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JAMES A. CLANCY <br /> PROFESSIONAL ENGINEER <br /> 601 ASBUR Y AVENUE <br /> NATIONAL PARK, NJ 08063 <br /> (856) 358-1125 FAX: (856) 358-1511 <br /> Construction Code Office <br /> Date: February 18,2021 <br /> Re: Structural Roof Certification <br /> Subj: Hartnell Residence,39910 Dawson Chase Dr.,Zephyrhills FL 33540 <br /> We have provided a review of the house roof constriction of the above named property in regards to <br /> verifying the capacity of the existing roof for installation of a new Solar Panel Array. <br /> We have found the residence to be of wood frame construction bearing walls with a truss framed roof <br /> system. The roofs are of 2x4 @ 24" o.c. trus5k and is sheathed with 1/2" ext-ply sheathing and a single <br /> layer of asphalt shingle roofing. <br /> The wood framed roof structure bears directly upon the framed exterior wall system. The wood framed <br /> roof structure bears directly upon the framed exterior wall system. The existing members meet FRC- <br /> 2017 and IRC-2017 design span ratings with sufficient capacity to carry the 4#/sf additional load <br /> imposed by the proposed solar array per the details below: Per FL stature 377.705 (revised 7/1/2017) I, <br /> James A Clancy PE#64848 licensed pursuant to chapter 471, certify that the PV electrical system and <br /> electrical components are designed using the standards contained in the most recent version of the <br /> Florida Building Code. <br /> Installation of solar rack systems shall be as follows: <br /> Each panel row shall be supported upon 2 mounting rails. Rails shall be screw anchored <br /> through roof and directly to rafters or purlins.below. Rail attachment points to rafters shall be <br /> staggered each row with exception to the first fastener row from the gable end which is <br /> attached to two adjacent rafters/trusses with Stainless Steel fasteners. <br /> Rail attachment to roof shall be fastened 24"o.c.at corners and 48"o.c.through the field. <br /> Rails are to be placed at 24-48"o.c.on the roof. <br /> Solar panel mounting systems installed parallel to the plane of a roof shall be no more than 12"above the <br /> roof when measured perpendicular to the roof surface. <br /> When installed per the above specifications the system shall meet the required 145 MPH wind load and <br /> 0 PSF ground snow load requirements. <br /> Should you have any further questions or comments please feel free to contact our office. <br /> Respectfully, �.,a�� <br /> James A. Cl <br /> Professional n to <br /> FL License 6 4 <br /> �Q�•. cTATE GF <br /> • 1 <br /> i <br />