With the tape measure, measure the height of the first wall cavity from top to bottom ... inch or smaller are best filled with expanding foam insulation. For larger areas, use the insulation ...

Otherwise, spray foam insulation could cause new problems. Spray foam is also worth considering if you have hard-to-treat cavity walls or solid walls that aren’t suitable for external insulation due ...

A registered installer will check your property’s suitability for cavity-wall insulation and recommend the best type to use. Commonly used insulating materials include mineral wool, polystyrene beads ...

Three main types of blow-in cellulose insulation are used in residential application: loose fill, stabilized, and wall-cavity spray. Spray-in or spray-on polyurethane foam expands to fill cracks ...