This paper presents an experimental investigation of the performance of shutter systems designed to protectwindowsfromwindbornedebris.Observationsfromposthurricanedamageinvestigationshave found that a wide variety of windborne debris types cause damage to buildings, including roof tiles in residential neighborhoods. This investigation subjected steel and aluminum storm panel shutters to impact from concrete roof tiles commonly used in hurricane prone regions. 4.1 kg (9 lb) tiles were launchedat15.25m/s(50fps)usingacustomapparatus,duplicatingthe2×4(in.)lumberimpactproduct certificationtestinbothmissileweightandimpactspeed.Thetestswerethenrepeatedusing2×4lumber, providingacomparisonofperformanceasafunctionofdebristype.Thetestmatrixincludedsteelpanels of three different thicknesses and aluminum panels of two different thicknesses. Three manufacturers of each of the five storm panel types were tested, each using two common installation methods. Tests wereconductedwithtilesimpactingontheiredgeandimpactingflat.Resultsdemonstrateasignificant difference in both total and plastic shutter deflection for tile impacts vs. 2×4 lumber. With regard to the vulnerability of the glass being protected, the results suggest that the current standards may not be conservativeundercircumstanceslikelytooccurintileroofresidentialneighborhoods.