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� Mark Beltrand <br /> Ulteig Project No.206.1648 <br /> February 1,2007 <br /> Page 2 <br /> OBSERVATIONS AND COMMENTS <br /> 1. The following information was obtained through a site inspection on January 4, 2007 <br /> by Jason Hanlon, PE, of Ulteig Engineers: <br /> a. The roof trusses span approximately 20'-3" with a 1'-6" eave. <br /> b. The roof trusses are spaced at 2'-0" on center. <br /> c. The roof trusses are constructed with 2x4 Douglas-Fir members with an <br /> allowable bending stress of Fb=1500 psi. <br /> d. The owner wishes to have a 1'-0" vault in the master bedroom. See S1 for <br /> location and more information. <br /> Note: All observations were based on visual observations within the bedroom and <br /> within the above attic space. If the contractor finds different member sizes or <br /> grades for truss members, the contractor must notify Ulteig prior to <br /> continuing work. Ulteig is available to complete an on-site inspection of the <br /> existing trusses once the area has been opened exposing the existing trusses. <br /> The contractor shall call Ulteig to schedule the inspection if needed. <br /> STRUCTURAL ANALYSIS <br /> 2. A structural engineering analysis was performed and the following items are noted: <br /> a. A new 2x4 Douglas-Fir No. 2 member is to be added 1'-0" above the bottom <br /> chord, see S2 for location. Fasten member to top chord at each end with (8) <br /> 10d nails and to all web members with (4) 10d nails. It is to be spliced by <br /> sistering a 6'-0" long 2x4 centered about the splice location with 10d nails at <br /> 3" on center, staggered or provide a Simpson LSTA18 with (14) 10d nails each <br /> side of inember at splice location. See S2 for more information. <br /> b. Approximately 3'-6" from the interior face of the wall a 2x4 Douglas-Fir No. <br /> 2 member is to be added from the bottom chord to the new member noted <br /> above at a 6/12 pitch each side of the truss. Fasten each end of the member <br /> with (4) 10d nails. See S2 for more information. <br /> c. The existing truss may have four member removed. See S2 for the location of <br /> these members. <br /> d. A 1/z" plywood gusset is to extend 2'-0" on each side of the start of the vault <br /> and fastened to all members with 10d nails at 3" on center, staggered. Scab <br /> members as required. See S2 for more information. <br />