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January 12, 2022 <br />Unirac <br />1411 Broadway Blvd- NE <br />Albuquerque, NM 87102 <br />Attn.: Unirac - Engineering Department <br />Re: Engineering Certification for the Unirac U-Binder 2.0 SOLARMOUNT flush Rail <br />PZSE, Inc. - Structural Engineers has reviewed the Unirac SOLARMOUNT rails, proprietary mounting system constructed <br />from modular parts which is intended for rooftop installation of solar photovoltaic (PV) panels; and has reviewed the U- <br />builder Online tool. This U-Builder software includes analysis for the SOLARMOUNT LIGHT rail, SOLARMOUNT <br />STANDARD fad, and SOLARMOUNT HEAVY DUTY rail with Standard and Pro Series hardware. All information, data and <br />analysis contained within are based on, and comply with the following codes and typical specifications: <br />1- Minimum Design Loads for Buildings and other Structures, ASCE/SEi 7.05, ASCE/SE1 7-10, ASCE/SEI 7.16 <br />2. 2006-2018 International Building Code, by International Code Council, Inc. w/ Provisions from SEAOC PV-2 2017. <br />3. 20D6-2018 International Residential Code, by International Code Councd, Inc. w/ Provisions from SEAOC PV-2 <br />2017. <br />4. AC428, Acceptance Criteria for Modular Framing Systems Used to Support Photovoltaic (PV) Panel, November <br />1, 2012 by ICC•ES. <br />S. 2015 Aluminum Design Manual, by The Aluminum Association, 201S <br />Following are typical specifications to meet the above code requirements: <br />Design Criteria: Ground Snow load = 0 - 100 (psfI <br />Basic Wind Speed 85 - 190 (mph) <br />Roof Mean Height ; 0 - 60 ift) <br />Roof Pitch = 0.45 (degrees) <br />Exposure Category : 8, C & D <br />Attachment Spacing: Per U-budder Engineering report. <br />Cantilever. Max -mum cantilever length is L/3, where "L' is the span noted in the U-8uilder online <br />tool. <br />Clearance. 2" to 10' clear from top of roof to top of PV panel_ <br />Tolerance(s): 1.(r tolerance for any specified dimension in this report is ailowed for installation. <br />Installation Oflentation_ See SOLARM04JNT Rail Flush Installation Guide. <br />Landscape PV Panel long dimension is parallel to ndg%ave line of roof and the PV <br />panel is mounted on the long side. <br />Portrait - PV Panel short dimension is parallel to ridge/rave line of roof and the PV panel <br />n mounted on the short side. <br />1478 Stone Point Drive. Suite 190. Roseville. CA 95661 <br />9146 961 3960 916,961.3965 vvwW pisex-o"i 101.1 <br />Components and Cladding Roof Zones: <br />The Components and Cladding Roof Zones shall be determined based on ASCE 7.05, ASCE 7.10 & 7-16 Component and <br />Cladding design. <br />Notes: 11 U-builder Online tool analysis is only for Unirac SM SOLARMOUNT Rail flush systems only and du <br />Include roof capacity check, <br />21 Risk Category II per ASCE 7-16. <br />31 Topographic factor, kit is 1.0, <br />41 Array Edge Factor Y, - 1.5 <br />51 Average parapet height is 0.0 ft. <br />6► Wind speeds are LRFD values. <br />7) Attachment spacing(s) apply to a seismic design category E or less. <br />Design Responsibility: <br />The U-Builder design software is intended to be used under the responsible charge of a registered design professional <br />where required by the authority having jurisdiction. In all cases, thn U-budder software should be used under the <br />direction of a design professional with sufficient structural engineering knowledge and experience to be able to: <br />Evaluate whether the U-Builder Software is applicable to the project, and <br />Understand and determine the appropriate values for all input parameters of the U-Builder software. <br />Thn letter certifies that the Unirac SM SOLARMOUNT Rain Flush, when installed according to the U-Builder engineering <br />report and the manufacture specifications, is in compliance with the above codes and loading criteria. <br />This certification excludes evaluation of the following components: <br />1) The structure to support the loads imposed on the building by the array; including, but not limited to: strength <br />and deflection of structural framing members, fastening and/or strength of roofing materials, and/or the effects <br />of snow accumulation on the structure. <br />2) The attachment of the SM SOLARMOUNT Rails to the existing structure. <br />3) The capacity of the solar module frame to resist the loads. <br />This requires additional knowlMgo of the building and is outside the scopeof the certification of this racking system_ <br />If you have any questions on the above, do not hesitate to call. <br />Prepared by- <br />PZSE, Inc. - Structural Engineers <br />Roseviie, CA <br />DIGITALLY SIGNED <br />rio ms oiv� <br />1478 Stone Point Drive, Smite 190, Roseville, CA 95661 <br />916 961 3960 916.961 3965 vnvW fww.com , <br />Lumio_ <br />SMART ENERGY TODAY <br />(SET) <br />1550 DIGITAL DR, LEHI, UT <br />84043, USA <br />SYSTEM INFO <br />(24) Q CELLS <br />Q.PEAK DUO BLK ML-G10+ <br />(400W ) <br />(24) ENPHASE <br />IQ8PLUS-72-2-US (240V) <br />DC SYSTEM SIZE: 9.600 kWDC <br />AC SYSTEM SIZE: 7.200 kWAC <br />REVISIONS <br />DESCRIPTION I DATE IREV <br />PROJECT NAME & ADDRESS <br />a <br />U) <br />Z) <br />O <br />N <br />O O <br />O O <br />Z <br />O <br />N <br />aw <br />O <br />LO <br />W LU <br />(n <br />to <br />� <br />0 W 00 <br />W W o <br />IY LL <br />= <br />U <br />Q Z <br />a <br />� Q <br />m <br />J <br />O <br />U <br />00 <br />rn <br />DATE: 11 /1 /2022 <br />SHEET NAME <br />EQUIPMENT <br />SPECIFICATIONS <br />SHEET SIZE <br />ANSI B <br />11" X 17" <br />SHEET NUMBER <br />PV-21 <br />