Generally no. A facility must be in active use when the incident period starts. The exceptions: it was only temporarily closed for repairs or remodeling, its future use was set in an approved budget or plan, or you can clearly show you intended to put it back in use soon. A facility that was only partly in use is funded in proportion to the share that was active.
Evidence the facility was in active use when the incident period began, such as occupancy, operating or utility records. For an exception: the repair or remodeling contract, the approved budget or plan for future use, or documents showing your intent to resume use soon. For partly used facilities, records of the share of space in active use.
Vacant or mothballed buildings are a common denial. If part of a building was empty, expect FEMA to prorate shared repairs such as roofs. Document the occupied square footage yourself before FEMA estimates it for you.