Which Cavity Wall Insulation?

Thermal and Moisture Performance
mineral fiber, XPS or EPS insulation options, so is particularly well-suited for masonry cavity walls, given the 1-inch minimum air space requirement.

Which cavity wall insulation is best?

Foam. Foam insulation, typically made of polyurethane, has been hailed as the best thermal cavity wall insulation.

How do I choose cavity wall insulation?

If the cavity is very small or polluted for example, insulation with polyurethane foam will generally be the best choice. In other cases, glass wool or EPS beads may be a better solution. Therefore, a thorough inspection of the cavity and exterior wall is required in order to determine the best material.

Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.