high insulation levels and reliable airtightness
Lower running costs due to reduced heat loss and improved thermal efficiency
Sustainable material choice using renewable timber with low embodied carbon
Consistent quality from factory‑controlled production and precision engineering
Design flexibility allowing a wide range of layouts, spans and external finishes
Reduced foundation requirements because timber‑frame structures are lighter
Cleaner, quieter sites with less waste, fewer deliveries and shorter disruption
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