This is the same stuff your disposable coffee cup and is made out of and it s used to protect fragile items in their packaging.
Expanded polystyrene foam board insulation uses.
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.
Expanded polystyrene foam eps is the cheapest and least used foam board product on the market.
It performs well as insulation for garages pole barns basements and crawl spaces.
The word styrofoam is often used to describe expanded polystyrene eps foam.
It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.
Eps is used under roofing over foundation walls and beneath siding.
It can be used anywhere insulation is needed.
Eps is used for food containers molded sheets for building insulation and packing material either as solid blocks formed to accommodate the item being protected or.
This product typically has an r value of 3 6 to 4 0 per inch of thickness.
Expanded polystyrene also referred to as eps white board and bead board has the lowest r value of the three rigid foam board insulation types but is the most economical and versatile.
Eps foam is the correct term for any form of expanded polystyrene.
However styrofoam is actually a trademarked term for closed cell extruded polystyrene foam made for thermal insulation and craft applications.
It is usually white and made of pre expanded polystyrene beads.