Effective April 16, 2012, Dow Building Solutions, a division of The Dow Chemical
Company will increase all prices on STYROFOAM™ Brand Extruded Polystyrene
Insulation products sold in the United States in the amount of seven percent (7%)
and increase
the prices on Dow Polyisocyanurate Insulation products sold in North America by nine
percent (9%).

see attached for more details