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<br /> <br /> <br /> <br />..Figure 3.22 Bracing.. <br /> <br />Figure 3.23 Knee Bracing <br /> <br />Lumber no less than two inches nominal <br />thickness should be used with bolted connections <br />because of the resistance to pullout forces by. the <br />bolted connection, Knee bracing should be bolted <br />to and r'un between the horizontal beam support- <br />ing the manufactured home and to the post or pile, <br />Diagonal bracing, as shown in Figure 3,24, is <br />bolted at the base of one post or pile and fastened <br /> <br />in a like manner to the adjacent post or pile just <br />below the manufactured home, Although diagonal <br />bracing is more likely to be struck by floating <br />debris than knee bracing, this is generally <br />outweighed by the greater lateral stability diagonal <br />bracing provides, especially in higher elevated <br />manufactured homes, <br /> <br />/: <br /> <br /> <br />~ <br />~~--~- <br /> <br />~ <br /> <br />Figure 3.24 Diagonal Bracing , <br /> <br />Steel rods, as shown in Figure 3,25, can <br />sometimes be used to diagonally brace wood <br />posts or piles, The rods are fitted through drilled <br />holes filled with wood preservative and fastened <br />with nuts and cast beveled washers, Welded con- <br />nections or drill holes can be used to provide rod <br />bracing in steel post or pile foundations, <br /> <br />Figure 3.25 Diagonal Bracing with Steel Rods <br /> <br />The severe flood and wind forces encountered <br />in coastal zones may require the use of additional <br />special bracing techniques which should be <br />designed in conjunction with qualified engineer- <br />ing consultants. <br />Perimeter Enclosure (Skirting)- The peri- <br />meter enclosure is a weather-resistant material <br />which encloses the area from the bottom of the <br />manufactured home to grade, It is primarily used <br /> <br />27 <br />