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A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · X · Y · Z   entire Web this site cavity wall insulation 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 Also on this site: Encyclopedia of Science Transport Concepts & Designs (partner site) BACK TO TOP