When should fire-resistance-rated construction inspections be conducted?

Fire-resistance-rated construction inspections play a crucial role in ensuring that building elements maintain their intended fire-resistance performance. The correct timing for these inspections is after the sheetrock has been installed but before any plaster is applied. This is important because, at this stage, the inspector can verify that all fire-resistance-rated assemblies are properly constructed, including the installation of fire-stopping materials and any necessary seals around joints and penetrations.

Conducting the inspection at this time allows for clear visibility of the components that contribute to fire resistance, such as the drywall's thickness and type, which must meet specific regulatory requirements. If the inspection were to be conducted after plaster is applied, any deficiencies or installation errors may be concealed, making it impossible to ensure compliance and safety.

In comparison, conducting the inspection after framing is complete may miss critical aspects of the fire-resistance-rated assemblies that become important once the interior finishes are added. Inspections only before construction activities or after occupancy can result in significant risks to life safety and property, as any issues with fire-rated assemblies would go unaddressed. Thus, the timing of the inspection after sheetrock installation supports a proactive approach to fire safety in buildings.