Editing Styrofoam (section)

== Uses ==

Styrofoam has a variety of uses. Styrofoam is composed of 98% air, making it lightweight and buoyant.<ref>{{cite web| url= http://www.forte-eps-solutions.com/styrofoam-sheets-polystyrene-insulation-difference-new-jersey-new-york-ontario-quebec.html|title= What is the Difference between EPS Polystyrene and (styrofoam)?}}</ref>

DuPont produces Styrofoam building materials, including varieties of [[building insulation]] sheathing and pipe insulation. The claimed [[R-value (insulation)|R-value]] of Styrofoam insulation is approximately 5 °F⋅ft<sup>2</sup>⋅h/BTU for 1 inch thick sheet.<ref>{{Cite web |title=Dow Announces New Technology for STYROFOAM Insulation |url=http://building.dow.com/media/news/2007/20071205a.htm |archive-url=https://web.archive.org/web/20110812230057/http://building.dow.com/media/news/2007/20071205a.htm |archive-date=2011-08-12}}</ref>

Styrofoam can be used under roads and other structures to prevent soil disturbances due to freezing and thawing.<ref>{{cite web|url=http://building.dow.com/na/en/applications/geotech/index.htm|title=Geotechnical applications of Styrofoam|publisher = Dow Chemical| access-date=2009-10-28}}</ref><ref>{{cite web|url=http://www.alaskool.org/resources/regional/nw_reg_pro/permafrost.html|title=Engineering considerations when building on permafrost|access-date=2007-08-30}}</ref>

DuPont also produces Styrofoam blocks and other shapes for use by [[florist]]s and in craft products.<ref>{{cite web|url=http://craft.dow.com|title=STYROFOAM Brand Foam Crafts| access-date=2010-12-31}}</ref> DuPont insulation Styrofoam has a distinctive blue color; Styrofoam for craft applications is available in white and green.<ref name="nocup"/>