Cavity wall pumping consists of pumping an insulated bead into a cavity mixing it with a water-based adhesive to insure of a bonded bead within the cavity.

Done right, pumped CWI is noted as being the most effective and efficient method of insulating a home to meet modern standards and specifications while at the same time being hugely cost effective.

The bead that is pumped has a thermal conductivity of 0.033W/m.K per KIWA and once installed is protected in service from agents liable to cause deterioration and will be effective as insulation for the life of the building in which they are installed.