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The Roof Reinforcer <br /> Building Official <br /> Planning & Development <br /> City of Everett <br /> 2930 Wetmore Ave. <br /> Everett, WA 98201 <br /> Date= August 7, 2017 <br /> Subject: Structural Analysis for HVAC Equipment Replacement <br /> RE: Waigreens 5598—6807 Evergreen Way, Everett, WA 98203 <br /> Dear Building Official, <br /> Thank you for your time to review this report. <br /> We have been retained to provide structural services associated with Walgreens' plan to replace certain <br /> roof top mounted HVAC units. <br /> This report provides an analysis of the vertical load effect of the replacement units on the roof. The <br /> lateral hold-down connections are being provided by the contractor. <br /> We have received data regarding both the existing and new units and have included it in this report, along <br /> with data regarding adaptor curbs. The data is summarized in the table below. � <br /> We have conducted a structural analysis (please see calculations attached), and have concluded that the <br /> structure is adequate to support the proposed loads without reinforcement. <br /> Please permit this structure without any further structural analysis required. If additional analysis is <br /> required, please advise. I'd be happy to answer any questions you havel <br /> E�6sting HVAC Data New HVAC Data ANALYSIS <br /> RTU# RTU SQE � �del Weight �J SQE N�R Model Num ber ��9ht adaptor Total Weight <br /> Number (Total) (Total) curb weight Change <br /> 1 8.5 Trane YCD103C 1438 7.5 York Z1090N18R285 1246 150 1396 -42 <br /> 2 10 Trane YCD121C 1793 10 York ZR120N24R2B5 1406 224 1630 -163 <br /> 3 8.5 Trane YCD103C 1438 7.5 York ZJ090N18R2B5 1246 150 1396 -42 <br /> 4 8.5 Trane YCD103C 1438 7.5 York ZJ090N18R285 1246 150 1396 -42 <br /> 5 3 Trane YCD037C 771 3 York ZJ037N12D2B5 926 185 1111 340 <br /> 6 4 Trane YCD049C 792 4 York Z1049N12D265 961 185 1146 354 <br /> �.�., � <br /> =�.::,. <br /> ��J 4�,�� i'`. :�' �, <br /> /I��l�c A/I//��/J//� I`�lXl �e-� �i� • /w ti4� <br /> �"%I/T �4j •f��, •� K,,+ <br /> v V.f'-.�•d'�"• � <br /> ��{ph'ti�l <br /> `��:__,��:�' <br /> Timothy P. McCarthy, P.E. �^�°a .�F.����;?,�� �'��, <br /> Principal �'FS�ION qL�t1�s�r <br /> www.TheRoofReinforcer.com <br /> 43�E.Niain Street B,Ventura,CA 93001 Main(805)Er4&8949 <br /> 11818 <br /> Page 2 <br />