In 1997, the state of Wisconsin came out with a new code for measuring R-values in masonry. This effected masonry wall systems tremendously. With this in mind, officers of Ed Prager and Sons attended a masonry conference in which they came across PolyMaster foam insulation. As it turned out PolyMaster had an injected foam insulation which increased the R-value by 43% over any other masonry insulations on the market. Realizing the impact on our market, MasterFoam Insulation was born in April of 1997.