Prepping for RetroFoam
Installers prep for RetroFoam to be injected into the wall by drilling small holes between each stud.
Drilled Holes Plugged
Once done with injecting the foam into the walls, installers plug each hole. The homeowner can decide whether to patch up and paint these holes in his garage.
RetroFoam Injected in Every Wall
RetroFoam is injected between each stud, even below windows.