Each type comes with unique advantages.
Polystyrene bead insulation r value.
Select 2 to 4 items to compare.
Material costs are about 0 31 per square foot for each inch of thickness plus installation costs.
Insulation is a critical component of buildings.
Expanded polystyrene made from expanded foam beads that are molded into shape expanded polystyrene or eps is ideal for above grade applications such as exterior walls and offers an r value of 3 6 to 4 2 per inch.
Perlite and vermiculite granular fill offer an r value of up to 2 4 per inch according to the u s.
Expanded polystyrene insulation is similar to the foam used for packing peanuts and it s typically used for insulated concrete forms also knows as icf s.
This product typically has an r value of 3 6 to 4 0 per inch of thickness.
Department of energy while inspectapedia reports the r value of polystyrene beads at 2 3 per inch.
It provides r values that range from 3 6 to 4 2 per inch.
If the puffed beads fill the cavity the space can obtain r values close to that of fiberglass insulation.
Additional r value for a masonry wall constructed using these materials needs to add the insulating value of additional wall components typically included such as 1 solid foam polyisocyanurate r 8 extruded polystyrene r 5 expanded polystyrene r 4 or 1 of perlite r 2 7 and for an exterior air film winter no wind r 0 17 an interior.
Polyisocyanurate insulation materials polyisocyanurate or polyiso is a thermosetting type of plastic closed cell foam that contains a low conductivity hydrochlorofluorocarbon free gas in its cells.
Also called styrofoam insulation this is the least expensive material.
Expanded polystyrene foam eps is the cheapest and least used foam board product on the market.
Another application in construction for polystyrene beads is retrofit insulation of un insulated exterior walls.
Recent concerns have been raised about the brominated flame retardant hbcd hexabromocyclododecane for the organic chemists among us see flame retardant used in polystyrene to be banned by eu that is found in all polystyrene insulation both extruded.
Polystyrene loose fill or bead insulation typically has a lower r value compared to the foam board.
Loose fill polystyrene is a hazard.
Your images show mechanically crushed eps polystyrene.
