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HomeMy WebLinkAboutEngineer's Framing Letter 10.13.2022KURTZ & ASSOCIATES, INCORPORATED Structural Consultants 5012 County Road 154 Phone (970) 945-6305 Glenwood Springs, CO 81601 FIELD OBSERVATION REPORT NO. I TO: Garfield County Building & Planning COPY TO: Uriel Mellin THE FOLLOWING WAS OBSERVED: DATE: 10/13/2022 PROJECT: TBD Calicotte Ranch Road Lot No. 8, Calicotte Ranch Subdivision Garfield County, Co. OWNER: Uriel Mellin PRESENT AT SITE: 1. Brian Kurtz, Kurtz & Assoc., Inc. 2. Uriel Mellin The intent of this inspection was that it was to be a final framing inspection. Prior to performing the inspection I reviewed the structural construction documents issued by Lindauer-Dunn, Inc. dated July 08, 2021. Lindauer-Davin is the structural engineer of record (E.O.R.) for the project. General Comments: At the time of my inspection the framing of the residence was complete and all of the interior and exterior wall framing was exposed to view. Note that all of the wall framing was constructed using wood. manufactured Timber -strand studs. Note that the E.O.R. specified that all structural headers be supported, each end, with (2) jack studs + (1) king stud. The only exception to this typical specification was at the north wall of the entry. Exterior Wall Framing: All of the exterior and interior bearing wall framing was complete and is structurally acceptable. Note that in that this is a custom residence, it appears that the door and window schedule was strictly adhered to: as -built opening sizes and locations throughout the residence were consistent with the construction documents. The minimum header of (3)-2 x 10's was installed as specified throughout the residence. Headers greater than the minimum were Laminated Veneer Lumber (LVL) headers. The LVL headers were installed as specified or greater. Great Room Floor Framing: The great room floor is framed with the specified 11.7/8" TJI's spaced at 16" on center spanning north to south. At the south wall of the great room a series of pocket doors is to be installed and an approximately 14" long section of the TJI top chord was specified to be removed to accommodate the bottom track of the pocket doors. The TJI's have been reinforced in accordance with the detail provided by the E.O.R. Main Level South Deck Framing: Off of the great room the south deck was constructed in accordance with the specifications. Post caps to connect the timber posts to the timber beams were fabricated from structural steel plate rather than the specified Simpson caps. The fabricated caps are structurally acceptable with one exception: where the cap is a `T' connection to accommodate a three (3) beam connection I recommended an additional 3/16" x 4.1/2" fillet weld be added to the intersection of the bucket for the transverse beam to primary cap connection. Roof Framing &Structural Steel Braces: The roof framing at lower and upper roofs was complete, and is in accordance with the structural documents. At the south wall of the Great Room the cantilevered south roof is supported by a structural steel system which includes four (4) — 5" square structural steel tube columns with structural steel knee braces. This framing has been constructed in accordance with the E.O.R.'s specifications to include the detail at the top of the columns. At the top of the columns the columns are bolted with (3) — 3/4" diameter bolts to (3) ply girder trusses as specified. Decorative Great Room Trusses: The Great Room roof framing includes an unframed decorative heavy timber framing system. The decorative timber system includes a 6 x 12 timber ridge beam and four (4) timber trusses. This decorative system has been installed in a structurally acceptable manner. I recommended improvements to the support of the truss bottom chords where they frame to primary roof framing: i.e. to the bottom chord of the manufactured roof trusses. Two of the decorative trusses frame directly to the noted (3) ply girder trusses. At these locations I recommended additional screws be installed. Two of the decorative trusses frame between primary trusses. At these locations I recommended that the decorative trusses be supported with a (2)- 5.1/2" LVL header. I understand that, at this time (10/20/22) these improvements have been completed. Lower Level Crawl Space Framing: The lower floor framing was observed from the crawl space. Lower level floor joists are 11.7/8" TH's spaced at 16" on center spanning north to south. The crawl space floor framing was installed as specified with two (2) exceptions: On the north side of the crawl space there is a (3) — 9.1/2" LVL floor beam which was to bear in beam pockets each end. The beam pockets were not installed so that the LVL bears on (2) — 2 x 6 treated end posts. The as -built end posts are structurally acceptable. The TH's were specified to be supported at the crawl space walls with continuous ledgers. The contractor chose to construct continuous 2 x 4 pony walls with continuous pressure treated 2 x 4 sill plates. From a framing standpoint the pony walls are constructed in a structurally acceptable manner. The E.O.R. should be copied with this report so that he can verify that his foundation design is not impacted by the change. Conclusion: The framing for the residence is complete, and the framing has been completed in a structurally appropriate and structurally adequate manner. SAY`:q�. • d • 20 2Z