Polystyrene Bead Cavity Wall Insulation

If the puffed beads fill the cavity the space can obtain r values close to that of fiberglass insulation.

Polystyrene bead cavity wall insulation.

Providing 100 cavity fill with no cold spots no waste and easy to install. For the safety of our customers our standard bead polystyrene cavity wall insulation is manufactured with a flame retardant additive and tested to bs476 part 12. The material is resistant to water penetration and will not transmit water across the cavity by capillary action or from below dpc level. Polypearl is injected as individual eps insulation beads which then form a consistent matrix inside the cavity using an adhesive to hold them in place.

If properly installed these materials should theoretically be superior to mineral wool fibre as they are inherently waterproof. The use of polystyrene bead for cavity wall insulation does not prejudice the fire resistance properties of the wall. We use graphite 27 plus cavity wall insulation beads which consists of an expanded polystyrene material in bead form which is injected into the wall along with a bonding agent. Thermabead cavity wall insulation are industry leaders in providing high performance injected blown bead insulation systems.

There are two other materials commonly used for cavity wall insulation bonded polystyrene beads and foam. In this application the puffed beads are poured into the wall cavity between the studs by drilling a hole in the top of the wall. The thermo efficient qualities of custompac polystyrene bead make it a versatile wall cavity insulation material. Another application in construction for polystyrene beads is retrofit insulation of un insulated exterior walls.

In 2006 polypearl designed and developed the polypearl platinum bonded bead system which has graphite added to the polystyrene beads to improve their energy saving qualities and they are very pleased to say the unique system has quickly gained universal recognition as being the best cavity wall insulation that money can buy. With outstanding cavity wall insulating properties it is ideal for domestic commercial and industrial use. The polystyrene bead can be injected into spaces other insulation materials might not be suitable for such as. Any rainwater penetrating the outer leaf will drain harmlessly to the footings.

Neither material is used as widely as mineral wool fibre because of cost.