HomeBenchmark buying guide
Should you consider cavity wall insulation?
For a suitable uninsulated cavity-wall home, filling the cavity can reduce a major heat-loss route and improve internal wall temperatures. Suitability assessment is essential because not every cavity or exposure condition should be filled.
- Warmer internal wall surfaces.
- Reduced heat loss and heating demand.
- Potentially lower condensation risk on previously cold wall surfaces when the building remains properly ventilated.
- A better thermal starting point for future low-temperature heating.
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