When you obtain a commercial property insurance quote from an insurer, you will need to provide full details of the construction of the property, including details of how much of the property has a flat roof.
Over time, flat roofs are more prone to leaking than standard slate or tile roofs, and so there is more potential for water damage.
Many insurers include a ‘flat roof warranty’ clause, which requires a minimum level of maintenance be carried out on any flat-roofed areas.