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22MANYOFTHEPARTSUSEDBYSTRUCTURALDYNAMICSAREFABRICATEDINHOUSE.22TheeconomyisabigvariableinCarlsonsbusinessofcourseandheshadtostayexibletomeetrecentchallenges.Whenthevalueofrealestatecrashespeoplehavetroublejustifyingtheexpenseoffoundationreplacementespeciallywhenthehousenextdoorisforsaleatthesamecostastherepairsalone.Ontheotherhandhehasfoundthattheinspectionsideofhisbusinessremainsstronginthisprecariouseconomicenvironment.Attheheightofthebuildingboomhousesweregoingupveryquicklysomeofthemtooquickly.TodayCarlsonisseeingdamageinverynewhomesthatareliterallysinkingintotheearth.Whilemostdevelopersareconscientiousafewdontspendthetimeormoneytotestorproperlypreparethesoilbeforebuilding.CarlsonexplainsThehardclaysbelowthetopsoilinthisareaareverystablebutiftheresalayerofpeatunderneathoralayerofimproperlycompactedllmaterialthebuildingwilleventuallysinkintoit.Youcanttellitstherewithoutsoilborings.OneoftheworstcasesofthistypeofdamagethatCarlsoncanrecallwasa5-year-oldhomeinAurorathatwasmorethan9inchesoutoflevel.Stabilizingbuildingswiththesesortsofissuescallsfordrivingsteelpilesintothegroundattachingthemtothefoundationwallswithbracketsandthenliftingtheentirebuildingalongwithitsfoundationbacktoalevelposition.ThesystemsrequiredforsuchajobmustoftenbecustomdesignedandfabricatedbyCarlsonandhiscrew.Someproblemsarisesimplybecausehomeownersdontthinklikeengineers.Agooddealofwhatcangowronginabuildingiscausedbyerrororignorance.IvebeeninatticswherepeoplewantedtocreatemorestoragespaceCarlsonsayssotheycutoutallthediagonalmembersoftherooftruss.Wehavetogoinandrebuildit.Itsamess.InanotherinstanceCarlsongotacallfromamanwhocouldntunderstandwhyhisoorsweresagging.WhenIgotthereheremembersIfoundbasicallyalibraryinhishousebookswerestackedfromoortoceilingrowafterrow.Thejoistswerecrackedandtheoorwasreadytocaverightin.Itwasarealemergencysituation.SUCCESS