This is done to save a money by the tract builders but leaves their buyers very unprotected.
I just received these photos from a modular home builder asking why are they are allowed to get away with this. The answer is simple. It's approved under current IRC regulations.
|Check out the siding job on this unfinshed tract house!|
Modular houses are built with either OSB or Plywood sheathing, not this thin piece of cardboard. The modular housing industry does not make it easy for robbers to get into your home.