Insurance Required During Construction and Any Subsequent Significant Remodeling, Rebuilding and Reconstruction. Prior to commencement of any work in connection with the Construction (including demolition), significant remodeling, reconstruction, rebuilding or alteration of the Project Improvements or any other improvements (other than construction of subtenant space and other similar interior or minor construction), and until completion of such work, Tenant shall maintain or cause to be maintained, at no cost to Landlord, the types of coverage required in this Section 9.1.