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� <br /> ! � <br /> �,,, � <br /> � <br /> � PERRELLA <br /> & associarEs <br /> consulting engineers <br /> '�r� (206) 865-9088 <br /> ��y PD Box 5704, Bellevue, WA 98006 <br /> a�� <br /> y �H December 13. 1991 <br /> �e o <br /> �_� <br /> "�� H'i1 <br /> VJ H <br /> � z� . <br /> � H d Mr. & Mrs. Petersor� <br /> � �g 5104 Frnvler <br /> �• � Evereri, WA 98203 <br /> z H� Ref: 10144 <br /> H <br /> h-i H <br /> gd v� Dea� Ruth and Ken: <br /> � �r <br /> x �vi This letter summarizes the resulis oi an inspection performed on this date lo determine ii any <br /> y °�' signiticant structural damage. over and above the obvious local damage, occurred to your <br /> residence as a resuit oi the impacts hom two recently blown ovx Vees. <br /> The d•ywall had been removed from interia walls which received the most direct impact <br /> ; damage. I did not see any evidence oi signiiicant structural damage to the wall structure, to <br /> the ceiling teams or their supporting ends. The aacks in the d�ywall under the skylight aze not <br /> ���1 stucturally significant and can easily be patched. <br /> The most severe damage occurred to the rooi structure belween the garage and the house. <br /> (�I Replacement of the tive missing or damaged trusses, suppating beams, and rooi structure <br /> wili be necessary. As the rooi is replaced. additional damage to other truss or rafter segments <br /> '„� �' may be found, but that is unlikely. <br /> � The tioor support posts in the garage were all slightly out of plumb, but I do not believe that <br /> was the result oi rebound from the impact. The damping characteristics of wood framed <br /> C��"'j structure would make that much reverse movement unlikely, and there was no evidence ot <br /> aacks in the garage d�ywall. Some posts and many garage iloor joists were severely <br /> _ decayed. While not connected with the imppct damage, replacement oi decayed structure is <br /> � 1 I necessazy since the iloa is in danger of collapsing. The probable cause oi the decay is a <br /> � water leak al the front corner of the gazage wall at the intersection of the pavement. <br /> ,,,,�� The toundation was in very good condition. Two minor cracks were noted, neither of which is <br /> of structural concern and which do not requ�e any repairs. The cracks in the one floor support <br /> . � <br /> post aze not structurally signiiicant. <br /> �yr.. . � . _ � . � . . <br /> , = <br />