In existing homes, cellulose (here) or other loose-fill materials can be installed in building cavities through holes drilled (usually) on the exterior of the house. After the installation, the holes are plugged and finish materials replaced. | Photo courtesy of Cellulose Insulation Manufacturers Association.
Southwire 63946872 Nonmetallic With Ground Sheathed Cable by Southwire. $124.75. Type NM B cable is designed specifically for use in residential and commercial wiring of branch circuits. Installation above ground and in dry locations only. Approved for service to 600V. PVC jacket and PVC insulated, nylon jacketed conductors with ground (WG). Flame retardant and crush resistant. UL listed.. Save 30% Off!