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L U M'1'0 <br /> PZ P7- <br /> structural <br /> structural <br /> ENGINEERS ENGINEERS <br /> Components and Cladding Roof Zones: <br /> November 3,2021 The Components and Cladding Roof Zones shall be determined based on ASCE 7-10&7-16 Component and <br /> Cladding design. <br /> Unirac <br /> 1411 Broadway Blvd.NE Notes: <br /> Albuquerque,NM 87102 2) Risk Category II per ASCE 7–unless otherwise specified. <br /> Attn.:Unirac-Engineering Department 3)Topographic factor,kzt is 1.0–unless otherwise specified. VERSION <br /> 4)Array Edge Factor YE=1.5 <br /> DESCRIPTION DATE REV <br /> Re:Engineering Certification for the Unirac NXT Horizon System U-builder Software 5)Average parapet height is 0.0 ft. INITIAL RELEASE 07/19/2023 LIR <br /> 6) Wind speeds are LRFD values. <br /> PZSE, Inc.-Structural Engineers has reviewed the NXT Horizon System,a proprietary mounting system 7)Attachment spacing(s)apply to a seismic design category E or less. <br /> constructed from modular parts which is intended for rooftop installation of solar photovoltaic(PV)panels; <br /> Design Responsibility: <br /> and the Unirac NXT U-builder Online tool.All information,data and analysis contained within are based on, <br /> The U-Builder design software is intended to be used under the responsible charge of a registered design <br /> and comply with the following codes and typical specifications: <br /> professional where required by the authority having jurisdiction.In all cases,this U-builder software should <br /> 1. Minimum Design Loads for Buildings and other Structures,ASCE/SEI 7-05,ASCE/SEI 7-10,ASCE/SEI 7- be used under the direction of a design professional with sufficient structural engineering knowledge and <br /> 16 experience to be able to: <br /> 2. 2006-2018 International Building Code,by International Code Council,Inc.w/Provisions from SEAOC <br /> • Evaluate whether the U-Builder Software is applicable to the project,and <br /> PV-2 2017. <br /> 3. 2006-2018 International Residential Code,by International Code Council,Inc.w/Provisions from <br /> • Understand and determine the appropriate values for all input parameters of the U-Builder <br /> SEAOC PV-2 2017. software. <br /> 4. AC428,Acceptance Criteria for Modular Framing Systems Used to Support Photovoltaic(PV)Panels, <br /> November 1,2012 by ICC-ES. This letter certifies that the Unirac NXT Horizon system,when installed according to the U-Builder PROJECT NAME <br /> 5. Aluminum Design Manual 2010&2015 Edition(s),by the Aluminum Association. engineering report and the manufacture specifications,is in compliance with the above codes and loading <br /> criteria. Q LO <br /> Following are typical specifications to meet the above code requirements: This certification excludes evaluation of the following components: Q > C) N <br /> 1) The structure to support the loads imposed on the building by the array;including,but not limited > Q r'- UJ O <br /> Design Criteria: Ground Snow Load=0-100(psf) to:strength and deflection of structural framing members,fastening and/or strength of roofing >- � ', <br /> Basic Wind Speed=90 190(mph) materials,and/or the effects of snow accumulation on the structure. w 0 O O D- LU O <br /> J O N c+� D— <br /> Roof Mean Height=0-60(ft) 2) The capacity of the solar module frame to resist the loads. z O> 00 O O <br /> Roof Pitch=0-45(degrees) O > M OM z w m <br /> Exposure Category=B,C&D This requires additional knowledge of the building and is outside the scope of the certification of this racking � w Q (N (n O <br /> Cantilever: Maximum cantilever length is L/3,where"L"is the span noted in the U- system. — L0 Z) <br /> Builder online tool. K. Z'J O O z <br /> If you have any questions on the above,do not hesitate to call `F µ.tis// tiF 0C:) J u <br /> Clearance: 2"to 10"clear from top of roof to top of PV panel. �` �; (� * u U <br /> Prepared by: ` Z Z <br /> Installation Orientation: See NXT Horizon Installation Guide. PZSE,Inc.–Structural Engineers Q -:-iw <br /> O <br /> Landscape-PV Panel long dimension is parallel to the rail. Roseville,CA g- Z O LJ� IZ ---J> Q Q O <br /> Portrait-PV Panel short dimension is parallel to the rail. °��. k%-rs I c�`° ` W 0 <br /> S.S IO.h'Al. <br /> EXPIRES 08/021202_ <br /> SHEET NAME <br /> SPEC SHEETS <br /> 1478 Stone Point Drive,Suite 190, Roseville,CA 95661 1478 Stone Point Drive,Suite 190, Roseville,CA 95661 <br /> 916.961.3960 916.961.3965 www.pzse.com t of 2 916.961.3960 916.961.3965 www.pzse.com 2 of 2 SHEET SIZE <br /> ANSI B <br /> 11" X 17" <br /> SHEET NUMBER <br /> PV-17 <br />