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HomeMy WebLinkAbout214 Cajetan St - Special Inspections/Engineering - 11/01/2013crown zn9i*Wrin9, Structwxt Z"ineeri" * Inspections November 1, 2013 FR Development, Ltd. 345 E. Mountain Avenue Fort Collins, CO 80524 Re: Framing Modifications for 214 Cajetan Street, Fort Collins, CO Crown Engineering, Ile. Project No. 225-01-01-06 Gentlemen: As requested, we have reviewed several framing modifications of the home under construction at the above referenced location. Among the modified items were deck joist changes, modified second floor framing, a two section balloon wall, a girder truss that was changed to a microllam beam and upper deck landings that will need to be hung to their supporting posts. For the second floor deck, the 9-1/2" TH joists were replaced with 2x8 deck joists spaced at 16" on center. It is our opinion that the 2x8's will adequately support the imposed design loads. A section of second floor framing was placed to run perpendicular to the 1-11 7/8" LVL that spans from a center beam to the west side wall and cantilevers to create the floor of bedroom #2 above. It is our opinion that the 1-11 7/8" Microllam that supports these floor joists is still adequate. However, the center beam spanning over part of the great room and the nook/dining room needs to be strengthened throughout its center section. The 2-11 7/8" LVL can be strengthened by adding an additional 6' piece of 11 7/8" LVL centered along the length of the beam. The wall placed furthest to the front of the home was framed as a two piece wall in lieu of balloon framing. It is our opinion that this is an adequate way of framing the wall with the addition of steel straps between the two walls. The straps should be placed in the wall sections between the windows and extended a minimum of 16" above and below the hinge point of the wall. The girder truss at the exterior of bedroom #2 could not be constructed by the truss manufacturer. In place of the truss, it is our opinion that a (2) 9 ''/z" LVL can be used to span across the bedroom to support the trusses above. Main Office 524 Stover Street Fort Collins, Colorado 80524 Phone: (970) 498-9537 Cell: (970) 691-4239 Fax: (970) 221-1521 e-mail: revessf5@msn.com Grown Z"imeri"' W . StrUCtUral,Z4In5pection5 One of the beams for the highest landing for the upper deck will need to be hung to the framing of one of the house corner frame studs. The hanger can be of the concealed type to properly attach it to the house framing. Thank you for consulting with us on this phase of the project. If you have any questions, please do not hesitate to contact me at (970) 691-4239. Sincerely, (Crown. es So P.E. Structural En .....•• �SIONN� Main Office 524 Stover Street Fort Collins, Colorado 80524 Phone: (970) 498-9537 Cell: (970) 691-4239 e-mail revessf5(rrlmsaeom