The R-factor of a material signifies how quickly heat conducts heat conducts across it. The higher this number the better the insulation works.
Our urethane foam has an R-factor of more than 32 (R32), most polystyrenes are only R19.
American Panel uses absolutely no polystyrene or unexpanded hard rail urethane in the manufacturing of their walk-ins. This ensures that our panels are of the highest degree of quality and reliability.


When we create our walk-in panels, we start with an interior and exterior metal skin. Foam chemicals are then injected between the two skins. The foam then expands to uniformly fill the entire area between the two skins. This allows our foam to hold the panel together eliminating the need to put extra fasteners, adhesives or straps within our panels.