What are the styrofoam sheets called?
expanded polystyrene
The word Styrofoam™ is often used to describe expanded polystyrene (EPS) foam; however, ‘Styrofoam’ is actually a trademarked term for closed-cell extruded polystyrene foam made for thermal insulation and craft applications. EPS foam is the correct term for any form of expanded polystyrene.
Is foam board and styrofoam the same?
Styrofoam is made out of styrene which is a petroleum-based product. How is styrofoam made? Through polymerization, styrene is refined into polystyrene and then a hydrofluorocarbon agent is added. This combination is then extruded and allowed to expand under pressure until it forms a foam board.
Are there different types of Styrofoam?
Three major types of polystyrene include polystyrene foam, regular polystyrene plastic, and polystyrene film. Amongst the different types of foam are expanded polystyrene (EPS) and extruded polystyrene (XPS). EPS includes the most well-known and common types of polystyrene to include styrofoam and packing peanuts.
What does SM stand for in Styrofoam?
Styrofoam SM extruded polystyrene (XPS) foam Insulation is a versatile, multipurpose board that fits the needs of the commercial and residential foundation and slab market. The freeze-thaw cycling of the foundation wall is minimized, reducing the possibility of cracking.
Why is Styrofoam bad?
Styrofoam is not only a dangerous air pollutant but also poses a great threat to humans, the environment, and animals. The worst part is that Styrofoam takes over 500 years to decompose and in the process, it leaches harmful chemicals into the environment.
Is Styrofoam cheaper than plastic?
Cost. If price is your main concern, plastic is the less costly option. It is lighter, which makes manufacturing and shipping less expensive. Styrofoam is a little more expensive to purchase, but it does double as a hot and cold drink cup, so it may be more cost-effective in the end, depending on your intended use.
What are the disadvantages of Styrofoam?
When used with food products, especially when heated, Styrofoam releases toxic chemicals into the food causing a contamination which can be hazardous to your health In addition, when exposed to sunlight,Styrofoam creates harmful air pollutants which contaminate landfills and deplete the ozone layer.
What is the R-value of 1 inch foam board?
R-values can range from 3.6 to 4.2 per inch.