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Page 2 of 2 <br /> B. Solar Panel Anchorage <br /> 1. The solar panels shall be mounted in'accordance with the most recent "Ecofasten Installation <br /> Manual", which can be found on the Ecofasten website (http://ecofasten.coml). If during solar panel <br /> installation, the roof framing members appear unstable or deflect non-uniformly, our office should <br /> be notified before proceeding with the installation. <br /> 2. Maximum allowable pullout per lag screw is 235 Ibs/inch of penetration as identified in the National <br /> Design Standards (NDS) of timber construction specifications -for Doug-Fir (North -Lumber) <br /> assumed.. Based on our evaluation, the pullout value, utilizing a penetration depth of 2 1/2", is less <br /> than what is allowable per connection and therefore is adequate. Based on.the variable factors for <br /> the existing roof framing and installation tolerances, using.a thread depth of 2 '/2" with a minimum <br /> size of 5/16" lag screw per attachment-point for panel anchor mounts should be adequate with a <br /> sufficient factor of safety. <br /> 3. Considering the roof slopes; the size, spacing; condition of roof, the panel supports shall be placed <br /> no greater than 48".o/c. <br /> . 4. Panel supports connections shall be staggered to distribute_load to adjacent trusses. <br /> Based on the above evaluation, it is the,opinion of this office that with appropriate;panel anchors being utilized <br /> the roof system will adequately support the additional loading imposed by the solar panels. This evaluation is.in <br /> conformance with the FBC 2017, 6th Edition,- current industry and-standards, and based on information <br /> supplied to us at the time of this report. <br /> Should you have any questions regarding the above or if you require further information do not hesitate to <br /> contact me. <br /> V truly yours; <br /> Scott E.Wyssli , PE <br /> Florida License No. <br /> THIS PLAN HAS BEEN ELECTRONICALLY SIGNED AND ,t�„tj t 9111/1!I <br /> SEALED BY SCOTT WYSSllNG,PE USING A DIGTT'.AL \� ��✓ <br /> SIGNATURE AND DATE. PRINTED COPIES'OFTWS <br /> DOCUMENT ARE-NOT CONSIDERED SIGNED AND <br /> SEALED AND THE SIGNATURE MUST BE VERIFIED �\ ,`� . .•• ._� �j� _ <br /> ... ON A14Y ELECTRONIC COPIES- -- - ` ••`G�.N <br /> Scott E 11N.' tir=sgoad by ta.L1EWyssling p <br /> ON:C=US,Wy1sh,L=Alpine,O=Wyssling Consulgng, ,1 9 <br /> CN=Smt1 E Wyssling <br /> ';E-swyssling@wysslingmnsulgng.mm <br /> 16,"a 1—the authorofthlsdocument - <br /> Wys s l i n g Lomgori:your signing locgtl T O'e 1 <br /> L '--Fote:Y020A1A21VorsT 3-0T00' <br /> -'FoxltPhgnlnmPOFVarslon:10.1.0 ► TA7t=OF <br /> O11AL <br /> 1 t1ti1 <br /> WCONSULTING <br />