47.5 MB - The Whole Building Design Guide

mph, those used for hurricane shelters, and to critical facilities intornado-prone regions that do not have shelter space designed inaccordance with FEMA 361.Figure 3-44:The red arrows show the original location ofa CMU wall that nearly collapsed following arolling door failure. Hurricane Charley (Florida,2004)Wall CoveringsThere are a variety of exterior wall coverings. Brick veneer, exteriorinsulation finish systems (EIFS), stucco, metal wall panels, andaluminum and vinyl siding have often exhibited poor wind performance.Veneers (such as ceramic tile and stucco) over concrete,stone veneer, and cement-fiber panels and siding have also blownoff. Wood siding and panels rarely blow off. Although tilt-up precastwalls have failed during wind storms, precast wall panelsattached to steel or concrete framed buildings typically offer excellentwind performance.Brick veneer: 8 Brick veneer is frequently blown off walls duringhigh winds. When brick veneer fails, wind-driven water can enterand damage buildings, and building occupants can be vulnerableto injury from wind-borne debris (particularly if the walls are8. The brick veneer discussion is from Attachment of Brick Veneer in High-Wind Regions - Hurricane Katrina Recovery Advisory (FEMA,December 2005).MAKING CRITICAL FACILITIES SAFE FROM High Wind3-59