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.
An important element to a pre-drywall inspection is the inspection report. Most home inspectors typically include photos and/or video. These are especially beneficial to the client because of the level of detail that they can provide. When it comes to documentation, more is more!