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Home My WebLink AboutLA193812 - Approved Huntington Ave. Structural Calcs Stamped 8.16.21 Version #90.6 - 1 NAS RE: CERTIFICATION LETTER Project/Job # 550244 #SSTAMP Project Address: Otts Residence 19358 Huntington Ave Lakeville, MN 55044 AHJ Lakeville SC Office Minneapolis-Temp Design Criteria: Note: Per IBC 1613.1; Seismic check is not required because Ss = 0.048 < 0.4g and Seismic Design Category (SDC) = A < D To Whom It May Concern, #SIGNATURE - Applicable Codes = Structure: 2018 IEBC; PV: 2020 Minnesota Building Code including 2018 IBC, ASCE 7-16, and 2018 NDS - Risk Category = II - Wind Speed = 110 mph (3-s Gust - Vult), Exposure Category C, Partially/Fully Enclosed Method - Ground Snow Load = 50 psf A structural evaluation of loading was conducted for the above address based on the design criteria listed above. Based on this evaluation, I certify that the alteration to the existing structure by installation of the PV system meets the prescriptive compliance requirements of the applicable existing building and/or new building provisions adopted/referenced above. Additionally, I certify that the PV module assembly including all standoffs supporting it have been reviewed to be in accordance with the The PV assembly hardware specifications are contained in the plans/docs submitted for approval. Installer shall verify existing roof framing is in suitable condition and does not exhibit any signs of structural damage which may diminish the capacity of its members or connections prior to commencement of PV installation. Installer verification of the mounting planes noted above is required because some or all of the framing was not observed prior to the structural evaluation performed for this report. - MP4: Roof DL = 9 psf, Roof LL/SL = 34.7 psf (Non-PV), Roof LL/SL = 27.8 psf (PV) - MP1: Roof DL = 9 psf, Roof LL/SL = 34.7 psf (Non-PV), Roof LL/SL = 25.5 psf (PV) August 12, 2021 Tesla, Inc. 3055 Clearview Way, San Mateo, CA 94402 p 650 638 1028 f 650 638 1029 "STRUCTURAL ONLY" 08/12/2021 Version #90.6 - 1 NAS X-X Spacing X-X Cantilever Y-Y Spacing Y-Y Cantilever Configuration Uplift DCR MP1 72'' 24'' 41'' NA Staggered 49.8% MP4 48'' 23'' 41'' NA Staggered 33.1% X-X Spacing X-X Cantilever Y-Y Spacing Y-Y Cantilever Configuration Uplift DCR MP1 48'' 17'' 69'' NA Staggered 56.1% MP4 24'' 15'' 69'' NA Staggered 27.9% Type (Degrees)Spacing MP1 Stick Frame 26°24'' O.C. MP4 Stick Frame 22°24'' O.C. Roof Pitch Hardware - Portrait Modules' Standoff Specifications Mounting Plane Member Evaluation Results Member Impact Check OK Member Impact Check OK Hardware - Landscape Modules' Standoff Specifications Qualification Results Landscape Hardware Portrait Hardware HARDWARE DESIGN AND STRUCTURAL EVALUATION RESULTS SUMMARY TABLES Tesla, Inc. 3055 Clearview Way, San Mateo, CA 94402 p 650 638 1028 f 650 638 1029