What is Spray Foam Insulation? Spray foam insulation in residential property generally refers sprayed polyurethane (PU) foams. These are often applied to the underside of roof coverings in domestic dwellings. What are the reasons for applying spray foam? There are two main types of spray foam insulation used in domestic dwellings: 1. Closed Cell Polyurethane Sprayed Foam 2. Open Cell Polyurethane Sprayed Foam   Closed Cell: This is primarily used to stabilised failing roof

A quick guide on condensation and mould issues in homes