18 Mar 2026
Internal Wall Insulation (IWI)
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Our high-performance insulation system upgrades the thermal envelope of properties and eliminates thermal bridging. Unlike any off-the-shelf products, this system is specifically designed for retrofitting internal wall insulation. Our Lightweight SWIP studs are easy to manoeuvre and cut, minimising disruptions and speeding up the installation process significantly in comparison to traditional methods. Our SWIP IWI system achieves the same thermal performance at a thickness of 95mm as other systems do at 130mm, offering significant space saving.
Video
Here is a recent example of an install of the Internal Wall Insulation system in a community house: https://www.youtube.com/watch?v=uJmUeHeaTN0&t=12s
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