Method for retrofitting a register box with an expandable polymeric foam material

A method of insulating a register box, the register body having a body and a duct which opens to an interior of the body, the register box being attached to a sheetrock, the body of the register box having an opening extending through a thickness of the sheetrock, the method comprising:

• accessing the register box such that the interior of the register box can be reached;
• removing existing insulation from the interior of the body of the register box;
• injecting an expandable polymeric material into the interior of the body of the register box of the register box, the step of injecting comprising:
• positioning a panel over the opening of the body of the register box, the panel having a port therethrough;
• extending a portion of a foam gun through the port of the panel so as to enter the interior of the body of the register box;
• and
• directing the expandable polymeric material from the foam gun toward a wall of the body of the register box;
• and
• allowing the expandable polymeric material to cure for a period of time within the interior of the body of the register box.

A method of insulating a register box, the register body having a body and a duct which opens to an interior of the body, the register box being affixed to a floor, the body of the register box having an opening extending through a thickness of the floor, the method comprising:

• accessing the register box such that the interior of the register box can be reached;
• removing existing insulation from the interior of the body of the register box;
• injecting an expandable polymeric material into the interior of the body of the register box of the register box, the step of injecting comprising:
• positioning a panel over the opening of the body of the register box, the panel having a port therethrough;
• inserting a foam gun into the opening of the body of the register box;
• and
• directing the expandable polymeric material from the foam gun toward a wall of the body of the register box;
• and
• allowing the expandable polymeric material to cure for a period of time within the interior of the body of the register box.