One way to ensure that a house is built according to its specifications is by performing a pre-drywall inspection. “Pre-drywall” refers to a phase during the home building process just after the installation of certain elements – such as the doors, windows, foundation, flooring, wall and roof components, plumbing and electrical rough-in – and right before the drywall is hung. This in-progress or construction-phase inspection is useful because drywall can obscure some aspects of the interior and make identifying or fixing any problems both difficult and expensive, once the new home is completely finished.
A pre-drywall inspection can be performed after the insulation is installed, which is convenient because it allows the home inspector to determine whether it was done properly. However, the insulation may conceal some components in much of the same way that drywall does.