Another application in construction for polystyrene beads is retrofit insulation of un insulated exterior walls.
Polystyrene bead cavity wall insulation.
Benefiting from the excellent thermal values of eps ecobead platinum is a full fill cavity wall insulation supplied by a network of approved installers quick and easy without any waste.
Any rainwater penetrating the outer leaf will drain harmlessly to the footings.
Providing 100 cavity fill with no cold spots no waste and easy to install.
The thermo efficient qualities of custompac polystyrene bead make it a versatile wall cavity insulation material.
1991 approx bead size inches mm.
If the puffed beads fill the cavity the space can obtain r values close to that of fiberglass insulation.
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.
The use of polystyrene bead for cavity wall insulation does not prejudice the fire resistance properties of the wall.
The material is resistant to water penetration and will not transmit water across the cavity by capillary action or from below dpc level.
If properly installed these materials should theoretically be superior to mineral wool fibre as they are inherently waterproof.
With outstanding cavity wall insulating properties it is ideal for domestic commercial and industrial use.
There are two other materials commonly used for cavity wall insulation bonded polystyrene beads and foam.
The bonding agent is used to provide long term stability to the insulant.
Neither material is used as widely as mineral wool fibre because of cost.
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.
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.