Cavity Wall Insulation Beads Leaking

Similarly if your cavity walls were wrongly insulated this could cause you problems down the line.

Cavity wall insulation beads leaking.

The process seems simple drill into the outer wall inject a fibre or bead insulation into the cavity make good the holes sit back and enjoy reduced energy bills. The problem is that this fills the cavity with a material that can allow water to cross the cavity causing dampness and if the material is not evenly distributed cold spots where insulation is missing can attract condensation. The bonding agent creates a stable continuous layer within the cavity preventing any movement or sagging of the insulation over time and also any loss of bead if the walls are drilled at a later date. Plumbing pipes and leaks copper water pipes in the wall are usually secure but occasionally one may develop pinhole leaks and spray enough water to cause insulation problems.

If you re installing cavity wall insulation it s worth opting for a modern insulating material with proven performance. When beads are injected into the cavity wall they are injected with a upvc glue which binds all the beads together. Eps expanded polystyrene beads and polyurethane foam are the most commonly used these days and with good reason. Why are the beads bonded together.