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cavity wall insulation
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The process of injecting insulation into the gap between a property’s inner and outer walls. It greatly reduces heat loss through the walls. As a rough guide, pre-1930s homes have solid walls with no cavity.
Filling an existing wall cavity with insulation is generally the cheapest and least disruptive way of insulating a wall. The thickness of insulation is limited by the width of the cavity and the cavity needs to be at least 50mm for the process to be successful.
Related category
• INSULATION TOPICS
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